./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d624afd2-6cf9-431f-a25a-aad4dd4c416e/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d624afd2-6cf9-431f-a25a-aad4dd4c416e/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d624afd2-6cf9-431f-a25a-aad4dd4c416e/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d624afd2-6cf9-431f-a25a-aad4dd4c416e/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d624afd2-6cf9-431f-a25a-aad4dd4c416e/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d624afd2-6cf9-431f-a25a-aad4dd4c416e/bin/utaipan-I9t0OCRTmS --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 5402abc3421e66b1eb1ff4aae98a8f753c1d0c37db1cbdc24eb3404edec561ce --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:05:39,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:05:39,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:05:39,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:05:39,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:05:39,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:05:39,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:05:39,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:05:39,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:05:39,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:05:39,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:05:39,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:05:39,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:05:39,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:05:39,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:05:39,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:05:39,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:05:39,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:05:39,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:05:39,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:05:39,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:05:39,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:05:39,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:05:39,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:05:39,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:05:39,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:05:39,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:05:39,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:05:39,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:05:39,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:05:39,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:05:39,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:05:39,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:05:39,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:05:39,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:05:39,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:05:39,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:05:39,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:05:39,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:05:39,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:05:39,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:05:39,829 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d624afd2-6cf9-431f-a25a-aad4dd4c416e/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:05:39,869 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:05:39,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:05:39,870 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:05:39,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:05:39,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:05:39,872 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:05:39,872 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:05:39,872 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:05:39,872 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:05:39,873 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:05:39,874 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:05:39,874 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:05:39,874 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:05:39,874 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:05:39,875 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:05:39,875 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:05:39,875 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:05:39,875 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:05:39,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:05:39,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:05:39,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:05:39,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:05:39,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:05:39,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:05:39,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:05:39,879 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:05:39,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:05:39,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:05:39,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:05:39,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:05:39,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:05:39,881 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:05:39,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:05:39,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:05:39,881 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:05:39,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:05:39,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:05:39,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:05:39,882 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d624afd2-6cf9-431f-a25a-aad4dd4c416e/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d624afd2-6cf9-431f-a25a-aad4dd4c416e/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5402abc3421e66b1eb1ff4aae98a8f753c1d0c37db1cbdc24eb3404edec561ce [2022-11-19 08:05:40,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:05:40,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:05:40,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:05:40,215 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:05:40,216 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:05:40,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d624afd2-6cf9-431f-a25a-aad4dd4c416e/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i [2022-11-19 08:05:40,281 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d624afd2-6cf9-431f-a25a-aad4dd4c416e/bin/utaipan-I9t0OCRTmS/data/87ba82328/3834d6fcbfc44f17ad7eda99d818dcc1/FLAGfc8de9e27 [2022-11-19 08:05:41,324 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:05:41,324 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d624afd2-6cf9-431f-a25a-aad4dd4c416e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i [2022-11-19 08:05:41,417 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d624afd2-6cf9-431f-a25a-aad4dd4c416e/bin/utaipan-I9t0OCRTmS/data/87ba82328/3834d6fcbfc44f17ad7eda99d818dcc1/FLAGfc8de9e27 [2022-11-19 08:05:41,613 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d624afd2-6cf9-431f-a25a-aad4dd4c416e/bin/utaipan-I9t0OCRTmS/data/87ba82328/3834d6fcbfc44f17ad7eda99d818dcc1 [2022-11-19 08:05:41,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:05:41,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:05:41,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:05:41,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:05:41,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:05:41,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:41" (1/1) ... [2022-11-19 08:05:41,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43d29fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:41, skipping insertion in model container [2022-11-19 08:05:41,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:41" (1/1) ... [2022-11-19 08:05:41,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:05:41,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:05:45,945 WARN L234 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_d624afd2-6cf9-431f-a25a-aad4dd4c416e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i[510260,510273] [2022-11-19 08:05:45,951 WARN L234 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_d624afd2-6cf9-431f-a25a-aad4dd4c416e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i[510405,510418] [2022-11-19 08:05:45,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:05:46,069 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:05:46,838 WARN L234 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_d624afd2-6cf9-431f-a25a-aad4dd4c416e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i[510260,510273] [2022-11-19 08:05:46,839 WARN L234 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_d624afd2-6cf9-431f-a25a-aad4dd4c416e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i[510405,510418] [2022-11-19 08:05:46,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:05:47,064 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:05:47,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47 WrapperNode [2022-11-19 08:05:47,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:05:47,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:05:47,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:05:47,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:05:47,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2022-11-19 08:05:47,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2022-11-19 08:05:47,750 INFO L138 Inliner]: procedures = 486, calls = 6649, calls flagged for inlining = 236, calls inlined = 219, statements flattened = 12160 [2022-11-19 08:05:47,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:05:47,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:05:47,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:05:47,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:05:47,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2022-11-19 08:05:47,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2022-11-19 08:05:47,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2022-11-19 08:05:47,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2022-11-19 08:05:48,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2022-11-19 08:05:48,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2022-11-19 08:05:48,684 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2022-11-19 08:05:48,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2022-11-19 08:05:48,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:05:48,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:05:48,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:05:48,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:05:48,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2022-11-19 08:05:48,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:05:48,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d624afd2-6cf9-431f-a25a-aad4dd4c416e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:05:48,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d624afd2-6cf9-431f-a25a-aad4dd4c416e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:05:48,969 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_streamoff [2022-11-19 08:05:48,969 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_streamoff [2022-11-19 08:05:48,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d624afd2-6cf9-431f-a25a-aad4dd4c416e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:05:48,978 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2022-11-19 08:05:48,980 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2022-11-19 08:05:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure SAA7146_IER_DISABLE___0 [2022-11-19 08:05:48,981 INFO L138 BoogieDeclarations]: Found implementation of procedure SAA7146_IER_DISABLE___0 [2022-11-19 08:05:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_reqbufs [2022-11-19 08:05:48,981 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_reqbufs [2022-11-19 08:05:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 08:05:48,981 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 08:05:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fmt_vid_cap [2022-11-19 08:05:48,981 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fmt_vid_cap [2022-11-19 08:05:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:05:48,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:05:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_fmt_vid_cap [2022-11-19 08:05:48,982 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_fmt_vid_cap [2022-11-19 08:05:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2022-11-19 08:05:48,982 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2022-11-19 08:05:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_set_window [2022-11-19 08:05:48,982 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_set_window [2022-11-19 08:05:48,983 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-19 08:05:48,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-19 08:05:48,983 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_res_get [2022-11-19 08:05:48,983 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_res_get [2022-11-19 08:05:48,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-11-19 08:05:48,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-11-19 08:05:48,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_64 [2022-11-19 08:05:48,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_64 [2022-11-19 08:05:48,983 INFO L130 BoogieDeclarations]: Found specification of procedure video_end [2022-11-19 08:05:48,984 INFO L138 BoogieDeclarations]: Found implementation of procedure video_end [2022-11-19 08:05:48,984 INFO L130 BoogieDeclarations]: Found specification of procedure arch_spin_is_locked [2022-11-19 08:05:48,984 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_spin_is_locked [2022-11-19 08:05:48,984 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_dma [2022-11-19 08:05:48,984 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_dma [2022-11-19 08:05:48,984 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_cap [2022-11-19 08:05:48,984 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_cap [2022-11-19 08:05:48,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_saa7146_vv_cleanup_module_9_2 [2022-11-19 08:05:48,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_saa7146_vv_cleanup_module_9_2 [2022-11-19 08:05:48,985 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_buffer_queue [2022-11-19 08:05:48,985 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_buffer_queue [2022-11-19 08:05:48,985 INFO L130 BoogieDeclarations]: Found specification of procedure video_close [2022-11-19 08:05:48,985 INFO L138 BoogieDeclarations]: Found implementation of procedure video_close [2022-11-19 08:05:48,985 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_open [2022-11-19 08:05:48,985 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_open [2022-11-19 08:05:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_std [2022-11-19 08:05:48,986 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_std [2022-11-19 08:05:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_pgtable_alloc [2022-11-19 08:05:48,986 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_pgtable_alloc [2022-11-19 08:05:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 08:05:48,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 08:05:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2022-11-19 08:05:48,987 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2022-11-19 08:05:48,987 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 08:05:48,987 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 08:05:48,987 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_irq_done [2022-11-19 08:05:48,987 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_irq_done [2022-11-19 08:05:48,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2022-11-19 08:05:48,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2022-11-19 08:05:48,988 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-11-19 08:05:48,988 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-11-19 08:05:48,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 08:05:48,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 08:05:48,988 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querybuf [2022-11-19 08:05:48,988 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querybuf [2022-11-19 08:05:48,988 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 08:05:48,989 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 08:05:48,989 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-19 08:05:48,989 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-19 08:05:48,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:05:48,989 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_overlay [2022-11-19 08:05:48,989 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_overlay [2022-11-19 08:05:48,989 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_dqbuf [2022-11-19 08:05:48,990 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_dqbuf [2022-11-19 08:05:48,990 INFO L130 BoogieDeclarations]: Found specification of procedure video_irq_done [2022-11-19 08:05:48,990 INFO L138 BoogieDeclarations]: Found implementation of procedure video_irq_done [2022-11-19 08:05:48,990 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-19 08:05:48,990 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-19 08:05:48,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_slock_of_saa7146_dev [2022-11-19 08:05:48,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_slock_of_saa7146_dev [2022-11-19 08:05:48,991 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fmt_vid_overlay [2022-11-19 08:05:48,991 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fmt_vid_overlay [2022-11-19 08:05:48,991 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_cap [2022-11-19 08:05:48,991 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_cap [2022-11-19 08:05:48,991 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-19 08:05:48,991 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-19 08:05:48,991 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 08:05:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 08:05:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure sort_and_eliminate [2022-11-19 08:05:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure sort_and_eliminate [2022-11-19 08:05:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-19 08:05:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-19 08:05:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:05:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_qbuf [2022-11-19 08:05:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_qbuf [2022-11-19 08:05:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 08:05:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 08:05:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:05:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure fops_read [2022-11-19 08:05:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_read [2022-11-19 08:05:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 08:05:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 08:05:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure release_all_pagetables [2022-11-19 08:05:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure release_all_pagetables [2022-11-19 08:05:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_buffer_finish [2022-11-19 08:05:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_buffer_finish [2022-11-19 08:05:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_set_output_format [2022-11-19 08:05:48,995 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_set_output_format [2022-11-19 08:05:48,995 INFO L130 BoogieDeclarations]: Found specification of procedure video_read [2022-11-19 08:05:48,995 INFO L138 BoogieDeclarations]: Found implementation of procedure video_read [2022-11-19 08:05:48,995 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-19 08:05:48,995 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-19 08:05:48,995 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_stop [2022-11-19 08:05:48,995 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_stop [2022-11-19 08:05:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_res_free [2022-11-19 08:05:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_res_free [2022-11-19 08:05:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2022-11-19 08:05:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2022-11-19 08:05:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fbuf [2022-11-19 08:05:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fbuf [2022-11-19 08:05:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_pgtable_free [2022-11-19 08:05:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_pgtable_free [2022-11-19 08:05:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:05:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 08:05:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 08:05:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-19 08:05:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-19 08:05:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-19 08:05:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-19 08:05:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-19 08:05:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-19 08:05:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-19 08:05:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-19 08:05:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_sg_init [2022-11-19 08:05:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_sg_init [2022-11-19 08:05:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_pgtable_build_single [2022-11-19 08:05:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_pgtable_build_single [2022-11-19 08:05:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:05:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_s_ctrl [2022-11-19 08:05:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_s_ctrl [2022-11-19 08:05:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 08:05:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 08:05:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:05:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 08:05:49,000 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:05:49,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:05:49,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-19 08:05:49,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-19 08:05:49,000 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_queue [2022-11-19 08:05:49,000 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_queue [2022-11-19 08:05:49,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-19 08:05:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-19 08:05:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2022-11-19 08:05:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2022-11-19 08:05:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-19 08:05:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-19 08:05:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_streamon [2022-11-19 08:05:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_streamon [2022-11-19 08:05:49,002 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 08:05:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 08:05:49,002 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2022-11-19 08:05:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2022-11-19 08:05:49,002 INFO L130 BoogieDeclarations]: Found specification of procedure video_init [2022-11-19 08:05:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure video_init [2022-11-19 08:05:49,002 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_overlay [2022-11-19 08:05:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_overlay [2022-11-19 08:05:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vbi_cap [2022-11-19 08:05:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vbi_cap [2022-11-19 08:05:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-19 08:05:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-19 08:05:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-19 08:05:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-19 08:05:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2022-11-19 08:05:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2022-11-19 08:05:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure fops_mmap [2022-11-19 08:05:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_mmap [2022-11-19 08:05:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:05:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:05:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_disable_clipping [2022-11-19 08:05:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_disable_clipping [2022-11-19 08:05:49,005 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_parm [2022-11-19 08:05:49,005 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_parm [2022-11-19 08:05:49,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:05:49,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:05:49,005 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_stop_preview [2022-11-19 08:05:49,005 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_stop_preview [2022-11-19 08:05:49,005 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-19 08:05:49,006 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-19 08:05:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_int_slock_of_saa7146_dev [2022-11-19 08:05:49,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_int_slock_of_saa7146_dev [2022-11-19 08:05:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_slock_of_saa7146_dev [2022-11-19 08:05:49,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_slock_of_saa7146_dev [2022-11-19 08:05:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-19 08:05:49,006 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-19 08:05:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure video_begin [2022-11-19 08:05:49,007 INFO L138 BoogieDeclarations]: Found implementation of procedure video_begin [2022-11-19 08:05:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 08:05:49,007 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 08:05:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure fops_open [2022-11-19 08:05:49,007 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_open [2022-11-19 08:05:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_init [2022-11-19 08:05:49,007 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_init [2022-11-19 08:05:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:05:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:05:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fbuf [2022-11-19 08:05:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fbuf [2022-11-19 08:05:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-19 08:05:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-19 08:05:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-19 08:05:49,009 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-19 08:05:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:05:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 08:05:49,009 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 08:05:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:05:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_release [2022-11-19 08:05:49,009 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_release [2022-11-19 08:05:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-19 08:05:49,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-19 08:05:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:05:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2022-11-19 08:05:49,010 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2022-11-19 08:05:49,026 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 08:05:49,026 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 08:05:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 08:05:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 08:05:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 08:05:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 08:05:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 08:05:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 08:05:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2022-11-19 08:05:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2022-11-19 08:05:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-19 08:05:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-19 08:05:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querycap [2022-11-19 08:05:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querycap [2022-11-19 08:05:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_start_preview [2022-11-19 08:05:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_start_preview [2022-11-19 08:05:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_70 [2022-11-19 08:05:49,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_70 [2022-11-19 08:05:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure fops_release [2022-11-19 08:05:49,029 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_release [2022-11-19 08:05:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_querybuf [2022-11-19 08:05:49,029 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_querybuf [2022-11-19 08:05:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure SAA7146_IER_ENABLE___0 [2022-11-19 08:05:49,029 INFO L138 BoogieDeclarations]: Found implementation of procedure SAA7146_IER_ENABLE___0 [2022-11-19 08:05:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_71 [2022-11-19 08:05:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_71 [2022-11-19 08:05:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 08:05:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 08:05:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_write_out_dma [2022-11-19 08:05:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_write_out_dma [2022-11-19 08:05:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:05:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:05:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:05:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_format_by_fourcc [2022-11-19 08:05:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_format_by_fourcc [2022-11-19 08:05:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_dma_free [2022-11-19 08:05:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_dma_free [2022-11-19 08:05:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_buffer_next [2022-11-19 08:05:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_buffer_next [2022-11-19 08:05:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure program_capture_engine [2022-11-19 08:05:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure program_capture_engine [2022-11-19 08:05:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_close [2022-11-19 08:05:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_close [2022-11-19 08:05:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-19 08:05:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-19 08:05:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_setup [2022-11-19 08:05:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_setup [2022-11-19 08:05:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 08:05:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 08:05:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-19 08:05:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-19 08:05:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure fops_write [2022-11-19 08:05:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_write [2022-11-19 08:05:49,034 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_read [2022-11-19 08:05:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_read [2022-11-19 08:05:49,034 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 08:05:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 08:05:49,034 INFO L130 BoogieDeclarations]: Found specification of procedure fops_poll [2022-11-19 08:05:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_poll [2022-11-19 08:05:49,034 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 08:05:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 08:05:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:05:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-19 08:05:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-19 08:05:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 08:05:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 08:05:50,802 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:05:50,813 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:05:51,201 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:07:02,501 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 08:07:02,705 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:07:06,008 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:07:06,009 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-19 08:07:06,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:07:06 BoogieIcfgContainer [2022-11-19 08:07:06,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:07:06,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:07:06,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:07:06,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:07:06,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:05:41" (1/3) ... [2022-11-19 08:07:06,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53896319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:07:06, skipping insertion in model container [2022-11-19 08:07:06,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (2/3) ... [2022-11-19 08:07:06,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53896319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:07:06, skipping insertion in model container [2022-11-19 08:07:06,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:07:06" (3/3) ... [2022-11-19 08:07:06,032 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i [2022-11-19 08:07:06,054 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:07:06,054 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:07:06,175 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:07:06,183 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7050a19a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:07:06,184 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:07:06,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 2517 states, 1588 states have (on average 1.3280856423173804) internal successors, (2109), 1603 states have internal predecessors, (2109), 793 states have call successors, (793), 136 states have call predecessors, (793), 135 states have return successors, (784), 777 states have call predecessors, (784), 784 states have call successors, (784) [2022-11-19 08:07:06,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2022-11-19 08:07:06,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:07:06,297 INFO L195 NwaCegarLoop]: trace histogram [46, 45, 45, 45, 45, 45, 45, 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] [2022-11-19 08:07:06,298 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:07:06,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:07:06,308 INFO L85 PathProgramCache]: Analyzing trace with hash -93182814, now seen corresponding path program 1 times [2022-11-19 08:07:06,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:07:06,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911843951] [2022-11-19 08:07:06,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:07:06,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:07:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:07:08,123 INFO L134 CoverageAnalysis]: Checked inductivity of 8014 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8014 trivial. 0 not checked. [2022-11-19 08:07:08,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:07:08,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911843951] [2022-11-19 08:07:08,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911843951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:07:08,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:07:08,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:07:08,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316159521] [2022-11-19 08:07:08,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:07:08,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:07:08,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:07:08,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:07:08,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:07:08,181 INFO L87 Difference]: Start difference. First operand has 2517 states, 1588 states have (on average 1.3280856423173804) internal successors, (2109), 1603 states have internal predecessors, (2109), 793 states have call successors, (793), 136 states have call predecessors, (793), 135 states have return successors, (784), 777 states have call predecessors, (784), 784 states have call successors, (784) Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-19 08:07:17,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:07:21,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:07:23,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:25,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:27,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:29,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:07:31,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:33,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:07:35,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:07:37,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:07:39,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:41,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:07:41,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:07:41,662 INFO L93 Difference]: Finished difference Result 7177 states and 10587 transitions. [2022-11-19 08:07:41,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:07:41,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 510 [2022-11-19 08:07:41,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:07:41,737 INFO L225 Difference]: With dead ends: 7177 [2022-11-19 08:07:41,737 INFO L226 Difference]: Without dead ends: 4695 [2022-11-19 08:07:41,764 INFO L412 NwaCegarLoop]: 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 [2022-11-19 08:07:41,772 INFO L413 NwaCegarLoop]: 3865 mSDtfsCounter, 3233 mSDsluCounter, 3102 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 13 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3244 SdHoareTripleChecker+Valid, 6967 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:07:41,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3244 Valid, 6967 Invalid, 1130 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1108 Invalid, 9 Unknown, 0 Unchecked, 33.0s Time] [2022-11-19 08:07:41,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4695 states. [2022-11-19 08:07:42,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4695 to 4687. [2022-11-19 08:07:42,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4687 states, 3004 states have (on average 1.325565912117177) internal successors, (3982), 3033 states have internal predecessors, (3982), 1419 states have call successors, (1419), 263 states have call predecessors, (1419), 263 states have return successors, (1429), 1403 states have call predecessors, (1429), 1419 states have call successors, (1429) [2022-11-19 08:07:42,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4687 states to 4687 states and 6830 transitions. [2022-11-19 08:07:42,223 INFO L78 Accepts]: Start accepts. Automaton has 4687 states and 6830 transitions. Word has length 510 [2022-11-19 08:07:42,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:07:42,229 INFO L495 AbstractCegarLoop]: Abstraction has 4687 states and 6830 transitions. [2022-11-19 08:07:42,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-19 08:07:42,230 INFO L276 IsEmpty]: Start isEmpty. Operand 4687 states and 6830 transitions. [2022-11-19 08:07:42,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2022-11-19 08:07:42,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:07:42,267 INFO L195 NwaCegarLoop]: trace histogram [46, 45, 45, 45, 45, 45, 45, 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] [2022-11-19 08:07:42,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:07:42,267 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:07:42,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:07:42,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1277380024, now seen corresponding path program 1 times [2022-11-19 08:07:42,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:07:42,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104436773] [2022-11-19 08:07:42,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:07:42,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:07:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:07:43,166 INFO L134 CoverageAnalysis]: Checked inductivity of 8014 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8014 trivial. 0 not checked. [2022-11-19 08:07:43,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:07:43,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104436773] [2022-11-19 08:07:43,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104436773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:07:43,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:07:43,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:07:43,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298277017] [2022-11-19 08:07:43,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:07:43,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:07:43,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:07:43,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:07:43,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:07:43,173 INFO L87 Difference]: Start difference. First operand 4687 states and 6830 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-19 08:07:47,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:49,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:07:54,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:07:57,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:01,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:03,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:08:06,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:08:08,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:10,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:08:12,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:14,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:16,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:18,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:08:18,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:08:18,368 INFO L93 Difference]: Finished difference Result 13334 states and 19411 transitions. [2022-11-19 08:08:18,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:08:18,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 509 [2022-11-19 08:08:18,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:08:18,451 INFO L225 Difference]: With dead ends: 13334 [2022-11-19 08:08:18,451 INFO L226 Difference]: Without dead ends: 8734 [2022-11-19 08:08:18,482 INFO L412 NwaCegarLoop]: 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 [2022-11-19 08:08:18,483 INFO L413 NwaCegarLoop]: 3965 mSDtfsCounter, 3111 mSDsluCounter, 3049 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 13 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3124 SdHoareTripleChecker+Valid, 7014 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:08:18,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3124 Valid, 7014 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1161 Invalid, 12 Unknown, 0 Unchecked, 34.8s Time] [2022-11-19 08:08:18,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8734 states. [2022-11-19 08:08:19,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8734 to 8715. [2022-11-19 08:08:19,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8715 states, 5613 states have (on average 1.3272759665063245) internal successors, (7450), 5673 states have internal predecessors, (7450), 2591 states have call successors, (2591), 510 states have call predecessors, (2591), 510 states have return successors, (2626), 2555 states have call predecessors, (2626), 2591 states have call successors, (2626) [2022-11-19 08:08:19,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8715 states to 8715 states and 12667 transitions. [2022-11-19 08:08:19,077 INFO L78 Accepts]: Start accepts. Automaton has 8715 states and 12667 transitions. Word has length 509 [2022-11-19 08:08:19,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:08:19,078 INFO L495 AbstractCegarLoop]: Abstraction has 8715 states and 12667 transitions. [2022-11-19 08:08:19,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-19 08:08:19,079 INFO L276 IsEmpty]: Start isEmpty. Operand 8715 states and 12667 transitions. [2022-11-19 08:08:19,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2022-11-19 08:08:19,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:08:19,113 INFO L195 NwaCegarLoop]: trace histogram [49, 48, 48, 48, 48, 48, 48, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:08:19,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:08:19,113 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:08:19,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:08:19,114 INFO L85 PathProgramCache]: Analyzing trace with hash -26810925, now seen corresponding path program 1 times [2022-11-19 08:08:19,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:08:19,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133869293] [2022-11-19 08:08:19,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:19,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:08:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:20,048 INFO L134 CoverageAnalysis]: Checked inductivity of 9160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9160 trivial. 0 not checked. [2022-11-19 08:08:20,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:08:20,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133869293] [2022-11-19 08:08:20,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133869293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:08:20,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:08:20,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:08:20,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150448473] [2022-11-19 08:08:20,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:08:20,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:08:20,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:08:20,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:08:20,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:08:20,055 INFO L87 Difference]: Start difference. First operand 8715 states and 12667 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-19 08:08:22,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:08:25,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:08:27,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:29,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:08:33,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:34,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:38,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:40,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:43,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:45,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:08:47,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:08:49,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:51,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:08:53,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:55,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:57,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:59,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:09:00,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:00,018 INFO L93 Difference]: Finished difference Result 25514 states and 37080 transitions. [2022-11-19 08:09:00,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:09:00,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 535 [2022-11-19 08:09:00,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:00,137 INFO L225 Difference]: With dead ends: 25514 [2022-11-19 08:09:00,137 INFO L226 Difference]: Without dead ends: 16886 [2022-11-19 08:09:00,188 INFO L412 NwaCegarLoop]: 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 [2022-11-19 08:09:00,192 INFO L413 NwaCegarLoop]: 3863 mSDtfsCounter, 3207 mSDsluCounter, 3066 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 13 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3220 SdHoareTripleChecker+Valid, 6929 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:00,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3220 Valid, 6929 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1097 Invalid, 13 Unknown, 0 Unchecked, 39.4s Time] [2022-11-19 08:09:00,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16886 states. [2022-11-19 08:09:01,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16886 to 16865. [2022-11-19 08:09:01,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16865 states, 10892 states have (on average 1.3275798751377157) internal successors, (14460), 11022 states have internal predecessors, (14460), 4970 states have call successors, (4970), 1002 states have call predecessors, (4970), 1002 states have return successors, (5053), 4888 states have call predecessors, (5053), 4970 states have call successors, (5053) [2022-11-19 08:09:01,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16865 states to 16865 states and 24483 transitions. [2022-11-19 08:09:01,499 INFO L78 Accepts]: Start accepts. Automaton has 16865 states and 24483 transitions. Word has length 535 [2022-11-19 08:09:01,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:01,502 INFO L495 AbstractCegarLoop]: Abstraction has 16865 states and 24483 transitions. [2022-11-19 08:09:01,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-19 08:09:01,503 INFO L276 IsEmpty]: Start isEmpty. Operand 16865 states and 24483 transitions. [2022-11-19 08:09:01,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2022-11-19 08:09:01,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:01,553 INFO L195 NwaCegarLoop]: trace histogram [47, 45, 45, 45, 45, 45, 45, 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] [2022-11-19 08:09:01,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:09:01,554 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:09:01,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:01,555 INFO L85 PathProgramCache]: Analyzing trace with hash -155637405, now seen corresponding path program 1 times [2022-11-19 08:09:01,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:01,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980510616] [2022-11-19 08:09:01,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:01,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:02,634 INFO L134 CoverageAnalysis]: Checked inductivity of 8109 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8106 trivial. 0 not checked. [2022-11-19 08:09:02,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:02,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980510616] [2022-11-19 08:09:02,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980510616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:02,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:02,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:09:02,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868788040] [2022-11-19 08:09:02,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:02,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:09:02,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:02,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:09:02,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:02,640 INFO L87 Difference]: Start difference. First operand 16865 states and 24483 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-19 08:09:04,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:09:09,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:09:11,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:09:13,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:09:16,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:09:19,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:09:20,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:09:23,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:09:25,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:09:28,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:09:30,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:09:32,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:09:34,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:09:36,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:09:38,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:09:38,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:38,294 INFO L93 Difference]: Finished difference Result 35657 states and 51678 transitions. [2022-11-19 08:09:38,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:09:38,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 533 [2022-11-19 08:09:38,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:38,396 INFO L225 Difference]: With dead ends: 35657 [2022-11-19 08:09:38,396 INFO L226 Difference]: Without dead ends: 18879 [2022-11-19 08:09:38,466 INFO L412 NwaCegarLoop]: 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 [2022-11-19 08:09:38,467 INFO L413 NwaCegarLoop]: 3667 mSDtfsCounter, 2460 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 12 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2467 SdHoareTripleChecker+Valid, 6726 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:38,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2467 Valid, 6726 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1113 Invalid, 11 Unknown, 0 Unchecked, 35.0s Time] [2022-11-19 08:09:38,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18879 states. [2022-11-19 08:09:39,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18879 to 18868. [2022-11-19 08:09:39,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18868 states, 12216 states have (on average 1.3262933857236412) internal successors, (16202), 12361 states have internal predecessors, (16202), 5504 states have call successors, (5504), 1147 states have call predecessors, (5504), 1147 states have return successors, (5595), 5412 states have call predecessors, (5595), 5504 states have call successors, (5595) [2022-11-19 08:09:39,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18868 states to 18868 states and 27301 transitions. [2022-11-19 08:09:39,878 INFO L78 Accepts]: Start accepts. Automaton has 18868 states and 27301 transitions. Word has length 533 [2022-11-19 08:09:39,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:39,879 INFO L495 AbstractCegarLoop]: Abstraction has 18868 states and 27301 transitions. [2022-11-19 08:09:39,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-19 08:09:39,880 INFO L276 IsEmpty]: Start isEmpty. Operand 18868 states and 27301 transitions. [2022-11-19 08:09:39,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2022-11-19 08:09:39,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:39,910 INFO L195 NwaCegarLoop]: trace histogram [49, 48, 48, 48, 48, 48, 48, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:39,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:09:39,911 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:09:39,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:39,911 INFO L85 PathProgramCache]: Analyzing trace with hash 2081658161, now seen corresponding path program 1 times [2022-11-19 08:09:39,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:39,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594698531] [2022-11-19 08:09:39,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:39,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:40,703 INFO L134 CoverageAnalysis]: Checked inductivity of 9160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9160 trivial. 0 not checked. [2022-11-19 08:09:40,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:40,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594698531] [2022-11-19 08:09:40,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594698531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:40,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:40,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:09:40,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881738703] [2022-11-19 08:09:40,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:40,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:09:40,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:40,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:09:40,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:40,707 INFO L87 Difference]: Start difference. First operand 18868 states and 27301 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-19 08:09:44,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:09:47,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:09:48,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:09:52,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:09:53,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:09:56,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:09:58,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:10:01,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:10:04,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:10:07,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:10:09,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:10:11,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:10:13,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:10:15,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:10:17,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:10:19,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:10:21,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:10:23,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:10:23,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:23,611 INFO L93 Difference]: Finished difference Result 52835 states and 76111 transitions. [2022-11-19 08:10:23,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:10:23,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 561 [2022-11-19 08:10:23,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:23,788 INFO L225 Difference]: With dead ends: 52835 [2022-11-19 08:10:23,789 INFO L226 Difference]: Without dead ends: 34054 [2022-11-19 08:10:23,856 INFO L412 NwaCegarLoop]: 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 [2022-11-19 08:10:23,857 INFO L413 NwaCegarLoop]: 3819 mSDtfsCounter, 2905 mSDsluCounter, 3027 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 7 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2914 SdHoareTripleChecker+Valid, 6846 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:23,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2914 Valid, 6846 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1131 Invalid, 13 Unknown, 0 Unchecked, 41.9s Time] [2022-11-19 08:10:23,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34054 states. [2022-11-19 08:10:25,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34054 to 34030. [2022-11-19 08:10:26,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34030 states, 21965 states have (on average 1.3181424994309128) internal successors, (28953), 22257 states have internal predecessors, (28953), 9870 states have call successors, (9870), 2194 states have call predecessors, (9870), 2194 states have return successors, (10049), 9680 states have call predecessors, (10049), 9870 states have call successors, (10049) [2022-11-19 08:10:26,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34030 states to 34030 states and 48872 transitions. [2022-11-19 08:10:26,234 INFO L78 Accepts]: Start accepts. Automaton has 34030 states and 48872 transitions. Word has length 561 [2022-11-19 08:10:26,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:26,236 INFO L495 AbstractCegarLoop]: Abstraction has 34030 states and 48872 transitions. [2022-11-19 08:10:26,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-19 08:10:26,236 INFO L276 IsEmpty]: Start isEmpty. Operand 34030 states and 48872 transitions. [2022-11-19 08:10:26,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2022-11-19 08:10:26,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:26,299 INFO L195 NwaCegarLoop]: trace histogram [49, 45, 45, 45, 45, 45, 45, 3, 3, 3, 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] [2022-11-19 08:10:26,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:10:26,299 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:10:26,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:26,300 INFO L85 PathProgramCache]: Analyzing trace with hash 174840298, now seen corresponding path program 1 times [2022-11-19 08:10:26,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:10:26,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81691174] [2022-11-19 08:10:26,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:10:26,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:10:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:27,045 INFO L134 CoverageAnalysis]: Checked inductivity of 8321 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8314 trivial. 0 not checked. [2022-11-19 08:10:27,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:10:27,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81691174] [2022-11-19 08:10:27,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81691174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:10:27,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:10:27,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:10:27,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929541885] [2022-11-19 08:10:27,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:10:27,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:10:27,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:10:27,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:10:27,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:10:27,054 INFO L87 Difference]: Start difference. First operand 34030 states and 48872 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-19 08:10:30,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:10:33,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:10:35,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:10:37,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:10:38,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:10:41,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:10:43,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:10:45,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:10:49,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:10:53,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:10:56,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:10:59,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:01,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:03,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:05,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:07,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:11:09,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:11,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:11:13,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:11:15,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:11:17,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:18,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:18,121 INFO L93 Difference]: Finished difference Result 79361 states and 114065 transitions. [2022-11-19 08:11:18,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:11:18,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 567 [2022-11-19 08:11:18,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:18,404 INFO L225 Difference]: With dead ends: 79361 [2022-11-19 08:11:18,405 INFO L226 Difference]: Without dead ends: 48340 [2022-11-19 08:11:18,729 INFO L412 NwaCegarLoop]: 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 [2022-11-19 08:11:18,730 INFO L413 NwaCegarLoop]: 5302 mSDtfsCounter, 3152 mSDsluCounter, 3033 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 9 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3169 SdHoareTripleChecker+Valid, 8335 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:18,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3169 Valid, 8335 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1465 Invalid, 15 Unknown, 0 Unchecked, 49.2s Time] [2022-11-19 08:11:18,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48340 states. [2022-11-19 08:11:21,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48340 to 48295. [2022-11-19 08:11:21,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48295 states, 31192 states have (on average 1.318639394716594) internal successors, (41131), 31617 states have internal predecessors, (41131), 13966 states have call successors, (13966), 3136 states have call predecessors, (13966), 3136 states have return successors, (14242), 13685 states have call predecessors, (14242), 13966 states have call successors, (14242) [2022-11-19 08:11:21,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48295 states to 48295 states and 69339 transitions. [2022-11-19 08:11:21,774 INFO L78 Accepts]: Start accepts. Automaton has 48295 states and 69339 transitions. Word has length 567 [2022-11-19 08:11:21,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:21,775 INFO L495 AbstractCegarLoop]: Abstraction has 48295 states and 69339 transitions. [2022-11-19 08:11:21,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-19 08:11:21,775 INFO L276 IsEmpty]: Start isEmpty. Operand 48295 states and 69339 transitions. [2022-11-19 08:11:21,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2022-11-19 08:11:21,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:21,815 INFO L195 NwaCegarLoop]: trace histogram [49, 45, 45, 45, 45, 45, 45, 3, 3, 3, 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] [2022-11-19 08:11:21,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:11:21,816 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:21,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:21,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1762015376, now seen corresponding path program 1 times [2022-11-19 08:11:21,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:21,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785346662] [2022-11-19 08:11:21,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:21,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:22,781 INFO L134 CoverageAnalysis]: Checked inductivity of 8321 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8314 trivial. 0 not checked. [2022-11-19 08:11:22,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:22,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785346662] [2022-11-19 08:11:22,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785346662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:22,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:22,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:11:22,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992715570] [2022-11-19 08:11:22,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:22,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:11:22,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:22,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:11:22,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:11:22,785 INFO L87 Difference]: Start difference. First operand 48295 states and 69339 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-19 08:11:27,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:29,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:31,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:33,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:36,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:11:39,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:41,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:43,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:11:46,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:49,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:11:52,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:55,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:58,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:01,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:12:03,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:05,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:12:07,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:12:09,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:12:11,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:12,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:12,041 INFO L93 Difference]: Finished difference Result 113976 states and 163660 transitions. [2022-11-19 08:12:12,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:12:12,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 566 [2022-11-19 08:12:12,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:12,492 INFO L225 Difference]: With dead ends: 113976 [2022-11-19 08:12:12,492 INFO L226 Difference]: Without dead ends: 68690 [2022-11-19 08:12:12,651 INFO L412 NwaCegarLoop]: 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 [2022-11-19 08:12:12,657 INFO L413 NwaCegarLoop]: 5700 mSDtfsCounter, 3092 mSDsluCounter, 3032 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 9 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3108 SdHoareTripleChecker+Valid, 8732 SdHoareTripleChecker+Invalid, 1573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:12,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3108 Valid, 8732 Invalid, 1573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1549 Invalid, 15 Unknown, 0 Unchecked, 47.0s Time] [2022-11-19 08:12:12,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68690 states. [2022-11-19 08:12:15,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68690 to 68651. [2022-11-19 08:12:16,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68651 states, 44366 states have (on average 1.3182391921741874) internal successors, (58485), 44985 states have internal predecessors, (58485), 19772 states have call successors, (19772), 4512 states have call predecessors, (19772), 4512 states have return successors, (20180), 19357 states have call predecessors, (20180), 19772 states have call successors, (20180) [2022-11-19 08:12:16,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68651 states to 68651 states and 98437 transitions. [2022-11-19 08:12:16,399 INFO L78 Accepts]: Start accepts. Automaton has 68651 states and 98437 transitions. Word has length 566 [2022-11-19 08:12:16,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:16,400 INFO L495 AbstractCegarLoop]: Abstraction has 68651 states and 98437 transitions. [2022-11-19 08:12:16,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-19 08:12:16,400 INFO L276 IsEmpty]: Start isEmpty. Operand 68651 states and 98437 transitions. [2022-11-19 08:12:16,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2022-11-19 08:12:16,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:16,779 INFO L195 NwaCegarLoop]: trace histogram [52, 48, 48, 48, 48, 48, 48, 5, 5, 5, 5, 3, 3, 3, 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] [2022-11-19 08:12:16,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:12:16,780 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:12:16,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:16,780 INFO L85 PathProgramCache]: Analyzing trace with hash 909612093, now seen corresponding path program 1 times [2022-11-19 08:12:16,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:12:16,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276536863] [2022-11-19 08:12:16,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:16,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:12:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:17,844 INFO L134 CoverageAnalysis]: Checked inductivity of 9484 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9477 trivial. 0 not checked. [2022-11-19 08:12:17,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:12:17,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276536863] [2022-11-19 08:12:17,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276536863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:12:17,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:12:17,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:12:17,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846889156] [2022-11-19 08:12:17,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:12:17,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:12:17,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:12:17,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:12:17,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:12:17,849 INFO L87 Difference]: Start difference. First operand 68651 states and 98437 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-19 08:12:22,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:25,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:29,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:12:34,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:12:36,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:12:41,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:43,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:45,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:49,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:12:51,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:53,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:12:55,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:12:57,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:12:59,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:00,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:00,205 INFO L93 Difference]: Finished difference Result 165273 states and 237141 transitions. [2022-11-19 08:13:00,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:13:00,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) Word has length 591 [2022-11-19 08:13:00,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:00,859 INFO L225 Difference]: With dead ends: 165273 [2022-11-19 08:13:00,859 INFO L226 Difference]: Without dead ends: 99631 [2022-11-19 08:13:01,029 INFO L412 NwaCegarLoop]: 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 [2022-11-19 08:13:01,030 INFO L413 NwaCegarLoop]: 5836 mSDtfsCounter, 3247 mSDsluCounter, 3055 mSDsCounter, 0 mSdLazyCounter, 1565 mSolverCounterSat, 9 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3260 SdHoareTripleChecker+Valid, 8891 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1565 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:01,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3260 Valid, 8891 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1565 Invalid, 10 Unknown, 0 Unchecked, 39.0s Time] [2022-11-19 08:13:01,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99631 states. [2022-11-19 08:13:05,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99631 to 99568. [2022-11-19 08:13:05,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99568 states, 64369 states have (on average 1.3184141434541472) internal successors, (84865), 65292 states have internal predecessors, (84865), 28627 states have call successors, (28627), 6571 states have call predecessors, (28627), 6571 states have return successors, (29250), 28002 states have call predecessors, (29250), 28627 states have call successors, (29250) [2022-11-19 08:13:06,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99568 states to 99568 states and 142742 transitions. [2022-11-19 08:13:06,475 INFO L78 Accepts]: Start accepts. Automaton has 99568 states and 142742 transitions. Word has length 591 [2022-11-19 08:13:06,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:06,476 INFO L495 AbstractCegarLoop]: Abstraction has 99568 states and 142742 transitions. [2022-11-19 08:13:06,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-19 08:13:06,477 INFO L276 IsEmpty]: Start isEmpty. Operand 99568 states and 142742 transitions. [2022-11-19 08:13:06,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2022-11-19 08:13:06,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:06,534 INFO L195 NwaCegarLoop]: trace histogram [52, 48, 48, 48, 48, 48, 48, 5, 5, 5, 5, 3, 3, 3, 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] [2022-11-19 08:13:06,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:13:06,534 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:13:06,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:06,535 INFO L85 PathProgramCache]: Analyzing trace with hash 779312568, now seen corresponding path program 1 times [2022-11-19 08:13:06,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:13:06,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377845455] [2022-11-19 08:13:06,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:06,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:13:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:07,723 INFO L134 CoverageAnalysis]: Checked inductivity of 9482 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9475 trivial. 0 not checked. [2022-11-19 08:13:07,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:13:07,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377845455] [2022-11-19 08:13:07,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377845455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:07,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:13:07,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:13:07,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041077143] [2022-11-19 08:13:07,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:07,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:13:07,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:13:07,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:13:07,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:13:07,727 INFO L87 Difference]: Start difference. First operand 99568 states and 142742 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-19 08:13:13,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:16,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:18,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:20,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:22,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:24,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:28,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:30,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:32,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:35,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:38,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:40,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:42,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:45,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:47,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:50,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:52,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:54,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:56,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:58,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:00,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:14:01,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:01,544 INFO L93 Difference]: Finished difference Result 239069 states and 342311 transitions. [2022-11-19 08:14:01,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:14:01,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) Word has length 615 [2022-11-19 08:14:01,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:02,150 INFO L225 Difference]: With dead ends: 239069 [2022-11-19 08:14:02,151 INFO L226 Difference]: Without dead ends: 142510 [2022-11-19 08:14:02,601 INFO L412 NwaCegarLoop]: 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 [2022-11-19 08:14:02,604 INFO L413 NwaCegarLoop]: 5608 mSDtfsCounter, 2932 mSDsluCounter, 3025 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 4 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2943 SdHoareTripleChecker+Valid, 8633 SdHoareTripleChecker+Invalid, 1548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:02,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2943 Valid, 8633 Invalid, 1548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1531 Invalid, 13 Unknown, 0 Unchecked, 49.2s Time] [2022-11-19 08:14:02,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142510 states. [2022-11-19 08:14:08,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142510 to 142440. [2022-11-19 08:14:08,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142440 states, 91957 states have (on average 1.315582283023587) internal successors, (120977), 93330 states have internal predecessors, (120977), 40889 states have call successors, (40889), 9593 states have call predecessors, (40889), 9593 states have return successors, (41788), 39951 states have call predecessors, (41788), 40889 states have call successors, (41788) [2022-11-19 08:14:09,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142440 states to 142440 states and 203654 transitions. [2022-11-19 08:14:09,640 INFO L78 Accepts]: Start accepts. Automaton has 142440 states and 203654 transitions. Word has length 615 [2022-11-19 08:14:09,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:09,641 INFO L495 AbstractCegarLoop]: Abstraction has 142440 states and 203654 transitions. [2022-11-19 08:14:09,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-19 08:14:09,641 INFO L276 IsEmpty]: Start isEmpty. Operand 142440 states and 203654 transitions. [2022-11-19 08:14:09,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2022-11-19 08:14:09,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:09,758 INFO L195 NwaCegarLoop]: trace histogram [54, 48, 48, 48, 48, 48, 48, 5, 5, 5, 5, 4, 4, 4, 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] [2022-11-19 08:14:09,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 08:14:09,759 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:14:09,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:09,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1945274936, now seen corresponding path program 1 times [2022-11-19 08:14:09,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:14:09,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180479499] [2022-11-19 08:14:09,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:09,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:14:10,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:11,237 INFO L134 CoverageAnalysis]: Checked inductivity of 9708 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 9692 trivial. 0 not checked. [2022-11-19 08:14:11,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:14:11,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180479499] [2022-11-19 08:14:11,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180479499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:14:11,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:14:11,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:14:11,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074475698] [2022-11-19 08:14:11,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:14:11,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:14:11,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:14:11,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:14:11,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:14:11,241 INFO L87 Difference]: Start difference. First operand 142440 states and 203654 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-19 08:14:14,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:14:16,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:18,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:21,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:14:29,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:33,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:14:41,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:43,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:46,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:51,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:14:54,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:56,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:14:58,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:15:00,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:15:02,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:15:04,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:15:06,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:06,558 INFO L93 Difference]: Finished difference Result 329358 states and 470349 transitions. [2022-11-19 08:15:06,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:15:06,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 632 [2022-11-19 08:15:06,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:07,686 INFO L225 Difference]: With dead ends: 329358 [2022-11-19 08:15:07,686 INFO L226 Difference]: Without dead ends: 187005 [2022-11-19 08:15:08,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:15:08,048 INFO L413 NwaCegarLoop]: 5482 mSDtfsCounter, 3032 mSDsluCounter, 4275 mSDsCounter, 0 mSdLazyCounter, 3125 mSolverCounterSat, 18 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3044 SdHoareTripleChecker+Valid, 9757 SdHoareTripleChecker+Invalid, 3154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3125 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:08,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3044 Valid, 9757 Invalid, 3154 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 3125 Invalid, 11 Unknown, 0 Unchecked, 48.7s Time] [2022-11-19 08:15:08,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187005 states. [2022-11-19 08:15:16,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187005 to 186915. [2022-11-19 08:15:16,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186915 states, 120583 states have (on average 1.3136262988978546) internal successors, (158401), 122415 states have internal predecessors, (158401), 53519 states have call successors, (53519), 12812 states have call predecessors, (53519), 12812 states have return successors, (54676), 52262 states have call predecessors, (54676), 53519 states have call successors, (54676)