./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ce3504-97a0-43bc-8392-42bb1cac8a0c/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ce3504-97a0-43bc-8392-42bb1cac8a0c/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ce3504-97a0-43bc-8392-42bb1cac8a0c/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ce3504-97a0-43bc-8392-42bb1cac8a0c/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ce3504-97a0-43bc-8392-42bb1cac8a0c/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ce3504-97a0-43bc-8392-42bb1cac8a0c/bin/uautomizer-IVEQpCNsaX --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 f6012e8ec841b08462bbd246c354a43139de7ccb42d1c6282a50e12dbc313f31 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:42:21,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:42:21,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:42:21,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:42:21,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:42:21,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:42:21,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:42:21,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:42:21,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:42:21,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:42:21,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:42:21,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:42:21,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:42:21,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:42:21,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:42:21,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:42:21,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:42:21,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:42:21,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:42:21,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:42:21,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:42:21,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:42:21,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:42:21,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:42:21,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:42:21,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:42:21,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:42:21,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:42:21,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:42:21,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:42:21,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:42:21,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:42:21,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:42:21,487 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:42:21,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:42:21,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:42:21,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:42:21,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:42:21,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:42:21,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:42:21,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:42:21,495 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ce3504-97a0-43bc-8392-42bb1cac8a0c/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-09 08:42:21,539 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:42:21,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:42:21,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:42:21,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:42:21,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:42:21,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:42:21,543 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:42:21,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:42:21,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:42:21,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:42:21,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:42:21,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:42:21,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:42:21,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:42:21,546 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:42:21,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:42:21,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:42:21,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:42:21,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:42:21,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:42:21,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:42:21,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:42:21,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:42:21,550 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:42:21,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 08:42:21,551 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:42:21,551 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 08:42:21,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:42:21,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:42:21,553 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_76ce3504-97a0-43bc-8392-42bb1cac8a0c/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ce3504-97a0-43bc-8392-42bb1cac8a0c/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6012e8ec841b08462bbd246c354a43139de7ccb42d1c6282a50e12dbc313f31 [2021-11-09 08:42:21,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:42:21,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:42:21,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:42:21,890 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:42:21,891 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:42:21,892 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ce3504-97a0-43bc-8392-42bb1cac8a0c/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2021-11-09 08:42:21,978 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ce3504-97a0-43bc-8392-42bb1cac8a0c/bin/uautomizer-IVEQpCNsaX/data/cd14165f6/e1ff0dcf07f34f7c86f93acf446a1164/FLAG946667eb0 [2021-11-09 08:42:23,103 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:42:23,103 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ce3504-97a0-43bc-8392-42bb1cac8a0c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2021-11-09 08:42:23,169 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ce3504-97a0-43bc-8392-42bb1cac8a0c/bin/uautomizer-IVEQpCNsaX/data/cd14165f6/e1ff0dcf07f34f7c86f93acf446a1164/FLAG946667eb0 [2021-11-09 08:42:23,436 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ce3504-97a0-43bc-8392-42bb1cac8a0c/bin/uautomizer-IVEQpCNsaX/data/cd14165f6/e1ff0dcf07f34f7c86f93acf446a1164 [2021-11-09 08:42:23,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:42:23,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:42:23,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:42:23,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:42:23,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:42:23,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:42:23" (1/1) ... [2021-11-09 08:42:23,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f946a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:23, skipping insertion in model container [2021-11-09 08:42:23,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:42:23" (1/1) ... [2021-11-09 08:42:23,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:42:23,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:42:26,903 WARN L228 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_76ce3504-97a0-43bc-8392-42bb1cac8a0c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314540,314553] [2021-11-09 08:42:26,910 WARN L228 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_76ce3504-97a0-43bc-8392-42bb1cac8a0c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314706,314719] [2021-11-09 08:42:26,911 WARN L228 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_76ce3504-97a0-43bc-8392-42bb1cac8a0c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314870,314883] [2021-11-09 08:42:26,912 WARN L228 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_76ce3504-97a0-43bc-8392-42bb1cac8a0c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[315035,315048] [2021-11-09 08:42:26,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:42:27,036 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:42:27,611 WARN L228 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_76ce3504-97a0-43bc-8392-42bb1cac8a0c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314540,314553] [2021-11-09 08:42:27,612 WARN L228 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_76ce3504-97a0-43bc-8392-42bb1cac8a0c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314706,314719] [2021-11-09 08:42:27,614 WARN L228 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_76ce3504-97a0-43bc-8392-42bb1cac8a0c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314870,314883] [2021-11-09 08:42:27,614 WARN L228 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_76ce3504-97a0-43bc-8392-42bb1cac8a0c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[315035,315048] [2021-11-09 08:42:27,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:42:27,939 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:42:27,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:27 WrapperNode [2021-11-09 08:42:27,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:42:27,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:42:27,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:42:27,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:42:27,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:27" (1/1) ... [2021-11-09 08:42:28,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:27" (1/1) ... [2021-11-09 08:42:33,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:42:33,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:42:33,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:42:33,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:42:33,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:27" (1/1) ... [2021-11-09 08:42:33,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:27" (1/1) ... [2021-11-09 08:42:34,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:27" (1/1) ... [2021-11-09 08:42:34,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:27" (1/1) ... [2021-11-09 08:42:36,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:27" (1/1) ... [2021-11-09 08:42:36,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:27" (1/1) ... [2021-11-09 08:42:37,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:27" (1/1) ... [2021-11-09 08:42:37,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:42:37,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:42:37,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:42:37,782 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:42:37,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:27" (1/1) ... [2021-11-09 08:42:37,792 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:42:37,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ce3504-97a0-43bc-8392-42bb1cac8a0c/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:42:37,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ce3504-97a0-43bc-8392-42bb1cac8a0c/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:42:37,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ce3504-97a0-43bc-8392-42bb1cac8a0c/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:42:37,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 08:42:37,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-09 08:42:37,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-09 08:42:37,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 08:42:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 08:42:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-09 08:42:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:42:37,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:42:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-09 08:42:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-09 08:42:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:42:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-09 08:42:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-09 08:42:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 08:42:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:44:44,422 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-09 08:44:44,422 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-09 08:44:44,423 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-09 08:44:44,423 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-09 08:44:44,425 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-09 08:44:44,427 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-09 08:44:44,428 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-09 08:44:44,538 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:44:44,538 INFO L299 CfgBuilder]: Removed 18405 assume(true) statements. [2021-11-09 08:44:44,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:44:44 BoogieIcfgContainer [2021-11-09 08:44:44,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:44:44,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:44:44,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:44:44,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:44:44,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:42:23" (1/3) ... [2021-11-09 08:44:44,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db3e0ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:44:44, skipping insertion in model container [2021-11-09 08:44:44,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:27" (2/3) ... [2021-11-09 08:44:44,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db3e0ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:44:44, skipping insertion in model container [2021-11-09 08:44:44,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:44:44" (3/3) ... [2021-11-09 08:44:44,569 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2021-11-09 08:44:44,576 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:44:44,576 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-11-09 08:44:44,700 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:44:44,706 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 [2021-11-09 08:44:44,707 INFO L340 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2021-11-09 08:44:45,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 18946 states, 18912 states have (on average 1.384887901861252) internal successors, (26191), 18945 states have internal predecessors, (26191), 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) [2021-11-09 08:44:45,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-09 08:44:45,037 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:45,038 INFO L513 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] [2021-11-09 08:44:45,039 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-09 08:44:45,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:45,047 INFO L85 PathProgramCache]: Analyzing trace with hash -2049477516, now seen corresponding path program 1 times [2021-11-09 08:44:45,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:45,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866346248] [2021-11-09 08:44:45,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:45,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:46,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:46,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:46,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866346248] [2021-11-09 08:44:46,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866346248] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:44:46,115 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:44:46,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:44:46,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773770422] [2021-11-09 08:44:46,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:44:46,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:46,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:44:46,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:44:46,189 INFO L87 Difference]: Start difference. First operand has 18946 states, 18912 states have (on average 1.384887901861252) internal successors, (26191), 18945 states have internal predecessors, (26191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-11-09 08:44:50,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:50,149 INFO L93 Difference]: Finished difference Result 56167 states and 77717 transitions. [2021-11-09 08:44:50,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:44:50,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2021-11-09 08:44:50,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:50,415 INFO L225 Difference]: With dead ends: 56167 [2021-11-09 08:44:50,415 INFO L226 Difference]: Without dead ends: 35043 [2021-11-09 08:44:50,776 INFO L786 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 [2021-11-09 08:44:50,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35043 states. [2021-11-09 08:44:51,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35043 to 35011. [2021-11-09 08:44:51,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35011 states, 34977 states have (on average 1.342367841724562) internal successors, (46952), 35010 states have internal predecessors, (46952), 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) [2021-11-09 08:44:52,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35011 states to 35011 states and 46952 transitions. [2021-11-09 08:44:52,234 INFO L78 Accepts]: Start accepts. Automaton has 35011 states and 46952 transitions. Word has length 80 [2021-11-09 08:44:52,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:52,236 INFO L470 AbstractCegarLoop]: Abstraction has 35011 states and 46952 transitions. [2021-11-09 08:44:52,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-11-09 08:44:52,237 INFO L276 IsEmpty]: Start isEmpty. Operand 35011 states and 46952 transitions. [2021-11-09 08:44:52,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-09 08:44:52,244 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:52,244 INFO L513 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] [2021-11-09 08:44:52,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 08:44:52,245 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-09 08:44:52,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:52,250 INFO L85 PathProgramCache]: Analyzing trace with hash -2061509344, now seen corresponding path program 1 times [2021-11-09 08:44:52,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:52,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533303602] [2021-11-09 08:44:52,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:52,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:52,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:52,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:52,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533303602] [2021-11-09 08:44:52,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533303602] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:44:52,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:44:52,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:44:52,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957047835] [2021-11-09 08:44:52,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:44:52,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:52,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:44:52,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:44:52,947 INFO L87 Difference]: Start difference. First operand 35011 states and 46952 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2021-11-09 08:44:56,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:56,496 INFO L93 Difference]: Finished difference Result 62186 states and 83347 transitions. [2021-11-09 08:44:56,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:44:56,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 85 [2021-11-09 08:44:56,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:56,579 INFO L225 Difference]: With dead ends: 62186 [2021-11-09 08:44:56,579 INFO L226 Difference]: Without dead ends: 27331 [2021-11-09 08:44:56,620 INFO L786 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 [2021-11-09 08:44:56,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27331 states. [2021-11-09 08:44:57,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27331 to 27215. [2021-11-09 08:44:57,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27215 states, 27181 states have (on average 1.3405319892572016) internal successors, (36437), 27214 states have internal predecessors, (36437), 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) [2021-11-09 08:44:57,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27215 states to 27215 states and 36437 transitions. [2021-11-09 08:44:57,269 INFO L78 Accepts]: Start accepts. Automaton has 27215 states and 36437 transitions. Word has length 85 [2021-11-09 08:44:57,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:57,270 INFO L470 AbstractCegarLoop]: Abstraction has 27215 states and 36437 transitions. [2021-11-09 08:44:57,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2021-11-09 08:44:57,271 INFO L276 IsEmpty]: Start isEmpty. Operand 27215 states and 36437 transitions. [2021-11-09 08:44:57,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-09 08:44:57,275 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:57,275 INFO L513 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] [2021-11-09 08:44:57,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 08:44:57,276 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-09 08:44:57,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:57,276 INFO L85 PathProgramCache]: Analyzing trace with hash -2090854963, now seen corresponding path program 1 times [2021-11-09 08:44:57,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:57,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604305423] [2021-11-09 08:44:57,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:57,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:57,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:57,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:57,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604305423] [2021-11-09 08:44:57,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604305423] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:44:57,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:44:57,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:44:57,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142144834] [2021-11-09 08:44:57,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:44:57,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:57,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:44:57,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:44:57,608 INFO L87 Difference]: Start difference. First operand 27215 states and 36437 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-11-09 08:45:00,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:00,464 INFO L93 Difference]: Finished difference Result 46568 states and 62345 transitions. [2021-11-09 08:45:00,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:45:00,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 101 [2021-11-09 08:45:00,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:00,528 INFO L225 Difference]: With dead ends: 46568 [2021-11-09 08:45:00,529 INFO L226 Difference]: Without dead ends: 19509 [2021-11-09 08:45:00,568 INFO L786 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 [2021-11-09 08:45:00,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19509 states. [2021-11-09 08:45:01,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19509 to 19509. [2021-11-09 08:45:01,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19509 states, 19479 states have (on average 1.3387237537861287) internal successors, (26077), 19508 states have internal predecessors, (26077), 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) [2021-11-09 08:45:01,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19509 states to 19509 states and 26077 transitions. [2021-11-09 08:45:01,282 INFO L78 Accepts]: Start accepts. Automaton has 19509 states and 26077 transitions. Word has length 101 [2021-11-09 08:45:01,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:01,282 INFO L470 AbstractCegarLoop]: Abstraction has 19509 states and 26077 transitions. [2021-11-09 08:45:01,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-11-09 08:45:01,283 INFO L276 IsEmpty]: Start isEmpty. Operand 19509 states and 26077 transitions. [2021-11-09 08:45:01,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-09 08:45:01,293 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:01,294 INFO L513 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] [2021-11-09 08:45:01,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 08:45:01,294 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-09 08:45:01,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:01,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1626535749, now seen corresponding path program 1 times [2021-11-09 08:45:01,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:01,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411466483] [2021-11-09 08:45:01,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:01,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:01,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:01,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:01,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411466483] [2021-11-09 08:45:01,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411466483] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:01,619 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:01,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:45:01,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440428271] [2021-11-09 08:45:01,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:45:01,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:01,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:45:01,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:45:01,621 INFO L87 Difference]: Start difference. First operand 19509 states and 26077 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-11-09 08:45:04,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:04,776 INFO L93 Difference]: Finished difference Result 51662 states and 69130 transitions. [2021-11-09 08:45:04,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:45:04,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 111 [2021-11-09 08:45:04,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:04,862 INFO L225 Difference]: With dead ends: 51662 [2021-11-09 08:45:04,862 INFO L226 Difference]: Without dead ends: 32309 [2021-11-09 08:45:04,897 INFO L786 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 [2021-11-09 08:45:04,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32309 states. [2021-11-09 08:45:05,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32309 to 32179. [2021-11-09 08:45:05,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32179 states, 32149 states have (on average 1.3398550499237925) internal successors, (43075), 32178 states have internal predecessors, (43075), 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) [2021-11-09 08:45:06,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32179 states to 32179 states and 43075 transitions. [2021-11-09 08:45:06,047 INFO L78 Accepts]: Start accepts. Automaton has 32179 states and 43075 transitions. Word has length 111 [2021-11-09 08:45:06,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:06,049 INFO L470 AbstractCegarLoop]: Abstraction has 32179 states and 43075 transitions. [2021-11-09 08:45:06,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-11-09 08:45:06,049 INFO L276 IsEmpty]: Start isEmpty. Operand 32179 states and 43075 transitions. [2021-11-09 08:45:06,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-09 08:45:06,053 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:06,054 INFO L513 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] [2021-11-09 08:45:06,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 08:45:06,054 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-09 08:45:06,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:06,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1227260858, now seen corresponding path program 1 times [2021-11-09 08:45:06,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:06,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322479228] [2021-11-09 08:45:06,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:06,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:06,382 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:06,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:06,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322479228] [2021-11-09 08:45:06,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322479228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:06,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:06,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:45:06,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913103106] [2021-11-09 08:45:06,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:45:06,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:06,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:45:06,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:45:06,386 INFO L87 Difference]: Start difference. First operand 32179 states and 43075 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-09 08:45:09,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:09,969 INFO L93 Difference]: Finished difference Result 94285 states and 126428 transitions. [2021-11-09 08:45:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:45:09,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 113 [2021-11-09 08:45:09,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:10,120 INFO L225 Difference]: With dead ends: 94285 [2021-11-09 08:45:10,121 INFO L226 Difference]: Without dead ends: 62887 [2021-11-09 08:45:10,165 INFO L786 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 [2021-11-09 08:45:10,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62887 states. [2021-11-09 08:45:11,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62887 to 62830. [2021-11-09 08:45:11,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62830 states, 62800 states have (on average 1.3420063694267517) internal successors, (84278), 62829 states have internal predecessors, (84278), 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) [2021-11-09 08:45:12,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62830 states to 62830 states and 84278 transitions. [2021-11-09 08:45:12,218 INFO L78 Accepts]: Start accepts. Automaton has 62830 states and 84278 transitions. Word has length 113 [2021-11-09 08:45:12,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:12,219 INFO L470 AbstractCegarLoop]: Abstraction has 62830 states and 84278 transitions. [2021-11-09 08:45:12,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-09 08:45:12,225 INFO L276 IsEmpty]: Start isEmpty. Operand 62830 states and 84278 transitions. [2021-11-09 08:45:12,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-09 08:45:12,229 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:12,229 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:45:12,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 08:45:12,231 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-09 08:45:12,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:12,233 INFO L85 PathProgramCache]: Analyzing trace with hash -889535854, now seen corresponding path program 1 times [2021-11-09 08:45:12,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:12,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180567627] [2021-11-09 08:45:12,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:12,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:12,943 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-09 08:45:12,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:12,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180567627] [2021-11-09 08:45:12,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180567627] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:12,944 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:12,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:45:12,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753163850] [2021-11-09 08:45:12,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:45:12,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:12,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:45:12,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:45:12,948 INFO L87 Difference]: Start difference. First operand 62830 states and 84278 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2021-11-09 08:45:14,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:14,911 INFO L93 Difference]: Finished difference Result 62830 states and 84278 transitions. [2021-11-09 08:45:14,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:45:14,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 113 [2021-11-09 08:45:14,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:15,050 INFO L225 Difference]: With dead ends: 62830 [2021-11-09 08:45:15,050 INFO L226 Difference]: Without dead ends: 62824 [2021-11-09 08:45:15,066 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:45:15,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62824 states. [2021-11-09 08:45:16,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62824 to 62824. [2021-11-09 08:45:16,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62824 states, 62797 states have (on average 1.341974935108365) internal successors, (84272), 62823 states have internal predecessors, (84272), 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) [2021-11-09 08:45:17,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62824 states to 62824 states and 84272 transitions. [2021-11-09 08:45:17,033 INFO L78 Accepts]: Start accepts. Automaton has 62824 states and 84272 transitions. Word has length 113 [2021-11-09 08:45:17,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:17,034 INFO L470 AbstractCegarLoop]: Abstraction has 62824 states and 84272 transitions. [2021-11-09 08:45:17,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2021-11-09 08:45:17,034 INFO L276 IsEmpty]: Start isEmpty. Operand 62824 states and 84272 transitions. [2021-11-09 08:45:17,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-09 08:45:17,038 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:17,038 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:45:17,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 08:45:17,039 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-09 08:45:17,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:17,039 INFO L85 PathProgramCache]: Analyzing trace with hash -145309259, now seen corresponding path program 1 times [2021-11-09 08:45:17,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:17,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994049477] [2021-11-09 08:45:17,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:17,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:17,516 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-09 08:45:17,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:17,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994049477] [2021-11-09 08:45:17,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994049477] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:17,517 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:17,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:45:17,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293695184] [2021-11-09 08:45:17,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:45:17,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:17,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:45:17,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:45:17,520 INFO L87 Difference]: Start difference. First operand 62824 states and 84272 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) [2021-11-09 08:45:19,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:19,645 INFO L93 Difference]: Finished difference Result 62824 states and 84272 transitions. [2021-11-09 08:45:19,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:45:19,645 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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 115 [2021-11-09 08:45:19,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:19,778 INFO L225 Difference]: With dead ends: 62824 [2021-11-09 08:45:19,779 INFO L226 Difference]: Without dead ends: 62818 [2021-11-09 08:45:19,800 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:45:19,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62818 states. [2021-11-09 08:45:21,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62818 to 62818. [2021-11-09 08:45:21,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62818 states, 62794 states have (on average 1.3419434977864126) internal successors, (84266), 62817 states have internal predecessors, (84266), 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) [2021-11-09 08:45:21,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62818 states to 62818 states and 84266 transitions. [2021-11-09 08:45:21,682 INFO L78 Accepts]: Start accepts. Automaton has 62818 states and 84266 transitions. Word has length 115 [2021-11-09 08:45:21,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:21,683 INFO L470 AbstractCegarLoop]: Abstraction has 62818 states and 84266 transitions. [2021-11-09 08:45:21,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) [2021-11-09 08:45:21,683 INFO L276 IsEmpty]: Start isEmpty. Operand 62818 states and 84266 transitions. [2021-11-09 08:45:21,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-09 08:45:21,686 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:21,687 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:45:21,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-09 08:45:21,687 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-09 08:45:21,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:21,688 INFO L85 PathProgramCache]: Analyzing trace with hash 2091877720, now seen corresponding path program 1 times [2021-11-09 08:45:21,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:21,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908562060] [2021-11-09 08:45:21,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:21,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:22,098 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-09 08:45:22,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:22,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908562060] [2021-11-09 08:45:22,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908562060] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:22,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:22,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:45:22,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301829179] [2021-11-09 08:45:22,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:45:22,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:22,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:45:22,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:45:22,103 INFO L87 Difference]: Start difference. First operand 62818 states and 84266 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2021-11-09 08:45:24,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:24,332 INFO L93 Difference]: Finished difference Result 62818 states and 84266 transitions. [2021-11-09 08:45:24,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:45:24,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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 117 [2021-11-09 08:45:24,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:24,428 INFO L225 Difference]: With dead ends: 62818 [2021-11-09 08:45:24,428 INFO L226 Difference]: Without dead ends: 62812 [2021-11-09 08:45:24,440 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:45:24,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62812 states. [2021-11-09 08:45:26,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62812 to 62812. [2021-11-09 08:45:26,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62812 states, 62791 states have (on average 1.3419120574604642) internal successors, (84260), 62811 states have internal predecessors, (84260), 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) [2021-11-09 08:45:26,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62812 states to 62812 states and 84260 transitions. [2021-11-09 08:45:26,212 INFO L78 Accepts]: Start accepts. Automaton has 62812 states and 84260 transitions. Word has length 117 [2021-11-09 08:45:26,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:26,212 INFO L470 AbstractCegarLoop]: Abstraction has 62812 states and 84260 transitions. [2021-11-09 08:45:26,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2021-11-09 08:45:26,213 INFO L276 IsEmpty]: Start isEmpty. Operand 62812 states and 84260 transitions. [2021-11-09 08:45:26,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-09 08:45:26,216 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:26,216 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:45:26,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-09 08:45:26,216 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-09 08:45:26,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:26,217 INFO L85 PathProgramCache]: Analyzing trace with hash 249949563, now seen corresponding path program 1 times [2021-11-09 08:45:26,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:26,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401900771] [2021-11-09 08:45:26,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:26,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:26,599 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-09 08:45:26,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:26,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401900771] [2021-11-09 08:45:26,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401900771] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:26,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:26,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:45:26,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432601233] [2021-11-09 08:45:26,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:45:26,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:26,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:45:26,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:45:26,602 INFO L87 Difference]: Start difference. First operand 62812 states and 84260 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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) [2021-11-09 08:45:28,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:28,697 INFO L93 Difference]: Finished difference Result 62812 states and 84260 transitions. [2021-11-09 08:45:28,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:45:28,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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 119 [2021-11-09 08:45:28,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:28,800 INFO L225 Difference]: With dead ends: 62812 [2021-11-09 08:45:28,800 INFO L226 Difference]: Without dead ends: 62806 [2021-11-09 08:45:28,817 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:45:28,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62806 states. [2021-11-09 08:45:30,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62806 to 62806. [2021-11-09 08:45:30,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62806 states, 62788 states have (on average 1.3418806141300885) internal successors, (84254), 62805 states have internal predecessors, (84254), 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) [2021-11-09 08:45:30,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62806 states to 62806 states and 84254 transitions. [2021-11-09 08:45:30,918 INFO L78 Accepts]: Start accepts. Automaton has 62806 states and 84254 transitions. Word has length 119 [2021-11-09 08:45:30,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:30,919 INFO L470 AbstractCegarLoop]: Abstraction has 62806 states and 84254 transitions. [2021-11-09 08:45:30,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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) [2021-11-09 08:45:30,919 INFO L276 IsEmpty]: Start isEmpty. Operand 62806 states and 84254 transitions. [2021-11-09 08:45:30,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-09 08:45:30,924 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:30,924 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:45:30,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-09 08:45:30,925 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-09 08:45:30,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:30,926 INFO L85 PathProgramCache]: Analyzing trace with hash -316483042, now seen corresponding path program 1 times [2021-11-09 08:45:30,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:30,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97797590] [2021-11-09 08:45:30,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:30,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:31,407 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-09 08:45:31,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:31,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97797590] [2021-11-09 08:45:31,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97797590] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:31,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:31,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:45:31,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808606411] [2021-11-09 08:45:31,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:45:31,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:31,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:45:31,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:45:31,414 INFO L87 Difference]: Start difference. First operand 62806 states and 84254 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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)