./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-03 03:00:44,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:00:44,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:00:44,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:00:44,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:00:44,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:00:44,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:00:44,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:00:44,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:00:44,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:00:44,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:00:44,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:00:44,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:00:44,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:00:44,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:00:44,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:00:44,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:00:44,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:00:44,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:00:44,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:00:44,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:00:44,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:00:44,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:00:44,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:00:44,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:00:44,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:00:44,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:00:44,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:00:44,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:00:44,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:00:44,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:00:44,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:00:44,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:00:44,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:00:44,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:00:44,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:00:44,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:00:44,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:00:44,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:00:44,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:00:44,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:00:44,720 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 03:00:44,735 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:00:44,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:00:44,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 03:00:44,739 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 03:00:44,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 03:00:44,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 03:00:44,740 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 03:00:44,740 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:00:44,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:00:44,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:00:44,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:00:44,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:00:44,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:00:44,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:00:44,741 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:00:44,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:00:44,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:00:44,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:00:44,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:00:44,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:00:44,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:00:44,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:00:44,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:00:44,743 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 03:00:44,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:00:44,743 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 03:00:44,743 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 03:00:44,743 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:00:44,744 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:00:44,744 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 [2021-11-03 03:00:44,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:00:44,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:00:44,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:00:44,924 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:00:44,924 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:00:44,925 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-03 03:00:44,989 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77b8c4e66/5530ac1f00bc4ad28e7a261fced2d12b/FLAG7fb4ffbb3 [2021-11-03 03:00:45,629 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:00:45,630 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-03 03:00:45,692 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77b8c4e66/5530ac1f00bc4ad28e7a261fced2d12b/FLAG7fb4ffbb3 [2021-11-03 03:00:46,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77b8c4e66/5530ac1f00bc4ad28e7a261fced2d12b [2021-11-03 03:00:46,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:00:46,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:00:46,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:00:46,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:00:46,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:00:46,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:00:46" (1/1) ... [2021-11-03 03:00:46,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5565a82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:00:46, skipping insertion in model container [2021-11-03 03:00:46,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:00:46" (1/1) ... [2021-11-03 03:00:46,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:00:46,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:00:48,898 WARN L228 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-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2021-11-03 03:00:48,901 WARN L228 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-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2021-11-03 03:00:48,901 WARN L228 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-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2021-11-03 03:00:48,902 WARN L228 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-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2021-11-03 03:00:48,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:00:49,007 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:00:49,270 WARN L228 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-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2021-11-03 03:00:49,270 WARN L228 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-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2021-11-03 03:00:49,271 WARN L228 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-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2021-11-03 03:00:49,271 WARN L228 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-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2021-11-03 03:00:49,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:00:49,410 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:00:49,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:00:49 WrapperNode [2021-11-03 03:00:49,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:00:49,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:00:49,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:00:49,411 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:00:49,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:00:49" (1/1) ... [2021-11-03 03:00:49,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:00:49" (1/1) ... [2021-11-03 03:00:52,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:00:52,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:00:52,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:00:52,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:00:52,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:00:49" (1/1) ... [2021-11-03 03:00:52,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:00:49" (1/1) ... [2021-11-03 03:00:52,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:00:49" (1/1) ... [2021-11-03 03:00:52,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:00:49" (1/1) ... [2021-11-03 03:00:54,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:00:49" (1/1) ... [2021-11-03 03:00:54,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:00:49" (1/1) ... [2021-11-03 03:00:54,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:00:49" (1/1) ... [2021-11-03 03:00:55,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:00:55,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:00:55,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:00:55,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:00:55,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:00:49" (1/1) ... [2021-11-03 03:00:55,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:00:55,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 03:00:55,459 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:00:55,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:00:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:00:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-03 03:00:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-03 03:00:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 03:00:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:00:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:00:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-03 03:00:55,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-03 03:00:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:00:55,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:00:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 03:00:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 03:00:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2021-11-03 03:00:55,495 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2021-11-03 03:00:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:00:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:00:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:00:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 03:00:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-03 03:00:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 03:01:04,109 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-03 03:01:04,110 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-03 03:01:04,110 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-03 03:01:04,110 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-03 03:01:04,111 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-03 03:01:04,111 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2021-11-03 03:01:04,111 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2021-11-03 03:01:04,111 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-03 03:01:04,111 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res := 0; [2021-11-03 03:01:04,111 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res := 0; [2021-11-03 03:01:04,111 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#9: ldv_switch_0_#res := 0; [2021-11-03 03:01:04,112 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#11: ldv_switch_0_#res := 0; [2021-11-03 03:01:04,112 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#10: ldv_switch_0_#res := 0; [2021-11-03 03:01:04,113 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#12: ldv_switch_0_#res := 0; [2021-11-03 03:01:04,114 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 03:01:04,117 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-03 03:01:04,161 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:01:04,162 INFO L299 CfgBuilder]: Removed 30415 assume(true) statements. [2021-11-03 03:01:04,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:01:04 BoogieIcfgContainer [2021-11-03 03:01:04,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:01:04,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:01:04,177 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:01:04,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:01:04,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:00:46" (1/3) ... [2021-11-03 03:01:04,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45dc13b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:01:04, skipping insertion in model container [2021-11-03 03:01:04,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:00:49" (2/3) ... [2021-11-03 03:01:04,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45dc13b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:01:04, skipping insertion in model container [2021-11-03 03:01:04,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:01:04" (3/3) ... [2021-11-03 03:01:04,182 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-03 03:01:04,186 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:01:04,186 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2021-11-03 03:01:04,258 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:01:04,263 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:01:04,263 INFO L340 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2021-11-03 03:01:04,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 17266 states, 17202 states have (on average 1.219625624927334) internal successors, (20980), 17251 states have internal predecessors, (20980), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-03 03:01:04,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-03 03:01:04,439 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 03:01:04,440 INFO L514 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] [2021-11-03 03:01:04,441 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 03:01:04,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:01:04,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1200985652, now seen corresponding path program 1 times [2021-11-03 03:01:04,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 03:01:04,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585154724] [2021-11-03 03:01:04,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:01:04,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:01:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:01:05,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:01:05,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 03:01:05,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585154724] [2021-11-03 03:01:05,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585154724] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:01:05,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:01:05,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 03:01:05,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108457340] [2021-11-03 03:01:05,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 03:01:05,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 03:01:05,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 03:01:05,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:01:05,465 INFO L87 Difference]: Start difference. First operand has 17266 states, 17202 states have (on average 1.219625624927334) internal successors, (20980), 17251 states have internal predecessors, (20980), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:01:11,509 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:01:26,138 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:01:50,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:01:50,585 INFO L93 Difference]: Finished difference Result 50408 states and 61299 transitions. [2021-11-03 03:01:50,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 03:01:50,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2021-11-03 03:01:50,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:01:50,750 INFO L225 Difference]: With dead ends: 50408 [2021-11-03 03:01:50,750 INFO L226 Difference]: Without dead ends: 33082 [2021-11-03 03:01:50,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.31ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:01:50,852 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 19682 mSDsluCounter, 20840 mSDsCounter, 0 mSdLazyCounter, 41192 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35895.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19682 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 41201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 78.08ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41192 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43466.42ms IncrementalHoareTripleChecker+Time [2021-11-03 03:01:50,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19682 Valid, 576 Invalid, 41201 Unknown, 0 Unchecked, 78.08ms Time], IncrementalHoareTripleChecker [7 Valid, 41192 Invalid, 2 Unknown, 0 Unchecked, 43466.42ms Time] [2021-11-03 03:01:50,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33082 states. [2021-11-03 03:01:51,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33082 to 33046. [2021-11-03 03:01:51,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33046 states, 32967 states have (on average 1.2018988685655352) internal successors, (39623), 33017 states have internal predecessors, (39623), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-11-03 03:01:51,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33046 states to 33046 states and 39675 transitions. [2021-11-03 03:01:51,889 INFO L78 Accepts]: Start accepts. Automaton has 33046 states and 39675 transitions. Word has length 126 [2021-11-03 03:01:51,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:01:51,892 INFO L470 AbstractCegarLoop]: Abstraction has 33046 states and 39675 transitions. [2021-11-03 03:01:51,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:01:51,893 INFO L276 IsEmpty]: Start isEmpty. Operand 33046 states and 39675 transitions. [2021-11-03 03:01:51,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-03 03:01:51,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 03:01:51,898 INFO L514 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] [2021-11-03 03:01:51,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 03:01:51,899 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 03:01:51,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:01:51,901 INFO L85 PathProgramCache]: Analyzing trace with hash -289314059, now seen corresponding path program 1 times [2021-11-03 03:01:51,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 03:01:51,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305570884] [2021-11-03 03:01:51,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:01:51,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:01:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:01:52,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:01:52,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 03:01:52,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305570884] [2021-11-03 03:01:52,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305570884] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:01:52,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:01:52,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 03:01:52,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771664894] [2021-11-03 03:01:52,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 03:01:52,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 03:01:52,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 03:01:52,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:01:52,174 INFO L87 Difference]: Start difference. First operand 33046 states and 39675 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:02:06,573 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:02:13,788 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:02:15,818 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:02:26,787 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:02:53,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:02:53,650 INFO L93 Difference]: Finished difference Result 97780 states and 117386 transitions. [2021-11-03 03:02:53,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 03:02:53,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2021-11-03 03:02:53,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:02:53,863 INFO L225 Difference]: With dead ends: 97780 [2021-11-03 03:02:53,863 INFO L226 Difference]: Without dead ends: 65026 [2021-11-03 03:02:54,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.43ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:02:54,009 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 19590 mSDsluCounter, 20223 mSDsCounter, 0 mSdLazyCounter, 40586 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49560.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19590 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 40596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 85.51ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40586 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59562.93ms IncrementalHoareTripleChecker+Time [2021-11-03 03:02:54,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19590 Valid, 74 Invalid, 40596 Unknown, 0 Unchecked, 85.51ms Time], IncrementalHoareTripleChecker [8 Valid, 40586 Invalid, 2 Unknown, 0 Unchecked, 59562.93ms Time] [2021-11-03 03:02:54,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65026 states. [2021-11-03 03:02:55,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65026 to 64758. [2021-11-03 03:02:55,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64758 states, 64651 states have (on average 1.2010641753414486) internal successors, (77650), 64705 states have internal predecessors, (77650), 52 states have call successors, (52), 8 states have call predecessors, (52), 6 states have return successors, (74), 46 states have call predecessors, (74), 52 states have call successors, (74) [2021-11-03 03:02:55,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64758 states to 64758 states and 77776 transitions. [2021-11-03 03:02:55,482 INFO L78 Accepts]: Start accepts. Automaton has 64758 states and 77776 transitions. Word has length 127 [2021-11-03 03:02:55,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:02:55,483 INFO L470 AbstractCegarLoop]: Abstraction has 64758 states and 77776 transitions. [2021-11-03 03:02:55,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:02:55,483 INFO L276 IsEmpty]: Start isEmpty. Operand 64758 states and 77776 transitions. [2021-11-03 03:02:55,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-03 03:02:55,497 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 03:02:55,497 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:02:55,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 03:02:55,497 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 03:02:55,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:02:55,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1815155163, now seen corresponding path program 1 times [2021-11-03 03:02:55,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 03:02:55,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43532629] [2021-11-03 03:02:55,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:02:55,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:02:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:02:55,713 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:02:55,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 03:02:55,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43532629] [2021-11-03 03:02:55,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43532629] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:02:55,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:02:55,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 03:02:55,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39421155] [2021-11-03 03:02:55,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 03:02:55,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 03:02:55,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 03:02:55,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:02:55,717 INFO L87 Difference]: Start difference. First operand 64758 states and 77776 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:03:23,424 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:03:32,389 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-03 03:03:37,375 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:03:39,409 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:03:44,022 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:04:49,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:04:49,574 INFO L93 Difference]: Finished difference Result 129340 states and 155369 transitions. [2021-11-03 03:04:49,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 03:04:49,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2021-11-03 03:04:49,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:04:49,896 INFO L225 Difference]: With dead ends: 129340 [2021-11-03 03:04:49,896 INFO L226 Difference]: Without dead ends: 96570 [2021-11-03 03:04:50,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.42ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:04:50,059 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 19430 mSDsluCounter, 20354 mSDsCounter, 0 mSdLazyCounter, 60104 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86988.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19430 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 60112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 97.72ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60104 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 110907.28ms IncrementalHoareTripleChecker+Time [2021-11-03 03:04:50,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19430 Valid, 78 Invalid, 60112 Unknown, 0 Unchecked, 97.72ms Time], IncrementalHoareTripleChecker [5 Valid, 60104 Invalid, 3 Unknown, 0 Unchecked, 110907.28ms Time] [2021-11-03 03:04:50,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96570 states. [2021-11-03 03:04:51,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96570 to 96480. [2021-11-03 03:04:52,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96480 states, 96344 states have (on average 1.2012164743004234) internal successors, (115730), 96401 states have internal predecessors, (115730), 78 states have call successors, (78), 12 states have call predecessors, (78), 9 states have return successors, (111), 69 states have call predecessors, (111), 78 states have call successors, (111) [2021-11-03 03:04:52,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96480 states to 96480 states and 115919 transitions. [2021-11-03 03:04:52,468 INFO L78 Accepts]: Start accepts. Automaton has 96480 states and 115919 transitions. Word has length 155 [2021-11-03 03:04:52,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:04:52,469 INFO L470 AbstractCegarLoop]: Abstraction has 96480 states and 115919 transitions. [2021-11-03 03:04:52,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:04:52,469 INFO L276 IsEmpty]: Start isEmpty. Operand 96480 states and 115919 transitions. [2021-11-03 03:04:52,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-03 03:04:52,478 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 03:04:52,478 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:04:52,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 03:04:52,479 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 03:04:52,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:04:52,479 INFO L85 PathProgramCache]: Analyzing trace with hash 535291485, now seen corresponding path program 1 times [2021-11-03 03:04:52,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 03:04:52,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951789636] [2021-11-03 03:04:52,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:04:52,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:04:52,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:04:52,716 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:04:52,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 03:04:52,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951789636] [2021-11-03 03:04:52,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951789636] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:04:52,717 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:04:52,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 03:04:52,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139478012] [2021-11-03 03:04:52,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 03:04:52,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 03:04:52,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 03:04:52,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:04:52,718 INFO L87 Difference]: Start difference. First operand 96480 states and 115919 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:04:54,969 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:05:48,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:05:50,281 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:06:09,079 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:07:24,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:07:24,138 INFO L93 Difference]: Finished difference Result 193412 states and 232367 transitions. [2021-11-03 03:07:24,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 03:07:24,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2021-11-03 03:07:24,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:07:24,489 INFO L225 Difference]: With dead ends: 193412 [2021-11-03 03:07:24,489 INFO L226 Difference]: Without dead ends: 128920 [2021-11-03 03:07:24,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.58ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:07:24,713 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 19767 mSDsluCounter, 20309 mSDsCounter, 0 mSdLazyCounter, 60350 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 113906.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19767 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 60359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 120.43ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 60350 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 147428.22ms IncrementalHoareTripleChecker+Time [2021-11-03 03:07:24,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19767 Valid, 78 Invalid, 60359 Unknown, 0 Unchecked, 120.43ms Time], IncrementalHoareTripleChecker [6 Valid, 60350 Invalid, 3 Unknown, 0 Unchecked, 147428.22ms Time] [2021-11-03 03:07:24,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128920 states. [2021-11-03 03:07:26,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128920 to 128887. [2021-11-03 03:07:27,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128887 states, 128722 states have (on average 1.2010767390189712) internal successors, (154605), 128782 states have internal predecessors, (154605), 104 states have call successors, (104), 16 states have call predecessors, (104), 12 states have return successors, (148), 92 states have call predecessors, (148), 104 states have call successors, (148) [2021-11-03 03:07:27,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128887 states to 128887 states and 154857 transitions. [2021-11-03 03:07:27,537 INFO L78 Accepts]: Start accepts. Automaton has 128887 states and 154857 transitions. Word has length 155 [2021-11-03 03:07:27,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:07:27,540 INFO L470 AbstractCegarLoop]: Abstraction has 128887 states and 154857 transitions. [2021-11-03 03:07:27,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:07:27,540 INFO L276 IsEmpty]: Start isEmpty. Operand 128887 states and 154857 transitions. [2021-11-03 03:07:27,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-03 03:07:27,550 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 03:07:27,553 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:07:27,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 03:07:27,554 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 03:07:27,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:07:27,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1115956186, now seen corresponding path program 1 times [2021-11-03 03:07:27,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 03:07:27,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792111879] [2021-11-03 03:07:27,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:07:27,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:07:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:07:27,859 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 03:07:27,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 03:07:27,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792111879] [2021-11-03 03:07:27,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792111879] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:07:27,860 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:07:27,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 03:07:27,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816887880] [2021-11-03 03:07:27,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:07:27,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 03:07:27,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:07:27,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:07:27,861 INFO L87 Difference]: Start difference. First operand 128887 states and 154857 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:08:12,632 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:11:04,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:11:04,927 INFO L93 Difference]: Finished difference Result 225590 states and 271017 transitions. [2021-11-03 03:11:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:11:04,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2021-11-03 03:11:04,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:11:05,784 INFO L225 Difference]: With dead ends: 225590 [2021-11-03 03:11:05,784 INFO L226 Difference]: Without dead ends: 225584 [2021-11-03 03:11:05,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.48ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:11:05,883 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 20105 mSDsluCounter, 40337 mSDsCounter, 0 mSdLazyCounter, 60701 mSolverCounterSat, 67 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 153753.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20105 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 60769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 202.08ms SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 60701 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 211940.25ms IncrementalHoareTripleChecker+Time [2021-11-03 03:11:05,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20105 Valid, 104 Invalid, 60769 Unknown, 0 Unchecked, 202.08ms Time], IncrementalHoareTripleChecker [67 Valid, 60701 Invalid, 1 Unknown, 0 Unchecked, 211940.25ms Time] [2021-11-03 03:11:06,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225584 states. [2021-11-03 03:11:10,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225584 to 225426. [2021-11-03 03:11:10,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225426 states, 225174 states have (on average 1.2009734694058816) internal successors, (270428), 225243 states have internal predecessors, (270428), 182 states have call successors, (182), 28 states have call predecessors, (182), 21 states have return successors, (259), 161 states have call predecessors, (259), 182 states have call successors, (259) [2021-11-03 03:11:11,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225426 states to 225426 states and 270869 transitions. [2021-11-03 03:11:11,443 INFO L78 Accepts]: Start accepts. Automaton has 225426 states and 270869 transitions. Word has length 156 [2021-11-03 03:11:11,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:11:11,443 INFO L470 AbstractCegarLoop]: Abstraction has 225426 states and 270869 transitions. [2021-11-03 03:11:11,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:11:11,443 INFO L276 IsEmpty]: Start isEmpty. Operand 225426 states and 270869 transitions. [2021-11-03 03:11:11,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-03 03:11:11,451 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 03:11:11,452 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:11:11,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-03 03:11:11,452 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 03:11:11,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:11:11,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1307339299, now seen corresponding path program 1 times [2021-11-03 03:11:11,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 03:11:11,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247678219] [2021-11-03 03:11:11,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:11:11,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:11:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:11:11,713 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 03:11:11,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 03:11:11,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247678219] [2021-11-03 03:11:11,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247678219] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:11:11,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:11:11,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 03:11:11,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918746735] [2021-11-03 03:11:11,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:11:11,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 03:11:11,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:11:11,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:11:11,715 INFO L87 Difference]: Start difference. First operand 225426 states and 270869 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:12:23,766 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:12:39,043 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15