./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.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 4035b79a2162ba317b65ff4b4b50beff318d26f8217214f4a55e9e0e820898d1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 02:36:21,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:36:21,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:36:21,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:36:21,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:36:21,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:36:21,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:36:21,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:36:21,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:36:21,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:36:21,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:36:21,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:36:21,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:36:21,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:36:21,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:36:21,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:36:21,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:36:21,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:36:21,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:36:21,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:36:21,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:36:21,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:36:21,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:36:21,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:36:21,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:36:21,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:36:21,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:36:21,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:36:21,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:36:21,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:36:21,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:36:21,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:36:21,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:36:21,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:36:21,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:36:21,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:36:21,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:36:21,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:36:21,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:36:21,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:36:21,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:36:21,560 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 02:36:21,597 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:36:21,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:36:21,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:36:21,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:36:21,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 02:36:21,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 02:36:21,600 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 02:36:21,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:36:21,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:36:21,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:36:21,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:36:21,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:36:21,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:36:21,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:36:21,602 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:36:21,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:36:21,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:36:21,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 02:36:21,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:36:21,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:36:21,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:36:21,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:36:21,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:36:21,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 02:36:21,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:36:21,604 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 02:36:21,605 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 02:36:21,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:36:21,605 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:36:21,605 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4035b79a2162ba317b65ff4b4b50beff318d26f8217214f4a55e9e0e820898d1 [2021-11-23 02:36:21,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:36:21,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:36:21,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:36:21,895 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:36:21,896 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:36:21,897 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i [2021-11-23 02:36:21,951 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/188abfd6b/96ab37fa272341ad9664a9f9a80a29ea/FLAG76ede0dab [2021-11-23 02:36:22,727 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:36:22,727 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i [2021-11-23 02:36:22,782 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/188abfd6b/96ab37fa272341ad9664a9f9a80a29ea/FLAG76ede0dab [2021-11-23 02:36:22,938 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/188abfd6b/96ab37fa272341ad9664a9f9a80a29ea [2021-11-23 02:36:22,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:36:22,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:36:22,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:36:22,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:36:22,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:36:22,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:36:22" (1/1) ... [2021-11-23 02:36:22,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e0d11cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:36:22, skipping insertion in model container [2021-11-23 02:36:22,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:36:22" (1/1) ... [2021-11-23 02:36:22,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:36:23,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:36:27,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387172,387185] [2021-11-23 02:36:27,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387338,387351] [2021-11-23 02:36:27,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387502,387515] [2021-11-23 02:36:27,115 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387667,387680] [2021-11-23 02:36:27,142 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:36:27,171 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:36:27,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387172,387185] [2021-11-23 02:36:27,527 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387338,387351] [2021-11-23 02:36:27,528 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387502,387515] [2021-11-23 02:36:27,532 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387667,387680] [2021-11-23 02:36:27,538 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:36:27,682 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:36:27,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:36:27 WrapperNode [2021-11-23 02:36:27,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:36:27,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:36:27,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:36:27,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:36:27,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:36:27" (1/1) ... [2021-11-23 02:36:27,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:36:27" (1/1) ... [2021-11-23 02:36:31,028 INFO L137 Inliner]: procedures = 518, calls = 3478, calls flagged for inlining = 1263, calls inlined = 13269, statements flattened = 159938 [2021-11-23 02:36:31,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:36:31,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:36:31,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:36:31,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:36:31,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:36:27" (1/1) ... [2021-11-23 02:36:31,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:36:27" (1/1) ... [2021-11-23 02:36:31,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:36:27" (1/1) ... [2021-11-23 02:36:31,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:36:27" (1/1) ... [2021-11-23 02:36:33,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:36:27" (1/1) ... [2021-11-23 02:36:34,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:36:27" (1/1) ... [2021-11-23 02:36:34,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:36:27" (1/1) ... [2021-11-23 02:36:35,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:36:35,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:36:35,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:36:35,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:36:35,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:36:27" (1/1) ... [2021-11-23 02:36:35,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:36:35,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 02:36:35,080 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) [2021-11-23 02:36:35,103 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 [2021-11-23 02:36:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 02:36:35,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:36:35,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:36:35,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:36:35,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:36:35,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:36:35,121 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2021-11-23 02:36:35,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:36:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:36:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:36:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:36:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:36:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:36:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:36:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:36:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:36:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:36:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:36:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:36:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-23 02:36:36,389 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:36:36,391 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:37:30,471 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-23 02:37:30,471 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res#1 := 0; [2021-11-23 02:37:30,471 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-23 02:37:30,471 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#1: ldv_switch_2_#res#1 := 0; [2021-11-23 02:37:30,472 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res#1 := 0; [2021-11-23 02:37:30,472 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#1: ldv_switch_4_#res#1 := 0; [2021-11-23 02:37:30,472 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res#1 := 0; [2021-11-23 02:37:30,473 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res#1 := 0; [2021-11-23 02:37:30,473 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res#1 := 0; [2021-11-23 02:37:30,473 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res#1 := 0; [2021-11-23 02:37:30,473 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res#1 := 0; [2021-11-23 02:37:30,473 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-23 02:37:30,473 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-23 02:37:30,474 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#1: ldv_switch_3_#res#1 := 0; [2021-11-23 02:37:30,474 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res#1 := 0; [2021-11-23 02:37:30,478 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 02:37:30,491 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:37:30,595 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:37:30,596 INFO L301 CfgBuilder]: Removed 1033 assume(true) statements. [2021-11-23 02:37:30,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:37:30 BoogieIcfgContainer [2021-11-23 02:37:30,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:37:30,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:37:30,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:37:30,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:37:30,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:36:22" (1/3) ... [2021-11-23 02:37:30,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ff4c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:37:30, skipping insertion in model container [2021-11-23 02:37:30,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:36:27" (2/3) ... [2021-11-23 02:37:30,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ff4c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:37:30, skipping insertion in model container [2021-11-23 02:37:30,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:37:30" (3/3) ... [2021-11-23 02:37:30,639 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i [2021-11-23 02:37:30,644 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:37:30,645 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 429 error locations. [2021-11-23 02:37:30,794 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:37:30,815 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 [2021-11-23 02:37:30,816 INFO L340 AbstractCegarLoop]: Starting to check reachability of 429 error locations. [2021-11-23 02:37:31,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 31042 states, 30613 states have (on average 1.3918270016006271) internal successors, (42608), 31041 states have internal predecessors, (42608), 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) [2021-11-23 02:37:31,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-23 02:37:31,225 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:37:31,226 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:37:31,227 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 426 more)] === [2021-11-23 02:37:31,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:37:31,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1098425335, now seen corresponding path program 1 times [2021-11-23 02:37:31,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:37:31,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981584504] [2021-11-23 02:37:31,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:37:31,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:37:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:37:31,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:37:31,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:37:31,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981584504] [2021-11-23 02:37:31,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981584504] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:37:31,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:37:31,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:37:31,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403628272] [2021-11-23 02:37:31,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:37:31,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:37:31,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:37:31,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:37:31,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:37:32,038 INFO L87 Difference]: Start difference. First operand has 31042 states, 30613 states have (on average 1.3918270016006271) internal successors, (42608), 31041 states have internal predecessors, (42608), 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 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2021-11-23 02:37:34,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:37:34,427 INFO L93 Difference]: Finished difference Result 88996 states and 122424 transitions. [2021-11-23 02:37:34,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:37:34,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 [2021-11-23 02:37:34,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:37:34,722 INFO L225 Difference]: With dead ends: 88996 [2021-11-23 02:37:34,722 INFO L226 Difference]: Without dead ends: 57584 [2021-11-23 02:37:34,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:37:34,826 INFO L933 BasicCegarLoop]: 36120 mSDtfsCounter, 35342 mSDsluCounter, 36012 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35342 SdHoareTripleChecker+Valid, 72132 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:37:34,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35342 Valid, 72132 Invalid, 54 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [11 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:37:34,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57584 states. [2021-11-23 02:37:36,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57584 to 56756. [2021-11-23 02:37:36,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56756 states, 56327 states have (on average 1.2320734283736041) internal successors, (69399), 56755 states have internal predecessors, (69399), 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) [2021-11-23 02:37:36,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56756 states to 56756 states and 69399 transitions. [2021-11-23 02:37:36,839 INFO L78 Accepts]: Start accepts. Automaton has 56756 states and 69399 transitions. Word has length 156 [2021-11-23 02:37:36,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:37:36,843 INFO L470 AbstractCegarLoop]: Abstraction has 56756 states and 69399 transitions. [2021-11-23 02:37:36,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2021-11-23 02:37:36,845 INFO L276 IsEmpty]: Start isEmpty. Operand 56756 states and 69399 transitions. [2021-11-23 02:37:36,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-23 02:37:36,858 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:37:36,858 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:37:36,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:37:36,859 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr150ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 426 more)] === [2021-11-23 02:37:36,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:37:36,861 INFO L85 PathProgramCache]: Analyzing trace with hash 794948861, now seen corresponding path program 1 times [2021-11-23 02:37:36,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:37:36,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007027777] [2021-11-23 02:37:36,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:37:36,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:37:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:37:37,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:37:37,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:37:37,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007027777] [2021-11-23 02:37:37,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007027777] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:37:37,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:37:37,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:37:37,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344545758] [2021-11-23 02:37:37,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:37:37,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:37:37,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:37:37,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:37:37,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:37:37,236 INFO L87 Difference]: Start difference. First operand 56756 states and 69399 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2021-11-23 02:37:39,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:37:39,221 INFO L93 Difference]: Finished difference Result 120538 states and 147076 transitions. [2021-11-23 02:37:39,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:37:39,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 162 [2021-11-23 02:37:39,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:37:39,446 INFO L225 Difference]: With dead ends: 120538 [2021-11-23 02:37:39,446 INFO L226 Difference]: Without dead ends: 64139 [2021-11-23 02:37:39,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:37:39,584 INFO L933 BasicCegarLoop]: 35202 mSDtfsCounter, 21653 mSDsluCounter, 35146 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21653 SdHoareTripleChecker+Valid, 70348 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:37:39,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21653 Valid, 70348 Invalid, 98 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:37:39,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64139 states. [2021-11-23 02:37:41,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64139 to 63499. [2021-11-23 02:37:41,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63499 states, 63070 states have (on average 1.2317107975265578) internal successors, (77684), 63498 states have internal predecessors, (77684), 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) [2021-11-23 02:37:41,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63499 states to 63499 states and 77684 transitions. [2021-11-23 02:37:41,605 INFO L78 Accepts]: Start accepts. Automaton has 63499 states and 77684 transitions. Word has length 162 [2021-11-23 02:37:41,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:37:41,607 INFO L470 AbstractCegarLoop]: Abstraction has 63499 states and 77684 transitions. [2021-11-23 02:37:41,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2021-11-23 02:37:41,608 INFO L276 IsEmpty]: Start isEmpty. Operand 63499 states and 77684 transitions. [2021-11-23 02:37:41,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-23 02:37:41,612 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:37:41,613 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:37:41,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:37:41,614 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr249ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 426 more)] === [2021-11-23 02:37:41,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:37:41,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1114491418, now seen corresponding path program 1 times [2021-11-23 02:37:41,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:37:41,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521666142] [2021-11-23 02:37:41,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:37:41,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:37:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:37:42,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:37:42,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:37:42,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521666142] [2021-11-23 02:37:42,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521666142] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:37:42,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:37:42,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:37:42,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415041126] [2021-11-23 02:37:42,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:37:42,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:37:42,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:37:42,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:37:42,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:37:42,105 INFO L87 Difference]: Start difference. First operand 63499 states and 77684 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-11-23 02:37:44,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:37:44,203 INFO L93 Difference]: Finished difference Result 156425 states and 191208 transitions. [2021-11-23 02:37:44,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:37:44,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 163 [2021-11-23 02:37:44,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:37:44,742 INFO L225 Difference]: With dead ends: 156425 [2021-11-23 02:37:44,743 INFO L226 Difference]: Without dead ends: 93283 [2021-11-23 02:37:44,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:37:44,927 INFO L933 BasicCegarLoop]: 35202 mSDtfsCounter, 28123 mSDsluCounter, 35146 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28123 SdHoareTripleChecker+Valid, 70348 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:37:44,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28123 Valid, 70348 Invalid, 98 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:37:45,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93283 states. [2021-11-23 02:37:46,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93283 to 92493. [2021-11-23 02:37:47,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92493 states, 92064 states have (on average 1.2322188912061174) internal successors, (113443), 92492 states have internal predecessors, (113443), 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) [2021-11-23 02:37:47,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92493 states to 92493 states and 113443 transitions. [2021-11-23 02:37:47,498 INFO L78 Accepts]: Start accepts. Automaton has 92493 states and 113443 transitions. Word has length 163 [2021-11-23 02:37:47,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:37:47,499 INFO L470 AbstractCegarLoop]: Abstraction has 92493 states and 113443 transitions. [2021-11-23 02:37:47,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-11-23 02:37:47,500 INFO L276 IsEmpty]: Start isEmpty. Operand 92493 states and 113443 transitions. [2021-11-23 02:37:47,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-23 02:37:47,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:37:47,505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:37:47,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:37:47,505 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 426 more)] === [2021-11-23 02:37:47,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:37:47,506 INFO L85 PathProgramCache]: Analyzing trace with hash -962036647, now seen corresponding path program 1 times [2021-11-23 02:37:47,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:37:47,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852169331] [2021-11-23 02:37:47,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:37:47,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:37:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:37:47,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:37:47,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:37:47,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852169331] [2021-11-23 02:37:47,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852169331] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:37:47,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:37:47,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:37:47,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190595375] [2021-11-23 02:37:47,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:37:47,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:37:47,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:37:47,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:37:47,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:37:47,781 INFO L87 Difference]: Start difference. First operand 92493 states and 113443 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2021-11-23 02:37:50,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:37:50,577 INFO L93 Difference]: Finished difference Result 230804 states and 282814 transitions. [2021-11-23 02:37:50,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:37:50,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 167 [2021-11-23 02:37:50,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:37:50,938 INFO L225 Difference]: With dead ends: 230804 [2021-11-23 02:37:50,938 INFO L226 Difference]: Without dead ends: 138668 [2021-11-23 02:37:51,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:37:51,171 INFO L933 BasicCegarLoop]: 35203 mSDtfsCounter, 26294 mSDsluCounter, 35146 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26294 SdHoareTripleChecker+Valid, 70349 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:37:51,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26294 Valid, 70349 Invalid, 98 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:37:51,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138668 states. [2021-11-23 02:37:54,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138668 to 137902. [2021-11-23 02:37:54,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137902 states, 137473 states have (on average 1.2313836171466397) internal successors, (169282), 137901 states have internal predecessors, (169282), 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) [2021-11-23 02:37:54,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137902 states to 137902 states and 169282 transitions. [2021-11-23 02:37:54,500 INFO L78 Accepts]: Start accepts. Automaton has 137902 states and 169282 transitions. Word has length 167 [2021-11-23 02:37:54,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:37:54,501 INFO L470 AbstractCegarLoop]: Abstraction has 137902 states and 169282 transitions. [2021-11-23 02:37:54,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2021-11-23 02:37:54,501 INFO L276 IsEmpty]: Start isEmpty. Operand 137902 states and 169282 transitions. [2021-11-23 02:37:54,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-23 02:37:54,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:37:54,509 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:37:54,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:37:54,510 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 426 more)] === [2021-11-23 02:37:54,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:37:54,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1777240732, now seen corresponding path program 1 times [2021-11-23 02:37:54,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:37:54,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350385699] [2021-11-23 02:37:54,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:37:54,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:37:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:37:55,138 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:37:55,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:37:55,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350385699] [2021-11-23 02:37:55,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350385699] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:37:55,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:37:55,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:37:55,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76911569] [2021-11-23 02:37:55,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:37:55,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:37:55,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:37:55,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:37:55,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:37:55,146 INFO L87 Difference]: Start difference. First operand 137902 states and 169282 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2021-11-23 02:37:59,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:37:59,899 INFO L93 Difference]: Finished difference Result 402099 states and 493820 transitions. [2021-11-23 02:37:59,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:37:59,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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 195 [2021-11-23 02:37:59,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:38:01,000 INFO L225 Difference]: With dead ends: 402099 [2021-11-23 02:38:01,000 INFO L226 Difference]: Without dead ends: 269586 [2021-11-23 02:38:01,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:38:01,263 INFO L933 BasicCegarLoop]: 41465 mSDtfsCounter, 34584 mSDsluCounter, 35181 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34584 SdHoareTripleChecker+Valid, 76646 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:38:01,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34584 Valid, 76646 Invalid, 50 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:38:01,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269586 states.