./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/bin/utaipan-eEHZpOm5b7 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 669a2a9ff3eee6fac1a30d2be9685f0a9602e4c65b5ab7659f35d3f97dedccb1 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:37:31,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:37:31,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:37:31,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:37:31,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:37:31,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:37:31,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:37:31,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:37:31,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:37:31,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:37:31,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:37:31,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:37:31,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:37:31,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:37:31,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:37:31,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:37:31,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:37:31,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:37:31,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:37:31,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:37:31,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:37:31,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:37:31,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:37:31,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:37:31,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:37:31,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:37:31,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:37:31,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:37:31,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:37:31,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:37:31,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:37:31,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:37:31,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:37:31,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:37:31,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:37:31,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:37:31,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:37:31,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:37:31,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:37:31,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:37:31,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:37:31,864 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:37:31,912 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:37:31,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:37:31,913 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:37:31,913 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:37:31,920 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:37:31,920 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:37:31,920 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:37:31,921 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:37:31,921 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:37:31,921 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:37:31,922 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:37:31,922 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:37:31,923 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:37:31,923 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:37:31,923 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:37:31,923 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:37:31,923 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:37:31,923 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:37:31,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:37:31,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:37:31,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:37:31,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:37:31,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:37:31,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:37:31,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:37:31,926 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:37:31,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:37:31,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:37:31,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:37:31,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:37:31,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:37:31,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:37:31,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:37:31,929 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:37:31,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:37:31,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:37:31,929 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:37:31,929 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:37:31,930 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_9d7a0dab-a295-4ba7-890d-641f39b2d01e/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 669a2a9ff3eee6fac1a30d2be9685f0a9602e4c65b5ab7659f35d3f97dedccb1 [2021-11-25 20:37:32,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:37:32,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:37:32,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:37:32,298 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:37:32,301 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:37:32,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-25 20:37:32,361 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/bin/utaipan-eEHZpOm5b7/data/69ab75925/8f03262ac5c5403d8c690b04ab61b791/FLAG3df503c9b [2021-11-25 20:37:33,658 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:37:33,659 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-25 20:37:33,748 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/bin/utaipan-eEHZpOm5b7/data/69ab75925/8f03262ac5c5403d8c690b04ab61b791/FLAG3df503c9b [2021-11-25 20:37:34,260 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/bin/utaipan-eEHZpOm5b7/data/69ab75925/8f03262ac5c5403d8c690b04ab61b791 [2021-11-25 20:37:34,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:37:34,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:37:34,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:37:34,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:37:34,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:37:34,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:37:34" (1/1) ... [2021-11-25 20:37:34,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3683f26f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:34, skipping insertion in model container [2021-11-25 20:37:34,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:37:34" (1/1) ... [2021-11-25 20:37:34,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:37:34,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:37:40,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[615497,615510] [2021-11-25 20:37:40,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[615644,615657] [2021-11-25 20:37:40,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[615783,615796] [2021-11-25 20:37:40,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[615941,615954] [2021-11-25 20:37:40,929 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:37:41,002 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:37:41,623 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[615497,615510] [2021-11-25 20:37:41,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[615644,615657] [2021-11-25 20:37:41,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[615783,615796] [2021-11-25 20:37:41,626 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[615941,615954] [2021-11-25 20:37:41,641 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:37:42,109 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:37:42,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:42 WrapperNode [2021-11-25 20:37:42,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:37:42,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:37:42,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:37:42,111 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:37:42,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:42" (1/1) ... [2021-11-25 20:37:42,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:42" (1/1) ... [2021-11-25 20:37:42,885 INFO L137 Inliner]: procedures = 690, calls = 7447, calls flagged for inlining = 379, calls inlined = 358, statements flattened = 15777 [2021-11-25 20:37:42,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:37:42,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:37:42,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:37:42,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:37:42,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:42" (1/1) ... [2021-11-25 20:37:42,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:42" (1/1) ... [2021-11-25 20:37:42,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:42" (1/1) ... [2021-11-25 20:37:42,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:42" (1/1) ... [2021-11-25 20:37:43,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:42" (1/1) ... [2021-11-25 20:37:43,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:42" (1/1) ... [2021-11-25 20:37:43,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:42" (1/1) ... [2021-11-25 20:37:43,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:37:43,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:37:43,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:37:43,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:37:43,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:42" (1/1) ... [2021-11-25 20:37:43,692 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:37:43,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:43,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:37:43,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a0dab-a295-4ba7-890d-641f39b2d01e/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:37:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-25 20:37:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-25 20:37:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-25 20:37:43,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-25 20:37:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-25 20:37:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 20:37:43,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 20:37:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-25 20:37:43,766 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-25 20:37:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2021-11-25 20:37:43,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2021-11-25 20:37:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-25 20:37:43,766 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-25 20:37:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-25 20:37:43,767 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-25 20:37:43,767 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2021-11-25 20:37:43,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2021-11-25 20:37:43,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:37:43,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:37:43,767 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2021-11-25 20:37:43,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2021-11-25 20:37:43,768 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2021-11-25 20:37:43,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2021-11-25 20:37:43,768 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2021-11-25 20:37:43,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2021-11-25 20:37:43,768 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-11-25 20:37:43,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-11-25 20:37:43,769 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-25 20:37:43,769 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-25 20:37:43,769 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-25 20:37:43,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-25 20:37:43,770 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2021-11-25 20:37:43,770 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2021-11-25 20:37:43,770 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-25 20:37:43,770 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-25 20:37:43,770 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-25 20:37:43,771 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-25 20:37:43,771 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-25 20:37:43,771 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-25 20:37:43,771 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 20:37:43,771 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 20:37:43,772 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-25 20:37:43,772 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-25 20:37:43,773 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 20:37:43,773 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 20:37:43,773 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2021-11-25 20:37:43,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2021-11-25 20:37:43,774 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_resume [2021-11-25 20:37:43,775 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_resume [2021-11-25 20:37:43,775 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 20:37:43,775 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 20:37:43,775 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-25 20:37:43,776 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-25 20:37:43,776 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2021-11-25 20:37:43,776 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2021-11-25 20:37:43,776 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2021-11-25 20:37:43,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2021-11-25 20:37:43,777 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_mac_hdr_len [2021-11-25 20:37:43,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_mac_hdr_len [2021-11-25 20:37:43,777 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2021-11-25 20:37:43,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2021-11-25 20:37:43,777 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-11-25 20:37:43,778 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-11-25 20:37:43,778 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 20:37:43,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 20:37:43,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 20:37:43,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 20:37:43,779 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2021-11-25 20:37:43,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2021-11-25 20:37:43,779 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 20:37:43,779 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 20:37:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 20:37:43,780 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 20:37:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2021-11-25 20:37:43,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2021-11-25 20:37:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 20:37:43,781 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 20:37:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 20:37:43,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 20:37:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2021-11-25 20:37:43,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2021-11-25 20:37:43,782 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2021-11-25 20:37:43,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2021-11-25 20:37:43,783 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-25 20:37:43,783 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-25 20:37:43,783 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-25 20:37:43,783 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-25 20:37:43,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:37:43,784 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-25 20:37:43,784 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-25 20:37:43,784 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2021-11-25 20:37:43,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2021-11-25 20:37:43,785 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2021-11-25 20:37:43,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2021-11-25 20:37:43,785 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2021-11-25 20:37:43,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2021-11-25 20:37:43,785 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2021-11-25 20:37:43,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2021-11-25 20:37:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2021-11-25 20:37:43,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2021-11-25 20:37:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-25 20:37:43,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-25 20:37:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2021-11-25 20:37:43,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2021-11-25 20:37:43,787 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-25 20:37:43,788 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-25 20:37:43,790 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2021-11-25 20:37:43,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2021-11-25 20:37:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2021-11-25 20:37:43,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2021-11-25 20:37:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2021-11-25 20:37:43,792 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2021-11-25 20:37:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 20:37:43,792 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 20:37:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2021-11-25 20:37:43,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2021-11-25 20:37:43,798 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 20:37:43,798 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 20:37:43,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_qlge_driver_exit_16_2 [2021-11-25 20:37:43,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_qlge_driver_exit_16_2 [2021-11-25 20:37:43,799 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2021-11-25 20:37:43,799 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2021-11-25 20:37:43,799 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-25 20:37:43,799 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-25 20:37:43,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 20:37:43,799 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2021-11-25 20:37:43,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2021-11-25 20:37:43,800 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-25 20:37:43,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-25 20:37:43,800 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 20:37:43,800 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 20:37:43,800 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 20:37:43,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 20:37:43,801 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2021-11-25 20:37:43,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2021-11-25 20:37:43,801 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2021-11-25 20:37:43,801 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2021-11-25 20:37:43,801 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2021-11-25 20:37:43,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2021-11-25 20:37:43,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 20:37:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2021-11-25 20:37:43,802 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2021-11-25 20:37:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 20:37:43,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 20:37:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:37:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 20:37:43,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 20:37:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 20:37:43,803 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 20:37:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 20:37:43,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 20:37:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-25 20:37:43,803 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-25 20:37:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 20:37:43,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 20:37:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2021-11-25 20:37:43,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2021-11-25 20:37:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-11-25 20:37:43,804 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-11-25 20:37:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 20:37:43,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 20:37:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2021-11-25 20:37:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2021-11-25 20:37:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-25 20:37:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-25 20:37:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-25 20:37:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-25 20:37:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2021-11-25 20:37:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2021-11-25 20:37:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2021-11-25 20:37:43,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2021-11-25 20:37:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-25 20:37:43,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-25 20:37:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 20:37:43,807 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 20:37:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2021-11-25 20:37:43,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2021-11-25 20:37:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2021-11-25 20:37:43,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2021-11-25 20:37:43,809 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2021-11-25 20:37:43,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2021-11-25 20:37:43,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:37:43,809 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2021-11-25 20:37:43,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2021-11-25 20:37:43,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 20:37:43,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 20:37:43,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 20:37:43,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 20:37:43,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-25 20:37:43,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-25 20:37:43,811 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2021-11-25 20:37:43,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2021-11-25 20:37:43,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-25 20:37:43,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-25 20:37:43,811 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2021-11-25 20:37:43,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2021-11-25 20:37:43,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:37:43,812 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-25 20:37:43,812 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-25 20:37:43,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 20:37:43,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 20:37:43,812 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 20:37:43,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 20:37:43,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:37:43,812 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 20:37:43,813 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2021-11-25 20:37:43,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2021-11-25 20:37:43,813 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2021-11-25 20:37:43,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2021-11-25 20:37:43,813 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:37:43,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:37:43,813 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-25 20:37:43,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-25 20:37:43,814 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2021-11-25 20:37:43,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2021-11-25 20:37:43,814 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 20:37:43,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 20:37:43,814 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_completion_interrupt [2021-11-25 20:37:43,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_completion_interrupt [2021-11-25 20:37:43,815 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2021-11-25 20:37:43,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2021-11-25 20:37:43,815 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-25 20:37:43,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-25 20:37:43,815 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2021-11-25 20:37:43,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2021-11-25 20:37:43,815 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-25 20:37:43,816 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-25 20:37:43,816 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2021-11-25 20:37:43,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2021-11-25 20:37:43,816 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 20:37:43,816 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 20:37:43,816 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-25 20:37:43,817 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-25 20:37:43,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 20:37:43,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 20:37:43,821 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-25 20:37:43,821 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-25 20:37:43,821 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2021-11-25 20:37:43,822 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2021-11-25 20:37:43,822 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2021-11-25 20:37:43,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2021-11-25 20:37:43,822 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-25 20:37:43,823 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-25 20:37:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2021-11-25 20:37:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2021-11-25 20:37:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-25 20:37:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-25 20:37:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 20:37:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 20:37:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:37:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:37:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2021-11-25 20:37:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2021-11-25 20:37:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-25 20:37:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-25 20:37:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2021-11-25 20:37:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2021-11-25 20:37:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2021-11-25 20:37:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2021-11-25 20:37:43,826 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-25 20:37:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-25 20:37:43,826 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2021-11-25 20:37:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2021-11-25 20:37:43,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 20:37:43,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 20:37:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 20:37:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 20:37:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2021-11-25 20:37:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2021-11-25 20:37:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-25 20:37:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-25 20:37:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 20:37:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 20:37:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2021-11-25 20:37:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2021-11-25 20:37:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-25 20:37:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-25 20:37:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-25 20:37:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-25 20:37:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 20:37:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 20:37:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2021-11-25 20:37:43,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2021-11-25 20:37:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 20:37:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2021-11-25 20:37:43,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2021-11-25 20:37:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-25 20:37:43,829 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-25 20:37:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2021-11-25 20:37:43,829 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2021-11-25 20:37:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2021-11-25 20:37:43,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2021-11-25 20:37:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 20:37:43,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 20:37:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2021-11-25 20:37:43,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2021-11-25 20:37:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2021-11-25 20:37:43,830 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2021-11-25 20:37:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2021-11-25 20:37:43,831 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2021-11-25 20:37:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-25 20:37:43,831 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-25 20:37:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-25 20:37:43,831 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-25 20:37:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-25 20:37:43,831 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-25 20:37:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-25 20:37:43,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-25 20:37:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2021-11-25 20:37:43,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2021-11-25 20:37:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-25 20:37:43,832 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-25 20:37:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 20:37:43,832 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 20:37:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2021-11-25 20:37:43,833 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2021-11-25 20:37:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2021-11-25 20:37:43,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2021-11-25 20:37:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-25 20:37:43,833 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-25 20:37:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2021-11-25 20:37:43,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2021-11-25 20:37:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2021-11-25 20:37:43,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2021-11-25 20:37:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-25 20:37:43,834 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-25 20:37:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2021-11-25 20:37:43,834 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2021-11-25 20:37:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 20:37:43,835 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 20:37:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-25 20:37:43,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-25 20:37:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:37:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 20:37:43,835 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 20:37:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2021-11-25 20:37:43,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2021-11-25 20:37:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-25 20:37:43,836 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-25 20:37:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2021-11-25 20:37:43,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2021-11-25 20:37:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 20:37:43,836 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 20:37:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2021-11-25 20:37:43,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2021-11-25 20:37:43,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:37:43,837 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-25 20:37:43,837 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-25 20:37:43,837 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2021-11-25 20:37:43,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2021-11-25 20:37:43,837 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2021-11-25 20:37:43,837 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2021-11-25 20:37:43,837 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-11-25 20:37:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-11-25 20:37:43,838 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-25 20:37:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-25 20:37:43,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:37:43,838 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2021-11-25 20:37:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2021-11-25 20:37:43,838 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2021-11-25 20:37:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2021-11-25 20:37:43,839 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-25 20:37:43,839 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-25 20:37:43,839 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2021-11-25 20:37:43,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2021-11-25 20:37:43,839 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-25 20:37:43,839 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-25 20:37:43,839 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 20:37:43,839 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 20:37:43,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-25 20:37:43,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-25 20:37:43,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 20:37:43,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 20:37:43,840 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-25 20:37:43,840 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-25 20:37:43,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-25 20:37:43,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-25 20:37:43,841 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2021-11-25 20:37:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2021-11-25 20:37:43,842 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2021-11-25 20:37:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2021-11-25 20:37:43,842 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-25 20:37:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-25 20:37:43,842 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-11-25 20:37:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-11-25 20:37:43,842 INFO L130 BoogieDeclarations]: Found specification of procedure ql_categorize_rx_err [2021-11-25 20:37:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_categorize_rx_err [2021-11-25 20:37:43,843 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-25 20:37:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-25 20:37:43,843 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 20:37:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 20:37:43,843 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-25 20:37:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-25 20:37:43,843 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2021-11-25 20:37:43,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2021-11-25 20:37:43,844 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-25 20:37:43,844 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-25 20:37:43,844 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2021-11-25 20:37:43,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2021-11-25 20:37:43,844 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-25 20:37:43,844 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-25 20:37:43,845 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 20:37:43,845 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 20:37:43,845 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-25 20:37:43,845 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-25 20:37:43,845 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2021-11-25 20:37:43,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2021-11-25 20:37:43,845 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 20:37:43,845 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 20:37:43,846 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2021-11-25 20:37:43,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2021-11-25 20:37:43,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:37:43,846 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-25 20:37:43,846 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-25 20:37:43,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 20:37:43,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 20:37:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2021-11-25 20:37:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2021-11-25 20:37:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 20:37:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 20:37:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-25 20:37:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-25 20:37:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2021-11-25 20:37:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2021-11-25 20:37:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2021-11-25 20:37:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2021-11-25 20:37:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-25 20:37:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-25 20:37:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2021-11-25 20:37:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2021-11-25 20:37:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2021-11-25 20:37:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2021-11-25 20:37:43,849 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-25 20:37:43,849 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-25 20:37:43,849 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-25 20:37:43,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-25 20:37:43,849 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2021-11-25 20:37:43,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2021-11-25 20:37:43,849 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2021-11-25 20:37:43,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2021-11-25 20:37:43,850 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2021-11-25 20:37:43,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2021-11-25 20:37:43,850 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-25 20:37:43,850 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-25 20:37:43,850 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-25 20:37:43,850 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-25 20:37:43,850 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2021-11-25 20:37:43,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2021-11-25 20:37:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2021-11-25 20:37:43,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2021-11-25 20:37:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 20:37:43,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 20:37:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2021-11-25 20:37:43,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2021-11-25 20:37:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2021-11-25 20:37:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2021-11-25 20:37:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 20:37:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 20:37:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2021-11-25 20:37:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2021-11-25 20:37:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-25 20:37:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-25 20:37:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2021-11-25 20:37:43,853 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2021-11-25 20:37:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2021-11-25 20:37:43,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2021-11-25 20:37:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2021-11-25 20:37:43,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2021-11-25 20:37:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2021-11-25 20:37:43,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2021-11-25 20:37:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-25 20:37:43,854 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-25 20:37:43,854 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 20:37:43,854 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 20:37:43,854 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-25 20:37:43,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:37:43,854 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2021-11-25 20:37:43,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2021-11-25 20:37:43,855 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2021-11-25 20:37:43,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2021-11-25 20:37:43,855 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2021-11-25 20:37:43,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2021-11-25 20:37:43,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 20:37:43,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 20:37:43,855 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2021-11-25 20:37:43,855 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2021-11-25 20:37:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-25 20:37:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-25 20:37:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2021-11-25 20:37:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2021-11-25 20:37:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2021-11-25 20:37:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2021-11-25 20:37:45,484 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:37:45,489 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:37:45,630 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 20:38:06,188 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 20:38:06,970 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:38:12,376 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:38:12,376 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-25 20:38:12,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:38:12 BoogieIcfgContainer [2021-11-25 20:38:12,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:38:12,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:38:12,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:38:12,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:38:12,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:37:34" (1/3) ... [2021-11-25 20:38:12,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6a8451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:38:12, skipping insertion in model container [2021-11-25 20:38:12,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:42" (2/3) ... [2021-11-25 20:38:12,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6a8451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:38:12, skipping insertion in model container [2021-11-25 20:38:12,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:38:12" (3/3) ... [2021-11-25 20:38:12,404 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-25 20:38:12,413 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:38:12,414 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 20:38:12,492 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:38:12,507 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=FINITE_AUTOMATA, 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 [2021-11-25 20:38:12,508 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 20:38:12,620 INFO L276 IsEmpty]: Start isEmpty. Operand has 3745 states, 2262 states have (on average 1.3183023872679045) internal successors, (2982), 2325 states have internal predecessors, (2982), 1246 states have call successors, (1246), 236 states have call predecessors, (1246), 235 states have return successors, (1239), 1223 states have call predecessors, (1239), 1239 states have call successors, (1239) [2021-11-25 20:38:12,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-11-25 20:38:12,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:38:12,654 INFO L514 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:38:12,654 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:38:12,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:38:12,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1337038530, now seen corresponding path program 1 times [2021-11-25 20:38:12,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:38:12,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151571267] [2021-11-25 20:38:12,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:38:12,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:38:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:38:14,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2021-11-25 20:38:14,034 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:38:14,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151571267] [2021-11-25 20:38:14,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151571267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:38:14,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:38:14,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:38:14,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712043249] [2021-11-25 20:38:14,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:38:14,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:38:14,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:38:14,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:38:14,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:38:14,079 INFO L87 Difference]: Start difference. First operand has 3745 states, 2262 states have (on average 1.3183023872679045) internal successors, (2982), 2325 states have internal predecessors, (2982), 1246 states have call successors, (1246), 236 states have call predecessors, (1246), 235 states have return successors, (1239), 1223 states have call predecessors, (1239), 1239 states have call successors, (1239) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-25 20:38:19,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:38:25,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:38:26,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:38:31,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:38:33,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:38:33,362 INFO L93 Difference]: Finished difference Result 11082 states and 16189 transitions. [2021-11-25 20:38:33,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:38:33,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 200 [2021-11-25 20:38:33,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:38:33,469 INFO L225 Difference]: With dead ends: 11082 [2021-11-25 20:38:33,470 INFO L226 Difference]: Without dead ends: 7363 [2021-11-25 20:38:33,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:38:33,521 INFO L933 BasicCegarLoop]: 5891 mSDtfsCounter, 5321 mSDsluCounter, 5414 mSDsCounter, 0 mSdLazyCounter, 1560 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5324 SdHoareTripleChecker+Valid, 10544 SdHoareTripleChecker+Invalid, 1569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1560 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:38:33,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5324 Valid, 10544 Invalid, 1569 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1560 Invalid, 2 Unknown, 0 Unchecked, 18.6s Time] [2021-11-25 20:38:33,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7363 states. [2021-11-25 20:38:34,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7363 to 7360. [2021-11-25 20:38:34,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7360 states, 4454 states have (on average 1.31656937584194) internal successors, (5864), 4580 states have internal predecessors, (5864), 2437 states have call successors, (2437), 468 states have call predecessors, (2437), 467 states have return successors, (2437), 2401 states have call predecessors, (2437), 2434 states have call successors, (2437) [2021-11-25 20:38:34,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7360 states to 7360 states and 10738 transitions. [2021-11-25 20:38:34,158 INFO L78 Accepts]: Start accepts. Automaton has 7360 states and 10738 transitions. Word has length 200 [2021-11-25 20:38:34,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:38:34,163 INFO L470 AbstractCegarLoop]: Abstraction has 7360 states and 10738 transitions. [2021-11-25 20:38:34,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-25 20:38:34,165 INFO L276 IsEmpty]: Start isEmpty. Operand 7360 states and 10738 transitions. [2021-11-25 20:38:34,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-25 20:38:34,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:38:34,186 INFO L514 BasicCegarLoop]: trace histogram [21, 19, 19, 19, 19, 19, 19, 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] [2021-11-25 20:38:34,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:38:34,187 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:38:34,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:38:34,189 INFO L85 PathProgramCache]: Analyzing trace with hash -553416049, now seen corresponding path program 1 times [2021-11-25 20:38:34,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:38:34,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521709270] [2021-11-25 20:38:34,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:38:34,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:38:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:38:34,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1448 trivial. 0 not checked. [2021-11-25 20:38:34,914 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:38:34,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521709270] [2021-11-25 20:38:34,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521709270] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:38:34,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:38:34,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:38:34,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793185571] [2021-11-25 20:38:34,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:38:34,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:38:34,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:38:34,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:38:34,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:38:34,919 INFO L87 Difference]: Start difference. First operand 7360 states and 10738 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-25 20:38:40,124 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:38:43,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:38:47,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:38:49,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:38:50,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:38:53,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:38:56,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:38:56,616 INFO L93 Difference]: Finished difference Result 18994 states and 27648 transitions. [2021-11-25 20:38:56,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:38:56,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 237 [2021-11-25 20:38:56,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:38:56,719 INFO L225 Difference]: With dead ends: 18994 [2021-11-25 20:38:56,720 INFO L226 Difference]: Without dead ends: 11671 [2021-11-25 20:38:56,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:38:56,771 INFO L933 BasicCegarLoop]: 6214 mSDtfsCounter, 4672 mSDsluCounter, 5375 mSDsCounter, 0 mSdLazyCounter, 1699 mSolverCounterSat, 19 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4674 SdHoareTripleChecker+Valid, 10835 SdHoareTripleChecker+Invalid, 1722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1699 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:38:56,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4674 Valid, 10835 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1699 Invalid, 4 Unknown, 0 Unchecked, 21.1s Time] [2021-11-25 20:38:56,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11671 states. [2021-11-25 20:38:57,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11671 to 11662. [2021-11-25 20:38:57,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11662 states, 7127 states have (on average 1.3201908236284552) internal successors, (9409), 7337 states have internal predecessors, (9409), 3757 states have call successors, (3757), 778 states have call predecessors, (3757), 776 states have return successors, (3759), 3694 states have call predecessors, (3759), 3754 states have call successors, (3759) [2021-11-25 20:38:57,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11662 states to 11662 states and 16925 transitions. [2021-11-25 20:38:57,591 INFO L78 Accepts]: Start accepts. Automaton has 11662 states and 16925 transitions. Word has length 237 [2021-11-25 20:38:57,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:38:57,593 INFO L470 AbstractCegarLoop]: Abstraction has 11662 states and 16925 transitions. [2021-11-25 20:38:57,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-25 20:38:57,594 INFO L276 IsEmpty]: Start isEmpty. Operand 11662 states and 16925 transitions. [2021-11-25 20:38:57,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-25 20:38:57,605 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:38:57,606 INFO L514 BasicCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 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] [2021-11-25 20:38:57,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:38:57,606 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:38:57,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:38:57,607 INFO L85 PathProgramCache]: Analyzing trace with hash 2016365819, now seen corresponding path program 1 times [2021-11-25 20:38:57,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:38:57,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396763074] [2021-11-25 20:38:57,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:38:57,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:38:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:38:58,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2021-11-25 20:38:58,475 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:38:58,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396763074] [2021-11-25 20:38:58,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396763074] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:38:58,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:38:58,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:38:58,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018176699] [2021-11-25 20:38:58,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:38:58,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:38:58,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:38:58,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:38:58,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:38:58,478 INFO L87 Difference]: Start difference. First operand 11662 states and 16925 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 20:39:04,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:39:07,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:10,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:12,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:15,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:19,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:39:21,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:39:22,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:39:22,541 INFO L93 Difference]: Finished difference Result 17813 states and 25583 transitions. [2021-11-25 20:39:22,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:39:22,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 242 [2021-11-25 20:39:22,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:39:22,724 INFO L225 Difference]: With dead ends: 17813 [2021-11-25 20:39:22,725 INFO L226 Difference]: Without dead ends: 17790 [2021-11-25 20:39:22,736 INFO L932 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 [2021-11-25 20:39:22,737 INFO L933 BasicCegarLoop]: 5132 mSDtfsCounter, 5335 mSDsluCounter, 8117 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5338 SdHoareTripleChecker+Valid, 12132 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:39:22,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5338 Valid, 12132 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1885 Invalid, 7 Unknown, 0 Unchecked, 23.6s Time] [2021-11-25 20:39:22,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17790 states. [2021-11-25 20:39:23,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17790 to 17787. [2021-11-25 20:39:23,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17787 states, 10898 states have (on average 1.316204808221692) internal successors, (14344), 11225 states have internal predecessors, (14344), 5591 states have call successors, (5591), 1297 states have call predecessors, (5591), 1297 states have return successors, (5605), 5504 states have call predecessors, (5605), 5591 states have call successors, (5605) [2021-11-25 20:39:23,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17787 states to 17787 states and 25540 transitions. [2021-11-25 20:39:23,819 INFO L78 Accepts]: Start accepts. Automaton has 17787 states and 25540 transitions. Word has length 242 [2021-11-25 20:39:23,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:39:23,821 INFO L470 AbstractCegarLoop]: Abstraction has 17787 states and 25540 transitions. [2021-11-25 20:39:23,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 20:39:23,821 INFO L276 IsEmpty]: Start isEmpty. Operand 17787 states and 25540 transitions. [2021-11-25 20:39:23,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2021-11-25 20:39:23,848 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:39:23,848 INFO L514 BasicCegarLoop]: trace histogram [24, 19, 19, 19, 19, 19, 19, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:39:23,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:39:23,849 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:39:23,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:39:23,850 INFO L85 PathProgramCache]: Analyzing trace with hash 31411189, now seen corresponding path program 1 times [2021-11-25 20:39:23,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:39:23,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652410430] [2021-11-25 20:39:23,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:39:23,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:39:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:39:24,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1610 trivial. 0 not checked. [2021-11-25 20:39:24,544 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:39:24,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652410430] [2021-11-25 20:39:24,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652410430] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:39:24,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:39:24,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:39:24,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765488055] [2021-11-25 20:39:24,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:39:24,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:39:24,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:39:24,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:39:24,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:39:24,546 INFO L87 Difference]: Start difference. First operand 17787 states and 25540 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-25 20:39:26,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:32,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:39:35,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:38,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:39,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:43,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:39:43,346 INFO L93 Difference]: Finished difference Result 32507 states and 46767 transitions. [2021-11-25 20:39:43,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:39:43,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 284 [2021-11-25 20:39:43,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:39:43,488 INFO L225 Difference]: With dead ends: 32507 [2021-11-25 20:39:43,488 INFO L226 Difference]: Without dead ends: 22530 [2021-11-25 20:39:43,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:39:43,559 INFO L933 BasicCegarLoop]: 8613 mSDtfsCounter, 4648 mSDsluCounter, 5350 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 15 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4650 SdHoareTripleChecker+Valid, 13209 SdHoareTripleChecker+Invalid, 2279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:39:43,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4650 Valid, 13209 Invalid, 2279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2261 Invalid, 3 Unknown, 0 Unchecked, 18.3s Time] [2021-11-25 20:39:43,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22530 states. [2021-11-25 20:39:44,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22530 to 22527. [2021-11-25 20:39:44,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22527 states, 13809 states have (on average 1.3169671953074082) internal successors, (18186), 14224 states have internal predecessors, (18186), 7082 states have call successors, (7082), 1635 states have call predecessors, (7082), 1635 states have return successors, (7101), 6970 states have call predecessors, (7101), 7082 states have call successors, (7101) [2021-11-25 20:39:44,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22527 states to 22527 states and 32369 transitions. [2021-11-25 20:39:44,808 INFO L78 Accepts]: Start accepts. Automaton has 22527 states and 32369 transitions. Word has length 284 [2021-11-25 20:39:44,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:39:44,812 INFO L470 AbstractCegarLoop]: Abstraction has 22527 states and 32369 transitions. [2021-11-25 20:39:44,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-25 20:39:44,813 INFO L276 IsEmpty]: Start isEmpty. Operand 22527 states and 32369 transitions. [2021-11-25 20:39:44,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2021-11-25 20:39:44,870 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:39:44,870 INFO L514 BasicCegarLoop]: trace histogram [26, 19, 19, 19, 19, 19, 19, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:39:44,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:39:44,871 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:39:44,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:39:44,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1196975570, now seen corresponding path program 1 times [2021-11-25 20:39:44,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:39:44,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87648611] [2021-11-25 20:39:44,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:39:44,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:39:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:39:45,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1821 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1821 trivial. 0 not checked. [2021-11-25 20:39:45,844 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:39:45,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87648611] [2021-11-25 20:39:45,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87648611] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:39:45,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:39:45,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:39:45,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789391661] [2021-11-25 20:39:45,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:39:45,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:39:45,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:39:45,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:39:45,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:39:45,847 INFO L87 Difference]: Start difference. First operand 22527 states and 32369 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-25 20:39:51,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:39:53,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:55,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:59,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:40:00,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:40:08,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 20:40:12,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:40:14,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:40:17,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:40:17,809 INFO L93 Difference]: Finished difference Result 40889 states and 59384 transitions. [2021-11-25 20:40:17,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:40:17,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 346 [2021-11-25 20:40:17,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:40:18,037 INFO L225 Difference]: With dead ends: 40889 [2021-11-25 20:40:18,038 INFO L226 Difference]: Without dead ends: 40887 [2021-11-25 20:40:18,057 INFO L932 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 [2021-11-25 20:40:18,057 INFO L933 BasicCegarLoop]: 7156 mSDtfsCounter, 6900 mSDsluCounter, 13807 mSDsCounter, 0 mSdLazyCounter, 3054 mSolverCounterSat, 295 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7199 SdHoareTripleChecker+Valid, 19200 SdHoareTripleChecker+Invalid, 3354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 3054 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:40:18,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7199 Valid, 19200 Invalid, 3354 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [295 Valid, 3054 Invalid, 5 Unknown, 0 Unchecked, 31.0s Time] [2021-11-25 20:40:18,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40887 states. [2021-11-25 20:40:20,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40887 to 39040. [2021-11-25 20:40:20,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39040 states, 23986 states have (on average 1.3200200116734762) internal successors, (31662), 24693 states have internal predecessors, (31662), 12374 states have call successors, (12374), 2679 states have call predecessors, (12374), 2679 states have return successors, (12411), 12177 states have call predecessors, (12411), 12374 states have call successors, (12411) [2021-11-25 20:40:20,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39040 states to 39040 states and 56447 transitions. [2021-11-25 20:40:20,628 INFO L78 Accepts]: Start accepts. Automaton has 39040 states and 56447 transitions. Word has length 346 [2021-11-25 20:40:20,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:40:20,629 INFO L470 AbstractCegarLoop]: Abstraction has 39040 states and 56447 transitions. [2021-11-25 20:40:20,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-25 20:40:20,630 INFO L276 IsEmpty]: Start isEmpty. Operand 39040 states and 56447 transitions. [2021-11-25 20:40:20,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2021-11-25 20:40:20,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:40:20,899 INFO L514 BasicCegarLoop]: trace histogram [32, 21, 21, 21, 21, 21, 21, 13, 13, 7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:40:20,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:40:20,900 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:40:20,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:40:20,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1657528114, now seen corresponding path program 1 times [2021-11-25 20:40:20,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:40:20,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334757543] [2021-11-25 20:40:20,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:40:20,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:40:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:40:21,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2767 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 2703 trivial. 0 not checked. [2021-11-25 20:40:21,987 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:40:21,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334757543] [2021-11-25 20:40:21,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334757543] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:40:21,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:40:21,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:40:21,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077717967] [2021-11-25 20:40:21,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:40:21,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:40:21,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:40:21,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:40:21,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:40:21,992 INFO L87 Difference]: Start difference. First operand 39040 states and 56447 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 3 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) [2021-11-25 20:40:24,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:40:26,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:40:29,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:40:33,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:40:37,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:40:41,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:40:41,124 INFO L93 Difference]: Finished difference Result 82484 states and 119215 transitions. [2021-11-25 20:40:41,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:40:41,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 3 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) Word has length 665 [2021-11-25 20:40:41,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:40:41,433 INFO L225 Difference]: With dead ends: 82484 [2021-11-25 20:40:41,433 INFO L226 Difference]: Without dead ends: 43481 [2021-11-25 20:40:41,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:40:41,599 INFO L933 BasicCegarLoop]: 5480 mSDtfsCounter, 3082 mSDsluCounter, 5304 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3085 SdHoareTripleChecker+Valid, 10069 SdHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:40:41,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3085 Valid, 10069 Invalid, 1619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1609 Invalid, 3 Unknown, 0 Unchecked, 17.6s Time] [2021-11-25 20:40:41,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43481 states. [2021-11-25 20:40:43,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43481 to 43472. [2021-11-25 20:40:43,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43472 states, 26780 states have (on average 1.319865571321882) internal successors, (35346), 27544 states have internal predecessors, (35346), 13687 states have call successors, (13687), 3006 states have call predecessors, (13687), 3004 states have return successors, (13732), 13469 states have call predecessors, (13732), 13687 states have call successors, (13732) [2021-11-25 20:40:43,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43472 states to 43472 states and 62765 transitions. [2021-11-25 20:40:43,811 INFO L78 Accepts]: Start accepts. Automaton has 43472 states and 62765 transitions. Word has length 665 [2021-11-25 20:40:43,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:40:43,814 INFO L470 AbstractCegarLoop]: Abstraction has 43472 states and 62765 transitions. [2021-11-25 20:40:43,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 3 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) [2021-11-25 20:40:43,814 INFO L276 IsEmpty]: Start isEmpty. Operand 43472 states and 62765 transitions. [2021-11-25 20:40:44,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2021-11-25 20:40:44,193 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:40:44,194 INFO L514 BasicCegarLoop]: trace histogram [34, 21, 21, 21, 21, 21, 21, 17, 17, 8, 8, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:40:44,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:40:44,195 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:40:44,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:40:44,196 INFO L85 PathProgramCache]: Analyzing trace with hash -222869875, now seen corresponding path program 1 times [2021-11-25 20:40:44,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:40:44,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627743866] [2021-11-25 20:40:44,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:40:44,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:40:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:40:45,338 INFO L134 CoverageAnalysis]: Checked inductivity of 3128 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 3058 trivial. 0 not checked. [2021-11-25 20:40:45,338 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:40:45,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627743866] [2021-11-25 20:40:45,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627743866] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:40:45,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:40:45,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:40:45,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113629419] [2021-11-25 20:40:45,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:40:45,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:40:45,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:40:45,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:40:45,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:40:45,342 INFO L87 Difference]: Start difference. First operand 43472 states and 62765 transitions. Second operand has 5 states, 5 states have (on average 55.6) internal successors, (278), 4 states have internal predecessors, (278), 2 states have call successors, (102), 1 states have call predecessors, (102), 3 states have return successors, (102), 3 states have call predecessors, (102), 2 states have call successors, (102) [2021-11-25 20:40:49,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:40:52,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:40:54,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:40:56,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:40:58,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:41:04,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:41:11,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:41:11,461 INFO L93 Difference]: Finished difference Result 87075 states and 126651 transitions. [2021-11-25 20:41:11,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:41:11,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.6) internal successors, (278), 4 states have internal predecessors, (278), 2 states have call successors, (102), 1 states have call predecessors, (102), 3 states have return successors, (102), 3 states have call predecessors, (102), 2 states have call successors, (102) Word has length 790 [2021-11-25 20:41:11,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:41:11,721 INFO L225 Difference]: With dead ends: 87075 [2021-11-25 20:41:11,722 INFO L226 Difference]: Without dead ends: 43640 [2021-11-25 20:41:11,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:41:11,879 INFO L933 BasicCegarLoop]: 4649 mSDtfsCounter, 5 mSDsluCounter, 16234 mSDsCounter, 0 mSdLazyCounter, 3082 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 18583 SdHoareTripleChecker+Invalid, 3088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3082 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:41:11,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 18583 Invalid, 3088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3082 Invalid, 3 Unknown, 0 Unchecked, 24.8s Time] [2021-11-25 20:41:11,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43640 states. [2021-11-25 20:41:13,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43640 to 43556. [2021-11-25 20:41:13,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43556 states, 26843 states have (on average 1.3191148530343106) internal successors, (35409), 27607 states have internal predecessors, (35409), 13687 states have call successors, (13687), 3006 states have call predecessors, (13687), 3025 states have return successors, (14003), 13490 states have call predecessors, (14003), 13687 states have call successors, (14003) [2021-11-25 20:41:13,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43556 states to 43556 states and 63099 transitions. [2021-11-25 20:41:13,762 INFO L78 Accepts]: Start accepts. Automaton has 43556 states and 63099 transitions. Word has length 790 [2021-11-25 20:41:13,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:41:13,763 INFO L470 AbstractCegarLoop]: Abstraction has 43556 states and 63099 transitions. [2021-11-25 20:41:13,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.6) internal successors, (278), 4 states have internal predecessors, (278), 2 states have call successors, (102), 1 states have call predecessors, (102), 3 states have return successors, (102), 3 states have call predecessors, (102), 2 states have call successors, (102) [2021-11-25 20:41:13,764 INFO L276 IsEmpty]: Start isEmpty. Operand 43556 states and 63099 transitions. [2021-11-25 20:41:14,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2021-11-25 20:41:14,088 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:41:14,089 INFO L514 BasicCegarLoop]: trace histogram [34, 21, 21, 21, 21, 21, 21, 17, 17, 8, 8, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:41:14,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:41:14,089 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:41:14,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:41:14,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1496123530, now seen corresponding path program 1 times [2021-11-25 20:41:14,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:41:14,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46627970] [2021-11-25 20:41:14,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:41:14,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:41:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:41:15,143 INFO L134 CoverageAnalysis]: Checked inductivity of 3128 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 3050 trivial. 0 not checked. [2021-11-25 20:41:15,144 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:41:15,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46627970] [2021-11-25 20:41:15,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46627970] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:41:15,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:41:15,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:41:15,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189811574] [2021-11-25 20:41:15,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:41:15,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:41:15,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:41:15,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:41:15,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:41:15,147 INFO L87 Difference]: Start difference. First operand 43556 states and 63099 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 3 states have call successors, (104), 1 states have call predecessors, (104), 1 states have return successors, (104), 3 states have call predecessors, (104), 3 states have call successors, (104) [2021-11-25 20:41:18,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:41:20,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:41:22,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:41:24,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:41:26,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:41:27,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:41:30,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:41:34,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:41:39,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:41:39,020 INFO L93 Difference]: Finished difference Result 97985 states and 141890 transitions. [2021-11-25 20:41:39,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:41:39,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 3 states have call successors, (104), 1 states have call predecessors, (104), 1 states have return successors, (104), 3 states have call predecessors, (104), 3 states have call successors, (104) Word has length 795 [2021-11-25 20:41:39,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:41:39,320 INFO L225 Difference]: With dead ends: 97985 [2021-11-25 20:41:39,320 INFO L226 Difference]: Without dead ends: 55232 [2021-11-25 20:41:39,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:41:39,508 INFO L933 BasicCegarLoop]: 7334 mSDtfsCounter, 3186 mSDsluCounter, 5315 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3192 SdHoareTripleChecker+Valid, 11933 SdHoareTripleChecker+Invalid, 2051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:41:39,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3192 Valid, 11933 Invalid, 2051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2043 Invalid, 4 Unknown, 0 Unchecked, 22.3s Time] [2021-11-25 20:41:39,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55232 states. [2021-11-25 20:41:41,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55232 to 55221. [2021-11-25 20:41:41,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55221 states, 34129 states have (on average 1.3215154267631632) internal successors, (45102), 35089 states have internal predecessors, (45102), 17194 states have call successors, (17194), 3872 states have call predecessors, (17194), 3897 states have return successors, (17602), 16946 states have call predecessors, (17602), 17194 states have call successors, (17602) [2021-11-25 20:41:41,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55221 states to 55221 states and 79898 transitions. [2021-11-25 20:41:41,658 INFO L78 Accepts]: Start accepts. Automaton has 55221 states and 79898 transitions. Word has length 795 [2021-11-25 20:41:41,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:41:41,659 INFO L470 AbstractCegarLoop]: Abstraction has 55221 states and 79898 transitions. [2021-11-25 20:41:41,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 3 states have call successors, (104), 1 states have call predecessors, (104), 1 states have return successors, (104), 3 states have call predecessors, (104), 3 states have call successors, (104) [2021-11-25 20:41:41,660 INFO L276 IsEmpty]: Start isEmpty. Operand 55221 states and 79898 transitions. [2021-11-25 20:41:42,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 818 [2021-11-25 20:41:42,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:41:42,039 INFO L514 BasicCegarLoop]: trace histogram [36, 21, 21, 21, 21, 21, 21, 17, 17, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:41:42,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 20:41:42,039 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:41:42,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:41:42,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1077735892, now seen corresponding path program 1 times [2021-11-25 20:41:42,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:41:42,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518300547] [2021-11-25 20:41:42,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:41:42,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:41:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:41:43,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3294 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 3202 trivial. 0 not checked. [2021-11-25 20:41:43,107 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:41:43,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518300547] [2021-11-25 20:41:43,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518300547] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:41:43,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:41:43,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:41:43,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974201621] [2021-11-25 20:41:43,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:41:43,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:41:43,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:41:43,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:41:43,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:41:43,113 INFO L87 Difference]: Start difference. First operand 55221 states and 79898 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 4 states have internal predecessors, (296), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2021-11-25 20:41:46,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:41:49,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:41:51,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:41:53,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:42:00,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:42:09,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:42:14,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:42:14,345 INFO L93 Difference]: Finished difference Result 118033 states and 170732 transitions. [2021-11-25 20:42:14,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:42:14,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 4 states have internal predecessors, (296), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) Word has length 817 [2021-11-25 20:42:14,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:42:14,840 INFO L225 Difference]: With dead ends: 118033 [2021-11-25 20:42:14,840 INFO L226 Difference]: Without dead ends: 63615 [2021-11-25 20:42:15,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:42:15,045 INFO L933 BasicCegarLoop]: 7325 mSDtfsCounter, 3125 mSDsluCounter, 22371 mSDsCounter, 0 mSdLazyCounter, 4475 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3131 SdHoareTripleChecker+Valid, 26576 SdHoareTripleChecker+Invalid, 4481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4475 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:42:15,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3131 Valid, 26576 Invalid, 4481 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 4475 Invalid, 5 Unknown, 0 Unchecked, 29.3s Time] [2021-11-25 20:42:15,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63615 states. [2021-11-25 20:42:17,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63615 to 63593. [2021-11-25 20:42:17,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63593 states, 39316 states have (on average 1.3209380404924205) internal successors, (51934), 40407 states have internal predecessors, (51934), 19769 states have call successors, (19769), 4472 states have call predecessors, (19769), 4507 states have return successors, (20251), 19493 states have call predecessors, (20251), 19769 states have call successors, (20251) [2021-11-25 20:42:17,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63593 states to 63593 states and 91954 transitions. [2021-11-25 20:42:17,488 INFO L78 Accepts]: Start accepts. Automaton has 63593 states and 91954 transitions. Word has length 817 [2021-11-25 20:42:17,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:42:17,489 INFO L470 AbstractCegarLoop]: Abstraction has 63593 states and 91954 transitions. [2021-11-25 20:42:17,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 4 states have internal predecessors, (296), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2021-11-25 20:42:17,489 INFO L276 IsEmpty]: Start isEmpty. Operand 63593 states and 91954 transitions. [2021-11-25 20:42:18,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 819 [2021-11-25 20:42:18,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:42:18,022 INFO L514 BasicCegarLoop]: trace histogram [36, 21, 21, 21, 21, 21, 21, 17, 17, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:42:18,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 20:42:18,022 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:42:18,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:42:18,023 INFO L85 PathProgramCache]: Analyzing trace with hash 2094210334, now seen corresponding path program 1 times [2021-11-25 20:42:18,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:42:18,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473017418] [2021-11-25 20:42:18,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:42:18,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:42:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:42:19,117 INFO L134 CoverageAnalysis]: Checked inductivity of 3294 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 3202 trivial. 0 not checked. [2021-11-25 20:42:19,117 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:42:19,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473017418] [2021-11-25 20:42:19,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473017418] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:42:19,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:42:19,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:42:19,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315965552] [2021-11-25 20:42:19,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:42:19,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:42:19,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:42:19,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:42:19,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:42:19,121 INFO L87 Difference]: Start difference. First operand 63593 states and 91954 transitions. Second operand has 5 states, 5 states have (on average 59.4) internal successors, (297), 4 states have internal predecessors, (297), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2021-11-25 20:42:22,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:42:25,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:42:27,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:42:29,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:42:32,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:42:34,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:42:35,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:42:37,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:42:42,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:42:56,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:42:58,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:43:03,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:43:03,114 INFO L93 Difference]: Finished difference Result 134803 states and 194884 transitions. [2021-11-25 20:43:03,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:43:03,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 4 states have internal predecessors, (297), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) Word has length 818 [2021-11-25 20:43:03,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:43:03,584 INFO L225 Difference]: With dead ends: 134803 [2021-11-25 20:43:03,585 INFO L226 Difference]: Without dead ends: 72013 [2021-11-25 20:43:03,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:43:03,755 INFO L933 BasicCegarLoop]: 7332 mSDtfsCounter, 3127 mSDsluCounter, 22387 mSDsCounter, 0 mSdLazyCounter, 4484 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3133 SdHoareTripleChecker+Valid, 26595 SdHoareTripleChecker+Invalid, 4495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4484 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:43:03,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3133 Valid, 26595 Invalid, 4495 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 4484 Invalid, 8 Unknown, 0 Unchecked, 41.8s Time] [2021-11-25 20:43:03,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72013 states. [2021-11-25 20:43:06,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72013 to 71991. [2021-11-25 20:43:06,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71991 states, 44525 states have (on average 1.3203368893879843) internal successors, (58788), 45747 states have internal predecessors, (58788), 22344 states have call successors, (22344), 5076 states have call predecessors, (22344), 5121 states have return successors, (22900), 22040 states have call predecessors, (22900), 22344 states have call successors, (22900) [2021-11-25 20:43:06,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71991 states to 71991 states and 104032 transitions. [2021-11-25 20:43:06,635 INFO L78 Accepts]: Start accepts. Automaton has 71991 states and 104032 transitions. Word has length 818 [2021-11-25 20:43:06,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:43:06,640 INFO L470 AbstractCegarLoop]: Abstraction has 71991 states and 104032 transitions. [2021-11-25 20:43:06,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 4 states have internal predecessors, (297), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2021-11-25 20:43:06,640 INFO L276 IsEmpty]: Start isEmpty. Operand 71991 states and 104032 transitions. [2021-11-25 20:43:06,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2021-11-25 20:43:06,838 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:43:06,839 INFO L514 BasicCegarLoop]: trace histogram [36, 21, 21, 21, 21, 21, 21, 17, 17, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:43:06,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 20:43:06,839 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:43:06,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:43:06,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1425256998, now seen corresponding path program 1 times [2021-11-25 20:43:06,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:43:06,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30220658] [2021-11-25 20:43:06,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:43:06,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:43:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:43:07,880 INFO L134 CoverageAnalysis]: Checked inductivity of 3294 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 3202 trivial. 0 not checked. [2021-11-25 20:43:07,880 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:43:07,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30220658] [2021-11-25 20:43:07,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30220658] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:43:07,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:43:07,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:43:07,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592202689] [2021-11-25 20:43:07,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:43:07,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:43:07,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:43:07,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:43:07,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:43:07,885 INFO L87 Difference]: Start difference. First operand 71991 states and 104032 transitions. Second operand has 5 states, 5 states have (on average 59.6) internal successors, (298), 4 states have internal predecessors, (298), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2021-11-25 20:43:11,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:43:14,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:43:17,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:43:18,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:43:20,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:43:23,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:43:40,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:43:44,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:43:44,226 INFO L93 Difference]: Finished difference Result 154713 states and 223460 transitions. [2021-11-25 20:43:44,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:43:44,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.6) internal successors, (298), 4 states have internal predecessors, (298), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) Word has length 819 [2021-11-25 20:43:44,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:43:44,581 INFO L225 Difference]: With dead ends: 154713 [2021-11-25 20:43:44,581 INFO L226 Difference]: Without dead ends: 83525 [2021-11-25 20:43:44,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:43:44,792 INFO L933 BasicCegarLoop]: 7337 mSDtfsCounter, 3153 mSDsluCounter, 22391 mSDsCounter, 0 mSdLazyCounter, 4505 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3159 SdHoareTripleChecker+Valid, 26599 SdHoareTripleChecker+Invalid, 4515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4505 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:43:44,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3159 Valid, 26599 Invalid, 4515 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 4505 Invalid, 4 Unknown, 0 Unchecked, 33.7s Time] [2021-11-25 20:43:45,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83525 states. [2021-11-25 20:43:47,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83525 to 83502. [2021-11-25 20:43:47,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83502 states, 51659 states have (on average 1.319324803035289) internal successors, (68155), 53074 states have internal predecessors, (68155), 25845 states have call successors, (25845), 5940 states have call predecessors, (25845), 5997 states have return successors, (26502), 25499 states have call predecessors, (26502), 25845 states have call successors, (26502) [2021-11-25 20:43:48,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83502 states to 83502 states and 120502 transitions. [2021-11-25 20:43:48,219 INFO L78 Accepts]: Start accepts. Automaton has 83502 states and 120502 transitions. Word has length 819 [2021-11-25 20:43:48,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:43:48,220 INFO L470 AbstractCegarLoop]: Abstraction has 83502 states and 120502 transitions. [2021-11-25 20:43:48,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.6) internal successors, (298), 4 states have internal predecessors, (298), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2021-11-25 20:43:48,220 INFO L276 IsEmpty]: Start isEmpty. Operand 83502 states and 120502 transitions. [2021-11-25 20:43:48,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 821 [2021-11-25 20:43:48,433 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:43:48,434 INFO L514 BasicCegarLoop]: trace histogram [36, 21, 21, 21, 21, 21, 21, 17, 17, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:43:48,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 20:43:48,435 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:43:48,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:43:48,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1179882172, now seen corresponding path program 1 times [2021-11-25 20:43:48,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:43:48,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376907894] [2021-11-25 20:43:48,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:43:48,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:43:49,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:43:49,535 INFO L134 CoverageAnalysis]: Checked inductivity of 3294 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 3202 trivial. 0 not checked. [2021-11-25 20:43:49,535 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:43:49,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376907894] [2021-11-25 20:43:49,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376907894] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:43:49,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:43:49,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:43:49,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271145622] [2021-11-25 20:43:49,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:43:49,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:43:49,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:43:49,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:43:49,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:43:49,538 INFO L87 Difference]: Start difference. First operand 83502 states and 120502 transitions. Second operand has 5 states, 5 states have (on average 59.8) internal successors, (299), 4 states have internal predecessors, (299), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2021-11-25 20:43:53,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:43:55,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:43:58,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:43:59,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:44:01,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:44:03,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:44:07,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:44:11,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:44:13,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:44:22,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:44:25,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:44:31,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:44:31,073 INFO L93 Difference]: Finished difference Result 177770 states and 256442 transitions. [2021-11-25 20:44:31,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:44:31,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 4 states have internal predecessors, (299), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) Word has length 820 [2021-11-25 20:44:31,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:44:31,741 INFO L225 Difference]: With dead ends: 177770 [2021-11-25 20:44:31,741 INFO L226 Difference]: Without dead ends: 95071 [2021-11-25 20:44:31,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:44:31,995 INFO L933 BasicCegarLoop]: 7336 mSDtfsCounter, 3204 mSDsluCounter, 22340 mSDsCounter, 0 mSdLazyCounter, 4501 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3210 SdHoareTripleChecker+Valid, 26554 SdHoareTripleChecker+Invalid, 4513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4501 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:44:31,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3210 Valid, 26554 Invalid, 4513 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 4501 Invalid, 5 Unknown, 0 Unchecked, 38.5s Time] [2021-11-25 20:44:32,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95071 states. [2021-11-25 20:44:35,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95071 to 95048. [2021-11-25 20:44:35,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95048 states, 58814 states have (on average 1.3184445880232598) internal successors, (77543), 60422 states have internal predecessors, (77543), 29352 states have call successors, (29352), 6812 states have call predecessors, (29352), 6881 states have return successors, (30110), 28964 states have call predecessors, (30110), 29352 states have call successors, (30110) [2021-11-25 20:44:35,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95048 states to 95048 states and 137005 transitions. [2021-11-25 20:44:36,007 INFO L78 Accepts]: Start accepts. Automaton has 95048 states and 137005 transitions. Word has length 820 [2021-11-25 20:44:36,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:44:36,008 INFO L470 AbstractCegarLoop]: Abstraction has 95048 states and 137005 transitions. [2021-11-25 20:44:36,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 4 states have internal predecessors, (299), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2021-11-25 20:44:36,008 INFO L276 IsEmpty]: Start isEmpty. Operand 95048 states and 137005 transitions. [2021-11-25 20:44:36,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 822 [2021-11-25 20:44:36,254 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:44:36,255 INFO L514 BasicCegarLoop]: trace histogram [36, 21, 21, 21, 21, 21, 21, 17, 17, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:44:36,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 20:44:36,255 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:44:36,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:44:36,256 INFO L85 PathProgramCache]: Analyzing trace with hash -631203977, now seen corresponding path program 1 times [2021-11-25 20:44:36,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:44:36,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367069187] [2021-11-25 20:44:36,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:44:36,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:44:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:44:37,377 INFO L134 CoverageAnalysis]: Checked inductivity of 3294 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 3202 trivial. 0 not checked. [2021-11-25 20:44:37,378 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:44:37,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367069187] [2021-11-25 20:44:37,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367069187] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:44:37,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:44:37,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:44:37,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002286648] [2021-11-25 20:44:37,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:44:37,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:44:37,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:44:37,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:44:37,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:44:37,382 INFO L87 Difference]: Start difference. First operand 95048 states and 137005 transitions. Second operand has 5 states, 5 states have (on average 60.0) internal successors, (300), 4 states have internal predecessors, (300), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2021-11-25 20:44:41,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:44:43,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:44:46,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:44:47,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:44:49,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:44:52,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:44:57,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:45:03,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:45:13,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:45:15,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:45:17,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:45:19,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:45:22,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:45:22,888 INFO L93 Difference]: Finished difference Result 197744 states and 285063 transitions. [2021-11-25 20:45:22,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:45:22,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.0) internal successors, (300), 4 states have internal predecessors, (300), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) Word has length 821 [2021-11-25 20:45:22,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:45:23,599 INFO L225 Difference]: With dead ends: 197744 [2021-11-25 20:45:23,599 INFO L226 Difference]: Without dead ends: 103499 [2021-11-25 20:45:23,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:45:23,883 INFO L933 BasicCegarLoop]: 7329 mSDtfsCounter, 3120 mSDsluCounter, 22380 mSDsCounter, 0 mSdLazyCounter, 4495 mSolverCounterSat, 7 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3126 SdHoareTripleChecker+Valid, 26588 SdHoareTripleChecker+Invalid, 4510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4495 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:45:23,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3126 Valid, 26588 Invalid, 4510 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 4495 Invalid, 8 Unknown, 0 Unchecked, 41.9s Time] [2021-11-25 20:45:23,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103499 states. [2021-11-25 20:45:27,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103499 to 103477. [2021-11-25 20:45:27,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103477 states, 64061 states have (on average 1.3180406175364106) internal successors, (84435), 65800 states have internal predecessors, (84435), 31924 states have call successors, (31924), 7412 states have call predecessors, (31924), 7491 states have return successors, (32756), 31508 states have call predecessors, (32756), 31924 states have call successors, (32756) [2021-11-25 20:45:27,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103477 states to 103477 states and 149115 transitions. [2021-11-25 20:45:28,015 INFO L78 Accepts]: Start accepts. Automaton has 103477 states and 149115 transitions. Word has length 821 [2021-11-25 20:45:28,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:45:28,016 INFO L470 AbstractCegarLoop]: Abstraction has 103477 states and 149115 transitions. [2021-11-25 20:45:28,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.0) internal successors, (300), 4 states have internal predecessors, (300), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2021-11-25 20:45:28,017 INFO L276 IsEmpty]: Start isEmpty. Operand 103477 states and 149115 transitions. [2021-11-25 20:45:28,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2021-11-25 20:45:28,636 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:45:28,636 INFO L514 BasicCegarLoop]: trace histogram [36, 21, 21, 21, 21, 21, 21, 17, 17, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:45:28,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 20:45:28,637 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:45:28,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:45:28,637 INFO L85 PathProgramCache]: Analyzing trace with hash 841725967, now seen corresponding path program 1 times [2021-11-25 20:45:28,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:45:28,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919518962] [2021-11-25 20:45:28,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:45:28,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:45:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:45:29,717 INFO L134 CoverageAnalysis]: Checked inductivity of 3294 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 3202 trivial. 0 not checked. [2021-11-25 20:45:29,718 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:45:29,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919518962] [2021-11-25 20:45:29,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919518962] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:45:29,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:45:29,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:45:29,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147273176] [2021-11-25 20:45:29,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:45:29,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:45:29,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:45:29,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:45:29,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:45:29,721 INFO L87 Difference]: Start difference. First operand 103477 states and 149115 transitions. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 4 states have internal predecessors, (301), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2021-11-25 20:45:33,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:45:36,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:45:39,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:45:40,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:45:43,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:45:45,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:45:53,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:46:03,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:46:06,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:46:12,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:46:12,462 INFO L93 Difference]: Finished difference Result 217712 states and 313680 transitions. [2021-11-25 20:46:12,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:46:12,463 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 4 states have internal predecessors, (301), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) Word has length 822 [2021-11-25 20:46:12,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:46:13,234 INFO L225 Difference]: With dead ends: 217712 [2021-11-25 20:46:13,234 INFO L226 Difference]: Without dead ends: 115038 [2021-11-25 20:46:13,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:46:13,555 INFO L933 BasicCegarLoop]: 7337 mSDtfsCounter, 3140 mSDsluCounter, 22404 mSDsCounter, 0 mSdLazyCounter, 4515 mSolverCounterSat, 9 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3146 SdHoareTripleChecker+Valid, 26610 SdHoareTripleChecker+Invalid, 4529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 4515 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:46:13,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3146 Valid, 26610 Invalid, 4529 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 4515 Invalid, 5 Unknown, 0 Unchecked, 39.0s Time] [2021-11-25 20:46:13,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115038 states. [2021-11-25 20:46:17,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115038 to 115015. [2021-11-25 20:46:17,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115015 states, 71222 states have (on average 1.317415966976496) internal successors, (93829), 73154 states have internal predecessors, (93829), 35425 states have call successors, (35425), 8276 states have call predecessors, (35425), 8367 states have return successors, (36358), 34967 states have call predecessors, (36358), 35425 states have call successors, (36358) [2021-11-25 20:46:18,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115015 states to 115015 states and 165612 transitions. [2021-11-25 20:46:18,352 INFO L78 Accepts]: Start accepts. Automaton has 115015 states and 165612 transitions. Word has length 822 [2021-11-25 20:46:18,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:46:18,352 INFO L470 AbstractCegarLoop]: Abstraction has 115015 states and 165612 transitions. [2021-11-25 20:46:18,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 4 states have internal predecessors, (301), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2021-11-25 20:46:18,353 INFO L276 IsEmpty]: Start isEmpty. Operand 115015 states and 165612 transitions. [2021-11-25 20:46:18,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2021-11-25 20:46:18,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:46:18,652 INFO L514 BasicCegarLoop]: trace histogram [36, 21, 21, 21, 21, 21, 21, 17, 17, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:46:18,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 20:46:18,652 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:46:18,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:46:18,653 INFO L85 PathProgramCache]: Analyzing trace with hash -2109316421, now seen corresponding path program 1 times [2021-11-25 20:46:18,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:46:18,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425944956] [2021-11-25 20:46:18,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:46:18,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:46:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:46:19,730 INFO L134 CoverageAnalysis]: Checked inductivity of 3294 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 3202 trivial. 0 not checked. [2021-11-25 20:46:19,730 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:46:19,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425944956] [2021-11-25 20:46:19,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425944956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:46:19,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:46:19,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:46:19,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267033069] [2021-11-25 20:46:19,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:46:19,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:46:19,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:46:19,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:46:19,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:46:19,733 INFO L87 Difference]: Start difference. First operand 115015 states and 165612 transitions. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 4 states have internal predecessors, (302), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2021-11-25 20:46:24,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:46:26,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:46:29,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:46:32,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:46:34,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:46:37,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []