./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.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 955ba2d33e196282c8a8d7d6878108af44ab130aa14cf65292e3d1ed9a6c4e47 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 16:36:48,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 16:36:48,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 16:36:48,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 16:36:48,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 16:36:48,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 16:36:48,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 16:36:48,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 16:36:48,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 16:36:48,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 16:36:48,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 16:36:48,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 16:36:48,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 16:36:48,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 16:36:48,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 16:36:48,969 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 16:36:48,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 16:36:48,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 16:36:48,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 16:36:48,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 16:36:48,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 16:36:48,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 16:36:48,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 16:36:48,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 16:36:48,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 16:36:48,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 16:36:48,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 16:36:49,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 16:36:49,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 16:36:49,005 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 16:36:49,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 16:36:49,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 16:36:49,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 16:36:49,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 16:36:49,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 16:36:49,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 16:36:49,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 16:36:49,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 16:36:49,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 16:36:49,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 16:36:49,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 16:36:49,010 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 16:36:49,024 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 16:36:49,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 16:36:49,027 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 16:36:49,027 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 16:36:49,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 16:36:49,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 16:36:49,029 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 16:36:49,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 16:36:49,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 16:36:49,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 16:36:49,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 16:36:49,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 16:36:49,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 16:36:49,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 16:36:49,030 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 16:36:49,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 16:36:49,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 16:36:49,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 16:36:49,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 16:36:49,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 16:36:49,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 16:36:49,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 16:36:49,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 16:36:49,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 16:36:49,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 16:36:49,032 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 16:36:49,032 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 16:36:49,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 16:36:49,032 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 16:36:49,032 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 955ba2d33e196282c8a8d7d6878108af44ab130aa14cf65292e3d1ed9a6c4e47 [2021-11-05 16:36:49,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 16:36:49,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 16:36:49,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 16:36:49,291 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 16:36:49,292 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 16:36:49,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i [2021-11-05 16:36:49,337 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63a60f3d2/a9e78706c5ef4998b352cf723dd59d38/FLAGb63f41287 [2021-11-05 16:36:49,959 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 16:36:49,959 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i [2021-11-05 16:36:49,997 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63a60f3d2/a9e78706c5ef4998b352cf723dd59d38/FLAGb63f41287 [2021-11-05 16:36:50,077 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63a60f3d2/a9e78706c5ef4998b352cf723dd59d38 [2021-11-05 16:36:50,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 16:36:50,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 16:36:50,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 16:36:50,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 16:36:50,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 16:36:50,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 04:36:50" (1/1) ... [2021-11-05 16:36:50,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d02a969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:36:50, skipping insertion in model container [2021-11-05 16:36:50,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 04:36:50" (1/1) ... [2021-11-05 16:36:50,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 16:36:50,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 16:36:51,467 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-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i[210062,210075] [2021-11-05 16:36:53,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 16:36:53,451 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 16:36:53,552 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-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i[210062,210075] [2021-11-05 16:36:53,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 16:36:54,064 INFO L208 MainTranslator]: Completed translation [2021-11-05 16:36:54,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:36:54 WrapperNode [2021-11-05 16:36:54,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 16:36:54,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 16:36:54,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 16:36:54,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 16:36:54,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:36:54" (1/1) ... [2021-11-05 16:36:54,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:36:54" (1/1) ... [2021-11-05 16:36:57,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 16:36:57,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 16:36:57,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 16:36:57,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 16:36:57,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:36:54" (1/1) ... [2021-11-05 16:36:57,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:36:54" (1/1) ... [2021-11-05 16:36:57,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:36:54" (1/1) ... [2021-11-05 16:36:57,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:36:54" (1/1) ... [2021-11-05 16:36:59,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:36:54" (1/1) ... [2021-11-05 16:36:59,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:36:54" (1/1) ... [2021-11-05 16:36:59,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:36:54" (1/1) ... [2021-11-05 16:36:59,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 16:36:59,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 16:36:59,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 16:36:59,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 16:36:59,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:36:54" (1/1) ... [2021-11-05 16:36:59,919 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 16:36:59,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 16:36:59,941 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) [2021-11-05 16:36:59,960 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 [2021-11-05 16:36:59,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-05 16:36:59,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 16:36:59,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 16:36:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 16:36:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 16:36:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 16:36:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 16:36:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 16:36:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 16:36:59,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 16:36:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 16:36:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 16:36:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-05 16:36:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 16:36:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 16:36:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 16:36:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 16:36:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 16:36:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-05 16:38:23,860 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 16:38:23,861 INFO L299 CfgBuilder]: Removed 27112 assume(true) statements. [2021-11-05 16:38:23,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 04:38:23 BoogieIcfgContainer [2021-11-05 16:38:23,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 16:38:23,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 16:38:23,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 16:38:23,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 16:38:23,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 04:36:50" (1/3) ... [2021-11-05 16:38:23,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@817996e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 04:38:23, skipping insertion in model container [2021-11-05 16:38:23,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:36:54" (2/3) ... [2021-11-05 16:38:23,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@817996e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 04:38:23, skipping insertion in model container [2021-11-05 16:38:23,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 04:38:23" (3/3) ... [2021-11-05 16:38:23,883 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i [2021-11-05 16:38:23,886 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 16:38:23,886 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-05 16:38:23,957 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 16:38:23,961 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 [2021-11-05 16:38:23,962 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-05 16:38:24,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 19176 states, 19174 states have (on average 1.2581620945029728) internal successors, (24124), 19175 states have internal predecessors, (24124), 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) [2021-11-05 16:38:24,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-05 16:38:24,126 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:38:24,126 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] [2021-11-05 16:38:24,127 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 16:38:24,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:38:24,133 INFO L85 PathProgramCache]: Analyzing trace with hash 328594732, now seen corresponding path program 1 times [2021-11-05 16:38:24,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:38:24,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462242503] [2021-11-05 16:38:24,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:38:24,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:38:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:38:25,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:38:25,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:38:25,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462242503] [2021-11-05 16:38:25,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462242503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:38:25,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:38:25,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 16:38:25,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086126045] [2021-11-05 16:38:25,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:38:25,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:38:25,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:38:25,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:38:25,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:38:25,087 INFO L87 Difference]: Start difference. First operand has 19176 states, 19174 states have (on average 1.2581620945029728) internal successors, (24124), 19175 states have internal predecessors, (24124), 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) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-11-05 16:38:27,223 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 16:38:28,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:38:28,254 INFO L93 Difference]: Finished difference Result 57253 states and 72010 transitions. [2021-11-05 16:38:28,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:38:28,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2021-11-05 16:38:28,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:38:28,396 INFO L225 Difference]: With dead ends: 57253 [2021-11-05 16:38:28,397 INFO L226 Difference]: Without dead ends: 37932 [2021-11-05 16:38:28,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.66ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:38:28,451 INFO L933 BasicCegarLoop]: 24022 mSDtfsCounter, 23745 mSDsluCounter, 23992 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2139.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23745 SdHoareTripleChecker+Valid, 48014 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 85.39ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2289.06ms IncrementalHoareTripleChecker+Time [2021-11-05 16:38:28,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23745 Valid, 48014 Invalid, 15 Unknown, 0 Unchecked, 85.39ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2289.06ms Time] [2021-11-05 16:38:28,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37932 states. [2021-11-05 16:38:29,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37932 to 37932. [2021-11-05 16:38:29,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37932 states, 37931 states have (on average 1.251298410271282) internal successors, (47463), 37931 states have internal predecessors, (47463), 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) [2021-11-05 16:38:29,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37932 states to 37932 states and 47463 transitions. [2021-11-05 16:38:29,604 INFO L78 Accepts]: Start accepts. Automaton has 37932 states and 47463 transitions. Word has length 51 [2021-11-05 16:38:29,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:38:29,605 INFO L470 AbstractCegarLoop]: Abstraction has 37932 states and 47463 transitions. [2021-11-05 16:38:29,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-11-05 16:38:29,607 INFO L276 IsEmpty]: Start isEmpty. Operand 37932 states and 47463 transitions. [2021-11-05 16:38:29,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-05 16:38:29,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:38:29,610 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] [2021-11-05 16:38:29,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 16:38:29,610 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 16:38:29,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:38:29,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1681837501, now seen corresponding path program 1 times [2021-11-05 16:38:29,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:38:29,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883511452] [2021-11-05 16:38:29,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:38:29,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:38:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:38:29,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:38:29,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:38:29,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883511452] [2021-11-05 16:38:29,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883511452] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:38:29,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:38:29,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 16:38:29,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107873306] [2021-11-05 16:38:29,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:38:29,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 16:38:29,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:38:29,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 16:38:29,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 16:38:29,986 INFO L87 Difference]: Start difference. First operand 37932 states and 47463 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2021-11-05 16:38:31,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:38:31,423 INFO L93 Difference]: Finished difference Result 75741 states and 94789 transitions. [2021-11-05 16:38:31,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 16:38:31,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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 57 [2021-11-05 16:38:31,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:38:31,568 INFO L225 Difference]: With dead ends: 75741 [2021-11-05 16:38:31,568 INFO L226 Difference]: Without dead ends: 75731 [2021-11-05 16:38:31,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.01ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 16:38:31,597 INFO L933 BasicCegarLoop]: 23853 mSDtfsCounter, 23843 mSDsluCounter, 71422 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 227.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23843 SdHoareTripleChecker+Valid, 95275 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 84.76ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 260.56ms IncrementalHoareTripleChecker+Time [2021-11-05 16:38:31,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23843 Valid, 95275 Invalid, 89 Unknown, 0 Unchecked, 84.76ms Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 260.56ms Time] [2021-11-05 16:38:31,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75731 states. [2021-11-05 16:38:32,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75731 to 75699. [2021-11-05 16:38:33,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75699 states, 75698 states have (on average 1.2515125895003831) internal successors, (94737), 75698 states have internal predecessors, (94737), 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) [2021-11-05 16:38:33,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75699 states to 75699 states and 94737 transitions. [2021-11-05 16:38:33,173 INFO L78 Accepts]: Start accepts. Automaton has 75699 states and 94737 transitions. Word has length 57 [2021-11-05 16:38:33,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:38:33,175 INFO L470 AbstractCegarLoop]: Abstraction has 75699 states and 94737 transitions. [2021-11-05 16:38:33,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2021-11-05 16:38:33,175 INFO L276 IsEmpty]: Start isEmpty. Operand 75699 states and 94737 transitions. [2021-11-05 16:38:33,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-05 16:38:33,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:38:33,421 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:38:33,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 16:38:33,422 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 16:38:33,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:38:33,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1537407852, now seen corresponding path program 1 times [2021-11-05 16:38:33,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:38:33,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613029346] [2021-11-05 16:38:33,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:38:33,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:38:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:38:33,779 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 16:38:33,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:38:33,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613029346] [2021-11-05 16:38:33,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613029346] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:38:33,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:38:33,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 16:38:33,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782982660] [2021-11-05 16:38:33,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:38:33,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:38:33,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:38:33,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:38:33,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:38:33,786 INFO L87 Difference]: Start difference. First operand 75699 states and 94737 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2021-11-05 16:38:35,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:38:35,932 INFO L93 Difference]: Finished difference Result 201337 states and 251825 transitions. [2021-11-05 16:38:35,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:38:35,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 176 [2021-11-05 16:38:35,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:38:36,280 INFO L225 Difference]: With dead ends: 201337 [2021-11-05 16:38:36,281 INFO L226 Difference]: Without dead ends: 125761 [2021-11-05 16:38:36,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.53ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:38:36,447 INFO L933 BasicCegarLoop]: 23888 mSDtfsCounter, 15792 mSDsluCounter, 23663 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 217.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15792 SdHoareTripleChecker+Valid, 47551 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.66ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 252.90ms IncrementalHoareTripleChecker+Time [2021-11-05 16:38:36,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15792 Valid, 47551 Invalid, 77 Unknown, 0 Unchecked, 36.66ms Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 252.90ms Time] [2021-11-05 16:38:36,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125761 states. [2021-11-05 16:38:39,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125761 to 125673. [2021-11-05 16:38:39,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125673 states, 125672 states have (on average 1.2502785027691132) internal successors, (157125), 125672 states have internal predecessors, (157125), 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) [2021-11-05 16:38:39,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125673 states to 125673 states and 157125 transitions. [2021-11-05 16:38:39,521 INFO L78 Accepts]: Start accepts. Automaton has 125673 states and 157125 transitions. Word has length 176 [2021-11-05 16:38:39,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:38:39,523 INFO L470 AbstractCegarLoop]: Abstraction has 125673 states and 157125 transitions. [2021-11-05 16:38:39,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2021-11-05 16:38:39,524 INFO L276 IsEmpty]: Start isEmpty. Operand 125673 states and 157125 transitions. [2021-11-05 16:38:39,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-05 16:38:39,588 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:38:39,588 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:38:39,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 16:38:39,589 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 16:38:39,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:38:39,589 INFO L85 PathProgramCache]: Analyzing trace with hash 551573949, now seen corresponding path program 1 times [2021-11-05 16:38:39,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:38:39,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117021103] [2021-11-05 16:38:39,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:38:39,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:38:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:38:39,942 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-05 16:38:39,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:38:39,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117021103] [2021-11-05 16:38:39,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117021103] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:38:39,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:38:39,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 16:38:39,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070858031] [2021-11-05 16:38:39,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:38:39,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:38:39,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:38:39,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:38:39,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:38:39,946 INFO L87 Difference]: Start difference. First operand 125673 states and 157125 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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) [2021-11-05 16:38:42,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:38:42,686 INFO L93 Difference]: Finished difference Result 251227 states and 314121 transitions. [2021-11-05 16:38:42,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:38:42,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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 217 [2021-11-05 16:38:42,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:38:42,950 INFO L225 Difference]: With dead ends: 251227 [2021-11-05 16:38:42,950 INFO L226 Difference]: Without dead ends: 125677 [2021-11-05 16:38:43,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.03ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:38:43,113 INFO L933 BasicCegarLoop]: 23874 mSDtfsCounter, 0 mSDsluCounter, 23869 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47743 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.63ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.80ms IncrementalHoareTripleChecker+Time [2021-11-05 16:38:43,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 47743 Invalid, 6 Unknown, 0 Unchecked, 22.63ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 17.80ms Time] [2021-11-05 16:38:43,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125677 states. [2021-11-05 16:38:45,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125677 to 125677. [2021-11-05 16:38:45,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125677 states, 125676 states have (on average 1.2502705369362488) internal successors, (157129), 125676 states have internal predecessors, (157129), 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) [2021-11-05 16:38:45,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125677 states to 125677 states and 157129 transitions. [2021-11-05 16:38:45,824 INFO L78 Accepts]: Start accepts. Automaton has 125677 states and 157129 transitions. Word has length 217 [2021-11-05 16:38:45,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:38:45,824 INFO L470 AbstractCegarLoop]: Abstraction has 125677 states and 157129 transitions. [2021-11-05 16:38:45,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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) [2021-11-05 16:38:45,825 INFO L276 IsEmpty]: Start isEmpty. Operand 125677 states and 157129 transitions. [2021-11-05 16:38:45,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-05 16:38:45,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:38:45,873 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:38:45,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 16:38:45,873 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 16:38:45,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:38:45,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1315134725, now seen corresponding path program 1 times [2021-11-05 16:38:45,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:38:45,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831352926] [2021-11-05 16:38:45,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:38:45,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:38:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:38:46,507 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-05 16:38:46,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:38:46,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831352926] [2021-11-05 16:38:46,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831352926] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:38:46,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:38:46,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 16:38:46,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734018394] [2021-11-05 16:38:46,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:38:46,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 16:38:46,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:38:46,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 16:38:46,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 16:38:46,510 INFO L87 Difference]: Start difference. First operand 125677 states and 157129 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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) [2021-11-05 16:38:48,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:38:48,613 INFO L93 Difference]: Finished difference Result 251243 states and 314137 transitions. [2021-11-05 16:38:48,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 16:38:48,614 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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 217 [2021-11-05 16:38:48,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:38:48,856 INFO L225 Difference]: With dead ends: 251243 [2021-11-05 16:38:48,857 INFO L226 Difference]: Without dead ends: 125689 [2021-11-05 16:38:49,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.72ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 16:38:49,077 INFO L933 BasicCegarLoop]: 23872 mSDtfsCounter, 3 mSDsluCounter, 47737 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 71609 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.61ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.04ms IncrementalHoareTripleChecker+Time [2021-11-05 16:38:49,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 71609 Invalid, 15 Unknown, 0 Unchecked, 26.61ms Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 24.04ms Time] [2021-11-05 16:38:49,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125689 states.