./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-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/bin/uautomizer-w2VwFs6gM0 --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 d291badf6e321259e0b1b1625d2ed48867e61016cda7885a720272c3e12df877 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:04:19,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:04:19,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:04:19,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:04:19,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:04:19,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:04:19,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:04:19,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:04:19,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:04:19,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:04:19,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:04:19,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:04:19,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:04:19,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:04:19,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:04:19,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:04:19,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:04:19,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:04:19,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:04:19,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:04:19,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:04:19,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:04:19,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:04:19,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:04:19,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:04:19,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:04:19,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:04:19,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:04:19,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:04:19,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:04:19,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:04:19,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:04:19,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:04:19,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:04:19,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:04:19,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:04:19,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:04:19,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:04:19,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:04:19,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:04:19,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:04:19,724 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 15:04:19,775 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:04:19,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:04:19,776 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:04:19,776 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:04:19,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:04:19,784 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:04:19,784 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:04:19,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:04:19,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:04:19,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:04:19,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:04:19,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:04:19,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:04:19,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:04:19,787 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:04:19,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:04:19,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:04:19,788 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:04:19,788 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:04:19,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:04:19,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:04:19,789 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:04:19,789 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:04:19,789 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:04:19,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:04:19,789 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:04:19,790 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:04:19,790 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:04:19,790 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:04:19,792 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d291badf6e321259e0b1b1625d2ed48867e61016cda7885a720272c3e12df877 [2021-11-22 15:04:20,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:04:20,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:04:20,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:04:20,110 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:04:20,112 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:04:20,113 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2021-11-22 15:04:20,193 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/bin/uautomizer-w2VwFs6gM0/data/012106038/e03691ad80224faa84835bf2c5d11c89/FLAGb3b693080 [2021-11-22 15:04:21,262 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:04:21,263 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2021-11-22 15:04:21,333 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/bin/uautomizer-w2VwFs6gM0/data/012106038/e03691ad80224faa84835bf2c5d11c89/FLAGb3b693080 [2021-11-22 15:04:21,562 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/bin/uautomizer-w2VwFs6gM0/data/012106038/e03691ad80224faa84835bf2c5d11c89 [2021-11-22 15:04:21,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:04:21,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:04:21,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:04:21,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:04:21,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:04:21,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:04:21" (1/1) ... [2021-11-22 15:04:21,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f8cbf15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:04:21, skipping insertion in model container [2021-11-22 15:04:21,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:04:21" (1/1) ... [2021-11-22 15:04:21,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:04:21,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:04:26,285 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[462737,462750] [2021-11-22 15:04:26,288 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[462906,462919] [2021-11-22 15:04:26,289 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463073,463086] [2021-11-22 15:04:26,289 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463241,463254] [2021-11-22 15:04:26,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:04:26,330 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:04:26,854 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[462737,462750] [2021-11-22 15:04:26,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[462906,462919] [2021-11-22 15:04:26,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463073,463086] [2021-11-22 15:04:26,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463241,463254] [2021-11-22 15:04:26,864 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:04:27,102 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:04:27,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:04:27 WrapperNode [2021-11-22 15:04:27,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:04:27,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:04:27,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:04:27,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:04:27,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:04:27" (1/1) ... [2021-11-22 15:04:27,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:04:27" (1/1) ... [2021-11-22 15:04:28,029 INFO L137 Inliner]: procedures = 522, calls = 2018, calls flagged for inlining = 1080, calls inlined = 2571, statements flattened = 25695 [2021-11-22 15:04:28,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:04:28,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:04:28,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:04:28,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:04:28,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:04:27" (1/1) ... [2021-11-22 15:04:28,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:04:27" (1/1) ... [2021-11-22 15:04:28,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:04:27" (1/1) ... [2021-11-22 15:04:28,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:04:27" (1/1) ... [2021-11-22 15:04:28,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:04:27" (1/1) ... [2021-11-22 15:04:28,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:04:27" (1/1) ... [2021-11-22 15:04:29,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:04:27" (1/1) ... [2021-11-22 15:04:29,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:04:29,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:04:29,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:04:29,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:04:29,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:04:27" (1/1) ... [2021-11-22 15:04:29,134 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:04:29,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:04:29,160 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:04:29,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e7fc6e-a65f-42c4-a25e-9eff3c2fa846/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:04:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-22 15:04:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-22 15:04:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:04:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 15:04:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 15:04:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 15:04:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_release [2021-11-22 15:04:29,213 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_release [2021-11-22 15:04:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 15:04:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_commit_done [2021-11-22 15:04:29,213 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_commit_done [2021-11-22 15:04:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:04:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 15:04:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-22 15:04:29,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-22 15:04:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:04:29,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:04:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 15:04:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 15:04:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:04:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 15:04:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 15:04:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_call_done [2021-11-22 15:04:29,215 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_call_done [2021-11-22 15:04:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_release [2021-11-22 15:04:29,216 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_release [2021-11-22 15:04:29,216 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_call_done [2021-11-22 15:04:29,216 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_call_done [2021-11-22 15:04:29,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 15:04:29,216 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-11-22 15:04:29,216 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_release [2021-11-22 15:04:29,216 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_release [2021-11-22 15:04:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:04:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-22 15:04:29,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-22 15:04:30,569 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:04:30,571 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:04:39,817 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-22 15:04:39,817 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-22 15:04:39,818 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res#1 := 0; [2021-11-22 15:04:39,819 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-22 15:04:39,819 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-22 15:04:39,820 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-22 15:04:39,830 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:04:39,878 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:04:39,878 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-22 15:04:39,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:04:39 BoogieIcfgContainer [2021-11-22 15:04:39,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:04:39,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:04:39,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:04:39,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:04:39,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:04:21" (1/3) ... [2021-11-22 15:04:39,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@790acecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:04:39, skipping insertion in model container [2021-11-22 15:04:39,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:04:27" (2/3) ... [2021-11-22 15:04:39,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@790acecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:04:39, skipping insertion in model container [2021-11-22 15:04:39,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:04:39" (3/3) ... [2021-11-22 15:04:39,896 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2021-11-22 15:04:39,902 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:04:39,902 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 91 error locations. [2021-11-22 15:04:39,969 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:04:39,976 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 [2021-11-22 15:04:39,976 INFO L340 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2021-11-22 15:04:40,139 INFO L276 IsEmpty]: Start isEmpty. Operand has 5075 states, 4954 states have (on average 1.302785627775535) internal successors, (6454), 5050 states have internal predecessors, (6454), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 18 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-22 15:04:40,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-22 15:04:40,155 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:04:40,156 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] [2021-11-22 15:04:40,156 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 88 more)] === [2021-11-22 15:04:40,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:04:40,163 INFO L85 PathProgramCache]: Analyzing trace with hash 2071781917, now seen corresponding path program 1 times [2021-11-22 15:04:40,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:04:40,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846477888] [2021-11-22 15:04:40,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:04:40,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:04:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:04:40,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:04:40,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:04:40,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846477888] [2021-11-22 15:04:40,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846477888] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:04:40,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:04:40,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:04:40,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964035688] [2021-11-22 15:04:40,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:04:40,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:04:40,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:04:40,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:04:40,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:04:40,889 INFO L87 Difference]: Start difference. First operand has 5075 states, 4954 states have (on average 1.302785627775535) internal successors, (6454), 5050 states have internal predecessors, (6454), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 18 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2021-11-22 15:04:41,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:04:41,614 INFO L93 Difference]: Finished difference Result 14245 states and 18284 transitions. [2021-11-22 15:04:41,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:04:41,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 118 [2021-11-22 15:04:41,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:04:41,709 INFO L225 Difference]: With dead ends: 14245 [2021-11-22 15:04:41,709 INFO L226 Difference]: Without dead ends: 8947 [2021-11-22 15:04:41,736 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 [2021-11-22 15:04:41,741 INFO L933 BasicCegarLoop]: 6386 mSDtfsCounter, 5645 mSDsluCounter, 6334 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5645 SdHoareTripleChecker+Valid, 12720 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:04:41,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5645 Valid, 12720 Invalid, 44 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:04:41,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8947 states. [2021-11-22 15:04:42,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8947 to 8867. [2021-11-22 15:04:42,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8867 states, 8716 states have (on average 1.2360027535566773) internal successors, (10773), 8818 states have internal predecessors, (10773), 44 states have call successors, (44), 16 states have call predecessors, (44), 16 states have return successors, (44), 36 states have call predecessors, (44), 44 states have call successors, (44) [2021-11-22 15:04:42,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8867 states to 8867 states and 10861 transitions. [2021-11-22 15:04:42,193 INFO L78 Accepts]: Start accepts. Automaton has 8867 states and 10861 transitions. Word has length 118 [2021-11-22 15:04:42,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:04:42,194 INFO L470 AbstractCegarLoop]: Abstraction has 8867 states and 10861 transitions. [2021-11-22 15:04:42,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2021-11-22 15:04:42,197 INFO L276 IsEmpty]: Start isEmpty. Operand 8867 states and 10861 transitions. [2021-11-22 15:04:42,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-22 15:04:42,206 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:04:42,206 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] [2021-11-22 15:04:42,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:04:42,207 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 88 more)] === [2021-11-22 15:04:42,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:04:42,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1115241053, now seen corresponding path program 1 times [2021-11-22 15:04:42,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:04:42,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384848015] [2021-11-22 15:04:42,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:04:42,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:04:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:04:42,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:04:42,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:04:42,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384848015] [2021-11-22 15:04:42,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384848015] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:04:42,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:04:42,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:04:42,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562684045] [2021-11-22 15:04:42,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:04:42,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:04:42,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:04:42,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:04:42,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:04:42,428 INFO L87 Difference]: Start difference. First operand 8867 states and 10861 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:04:43,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:04:43,186 INFO L93 Difference]: Finished difference Result 21793 states and 26689 transitions. [2021-11-22 15:04:43,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:04:43,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-22 15:04:43,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:04:43,273 INFO L225 Difference]: With dead ends: 21793 [2021-11-22 15:04:43,274 INFO L226 Difference]: Without dead ends: 13203 [2021-11-22 15:04:43,298 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 [2021-11-22 15:04:43,299 INFO L933 BasicCegarLoop]: 5760 mSDtfsCounter, 5336 mSDsluCounter, 5702 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5336 SdHoareTripleChecker+Valid, 11462 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:04:43,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5336 Valid, 11462 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:04:43,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13203 states. [2021-11-22 15:04:43,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13203 to 12901. [2021-11-22 15:04:43,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12901 states, 12724 states have (on average 1.2375039295818926) internal successors, (15746), 12832 states have internal predecessors, (15746), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 50 states have call predecessors, (62), 62 states have call successors, (62) [2021-11-22 15:04:43,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12901 states to 12901 states and 15870 transitions. [2021-11-22 15:04:43,865 INFO L78 Accepts]: Start accepts. Automaton has 12901 states and 15870 transitions. Word has length 125 [2021-11-22 15:04:43,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:04:43,868 INFO L470 AbstractCegarLoop]: Abstraction has 12901 states and 15870 transitions. [2021-11-22 15:04:43,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:04:43,869 INFO L276 IsEmpty]: Start isEmpty. Operand 12901 states and 15870 transitions. [2021-11-22 15:04:43,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-22 15:04:43,878 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:04:43,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:04:43,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 15:04:43,879 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 88 more)] === [2021-11-22 15:04:43,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:04:43,880 INFO L85 PathProgramCache]: Analyzing trace with hash -997043680, now seen corresponding path program 1 times [2021-11-22 15:04:43,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:04:43,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167627562] [2021-11-22 15:04:43,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:04:43,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:04:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:04:44,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:04:44,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:04:44,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167627562] [2021-11-22 15:04:44,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167627562] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:04:44,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:04:44,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:04:44,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830436532] [2021-11-22 15:04:44,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:04:44,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:04:44,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:04:44,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:04:44,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:04:44,105 INFO L87 Difference]: Start difference. First operand 12901 states and 15870 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:04:44,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:04:44,937 INFO L93 Difference]: Finished difference Result 33797 states and 41596 transitions. [2021-11-22 15:04:44,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:04:44,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2021-11-22 15:04:44,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:04:45,042 INFO L225 Difference]: With dead ends: 33797 [2021-11-22 15:04:45,042 INFO L226 Difference]: Without dead ends: 21173 [2021-11-22 15:04:45,071 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 [2021-11-22 15:04:45,076 INFO L933 BasicCegarLoop]: 5835 mSDtfsCounter, 5295 mSDsluCounter, 5701 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5295 SdHoareTripleChecker+Valid, 11536 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:04:45,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5295 Valid, 11536 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:04:45,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21173 states. [2021-11-22 15:04:45,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21173 to 20873. [2021-11-22 15:04:45,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20873 states, 20644 states have (on average 1.2385681069560164) internal successors, (25569), 20764 states have internal predecessors, (25569), 98 states have call successors, (98), 40 states have call predecessors, (98), 40 states have return successors, (98), 78 states have call predecessors, (98), 98 states have call successors, (98) [2021-11-22 15:04:45,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20873 states to 20873 states and 25765 transitions. [2021-11-22 15:04:45,786 INFO L78 Accepts]: Start accepts. Automaton has 20873 states and 25765 transitions. Word has length 127 [2021-11-22 15:04:45,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:04:45,787 INFO L470 AbstractCegarLoop]: Abstraction has 20873 states and 25765 transitions. [2021-11-22 15:04:45,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:04:45,787 INFO L276 IsEmpty]: Start isEmpty. Operand 20873 states and 25765 transitions. [2021-11-22 15:04:45,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-22 15:04:45,790 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:04:45,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:04:45,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 15:04:45,791 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 88 more)] === [2021-11-22 15:04:45,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:04:45,792 INFO L85 PathProgramCache]: Analyzing trace with hash 195302963, now seen corresponding path program 1 times [2021-11-22 15:04:45,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:04:45,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680194134] [2021-11-22 15:04:45,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:04:45,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:04:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:04:45,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:04:45,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:04:45,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680194134] [2021-11-22 15:04:45,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680194134] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:04:45,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:04:45,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:04:45,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276217080] [2021-11-22 15:04:45,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:04:45,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:04:45,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:04:45,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:04:45,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:04:45,957 INFO L87 Difference]: Start difference. First operand 20873 states and 25765 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:04:46,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:04:46,980 INFO L93 Difference]: Finished difference Result 49714 states and 61391 transitions. [2021-11-22 15:04:46,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:04:46,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2021-11-22 15:04:46,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:04:47,086 INFO L225 Difference]: With dead ends: 49714 [2021-11-22 15:04:47,086 INFO L226 Difference]: Without dead ends: 29118 [2021-11-22 15:04:47,144 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 [2021-11-22 15:04:47,147 INFO L933 BasicCegarLoop]: 5750 mSDtfsCounter, 3327 mSDsluCounter, 5665 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3327 SdHoareTripleChecker+Valid, 11415 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:04:47,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3327 Valid, 11415 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:04:47,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29118 states. [2021-11-22 15:04:48,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29118 to 28830. [2021-11-22 15:04:48,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28830 states, 28499 states have (on average 1.2392364644373486) internal successors, (35317), 28643 states have internal predecessors, (35317), 168 states have call successors, (168), 72 states have call predecessors, (168), 72 states have return successors, (168), 132 states have call predecessors, (168), 168 states have call successors, (168) [2021-11-22 15:04:48,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28830 states to 28830 states and 35653 transitions. [2021-11-22 15:04:48,461 INFO L78 Accepts]: Start accepts. Automaton has 28830 states and 35653 transitions. Word has length 126 [2021-11-22 15:04:48,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:04:48,462 INFO L470 AbstractCegarLoop]: Abstraction has 28830 states and 35653 transitions. [2021-11-22 15:04:48,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:04:48,463 INFO L276 IsEmpty]: Start isEmpty. Operand 28830 states and 35653 transitions. [2021-11-22 15:04:48,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-22 15:04:48,465 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:04:48,466 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] [2021-11-22 15:04:48,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 15:04:48,466 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 88 more)] === [2021-11-22 15:04:48,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:04:48,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1115598008, now seen corresponding path program 1 times [2021-11-22 15:04:48,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:04:48,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878051355] [2021-11-22 15:04:48,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:04:48,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:04:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:04:48,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:04:48,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:04:48,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878051355] [2021-11-22 15:04:48,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878051355] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:04:48,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:04:48,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:04:48,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258960052] [2021-11-22 15:04:48,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:04:48,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:04:48,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:04:48,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:04:48,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:04:48,695 INFO L87 Difference]: Start difference. First operand 28830 states and 35653 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:04:50,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:04:50,416 INFO L93 Difference]: Finished difference Result 81814 states and 101246 transitions. [2021-11-22 15:04:50,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:04:50,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2021-11-22 15:04:50,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:04:50,610 INFO L225 Difference]: With dead ends: 81814 [2021-11-22 15:04:50,610 INFO L226 Difference]: Without dead ends: 53261 [2021-11-22 15:04:50,667 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 [2021-11-22 15:04:50,667 INFO L933 BasicCegarLoop]: 6349 mSDtfsCounter, 5295 mSDsluCounter, 5700 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5295 SdHoareTripleChecker+Valid, 12049 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:04:50,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5295 Valid, 12049 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:04:50,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53261 states. [2021-11-22 15:04:52,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53261 to 52957. [2021-11-22 15:04:52,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52957 states, 52458 states have (on average 1.2396583933813718) internal successors, (65030), 52641 states have internal predecessors, (65030), 284 states have call successors, (284), 124 states have call predecessors, (284), 124 states have return successors, (284), 222 states have call predecessors, (284), 284 states have call successors, (284) [2021-11-22 15:04:52,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52957 states to 52957 states and 65598 transitions. [2021-11-22 15:04:52,628 INFO L78 Accepts]: Start accepts. Automaton has 52957 states and 65598 transitions. Word has length 129 [2021-11-22 15:04:52,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:04:52,629 INFO L470 AbstractCegarLoop]: Abstraction has 52957 states and 65598 transitions. [2021-11-22 15:04:52,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:04:52,629 INFO L276 IsEmpty]: Start isEmpty. Operand 52957 states and 65598 transitions. [2021-11-22 15:04:52,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-22 15:04:52,631 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:04:52,632 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:04:52,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 15:04:52,632 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 88 more)] === [2021-11-22 15:04:52,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:04:52,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1936185937, now seen corresponding path program 1 times [2021-11-22 15:04:52,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:04:52,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831101866] [2021-11-22 15:04:52,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:04:52,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:04:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:04:52,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:04:52,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:04:52,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831101866] [2021-11-22 15:04:52,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831101866] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:04:52,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:04:52,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:04:52,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980415043] [2021-11-22 15:04:52,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:04:52,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:04:52,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:04:52,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:04:52,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:04:52,832 INFO L87 Difference]: Start difference. First operand 52957 states and 65598 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:04:55,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:04:55,438 INFO L93 Difference]: Finished difference Result 127021 states and 157433 transitions. [2021-11-22 15:04:55,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:04:55,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2021-11-22 15:04:55,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:04:55,747 INFO L225 Difference]: With dead ends: 127021 [2021-11-22 15:04:55,747 INFO L226 Difference]: Without dead ends: 74341 [2021-11-22 15:04:55,841 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 [2021-11-22 15:04:55,843 INFO L933 BasicCegarLoop]: 7830 mSDtfsCounter, 3269 mSDsluCounter, 5666 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3269 SdHoareTripleChecker+Valid, 13496 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:04:55,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3269 Valid, 13496 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:04:55,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74341 states. [2021-11-22 15:04:57,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74341 to 74017. [2021-11-22 15:04:57,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74017 states, 73176 states have (on average 1.239969388870668) internal successors, (90736), 73443 states have internal predecessors, (90736), 514 states have call successors, (514), 236 states have call predecessors, (514), 236 states have return successors, (514), 396 states have call predecessors, (514), 514 states have call successors, (514) [2021-11-22 15:04:57,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74017 states to 74017 states and 91764 transitions. [2021-11-22 15:04:57,965 INFO L78 Accepts]: Start accepts. Automaton has 74017 states and 91764 transitions. Word has length 127 [2021-11-22 15:04:57,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:04:57,966 INFO L470 AbstractCegarLoop]: Abstraction has 74017 states and 91764 transitions. [2021-11-22 15:04:57,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:04:57,966 INFO L276 IsEmpty]: Start isEmpty. Operand 74017 states and 91764 transitions. [2021-11-22 15:04:57,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-22 15:04:57,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:04:57,969 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:04:57,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 15:04:57,969 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 88 more)] === [2021-11-22 15:04:57,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:04:57,970 INFO L85 PathProgramCache]: Analyzing trace with hash -2119372419, now seen corresponding path program 1 times [2021-11-22 15:04:57,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:04:57,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172077146] [2021-11-22 15:04:57,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:04:57,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:04:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:04:58,124 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:04:58,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:04:58,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172077146] [2021-11-22 15:04:58,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172077146] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:04:58,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:04:58,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:04:58,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857216786] [2021-11-22 15:04:58,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:04:58,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:04:58,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:04:58,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:04:58,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:04:58,127 INFO L87 Difference]: Start difference. First operand 74017 states and 91764 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2021-11-22 15:05:01,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:05:01,766 INFO L93 Difference]: Finished difference Result 220483 states and 273521 transitions. [2021-11-22 15:05:01,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:05:01,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 142 [2021-11-22 15:05:01,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:05:02,523 INFO L225 Difference]: With dead ends: 220483 [2021-11-22 15:05:02,523 INFO L226 Difference]: Without dead ends: 146796 [2021-11-22 15:05:02,660 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 [2021-11-22 15:05:02,662 INFO L933 BasicCegarLoop]: 10891 mSDtfsCounter, 5162 mSDsluCounter, 5705 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5162 SdHoareTripleChecker+Valid, 16596 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:05:02,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5162 Valid, 16596 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:05:02,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146796 states. [2021-11-22 15:05:06,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146796 to 146716. [2021-11-22 15:05:06,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146716 states, 145125 states have (on average 1.2389732988802755) internal successors, (179806), 145569 states have internal predecessors, (179806), 1028 states have call successors, (1028), 472 states have call predecessors, (1028), 472 states have return successors, (1028), 792 states have call predecessors, (1028), 1028 states have call successors, (1028) [2021-11-22 15:05:07,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146716 states to 146716 states and 181862 transitions. [2021-11-22 15:05:07,132 INFO L78 Accepts]: Start accepts. Automaton has 146716 states and 181862 transitions. Word has length 142 [2021-11-22 15:05:07,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:05:07,132 INFO L470 AbstractCegarLoop]: Abstraction has 146716 states and 181862 transitions. [2021-11-22 15:05:07,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2021-11-22 15:05:07,133 INFO L276 IsEmpty]: Start isEmpty. Operand 146716 states and 181862 transitions. [2021-11-22 15:05:07,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-22 15:05:07,141 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:05:07,142 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:05:07,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 15:05:07,142 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 88 more)] === [2021-11-22 15:05:07,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:05:07,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1588788863, now seen corresponding path program 1 times [2021-11-22 15:05:07,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:05:07,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453857522] [2021-11-22 15:05:07,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:05:07,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:05:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:05:07,324 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:05:07,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:05:07,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453857522] [2021-11-22 15:05:07,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453857522] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:05:07,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:05:07,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:05:07,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892043419] [2021-11-22 15:05:07,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:05:07,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:05:07,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:05:07,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:05:07,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:05:07,327 INFO L87 Difference]: Start difference. First operand 146716 states and 181862 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2021-11-22 15:05:12,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:05:12,361 INFO L93 Difference]: Finished difference Result 365913 states and 453781 transitions. [2021-11-22 15:05:12,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:05:12,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 142 [2021-11-22 15:05:12,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:05:12,977 INFO L225 Difference]: With dead ends: 365913 [2021-11-22 15:05:12,977 INFO L226 Difference]: Without dead ends: 219527 [2021-11-22 15:05:13,178 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 [2021-11-22 15:05:13,179 INFO L933 BasicCegarLoop]: 10892 mSDtfsCounter, 5228 mSDsluCounter, 5640 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5228 SdHoareTripleChecker+Valid, 16532 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:05:13,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5228 Valid, 16532 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:05:13,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219527 states.