./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 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P/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_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P --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 --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 22:48:14,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 22:48:14,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 22:48:14,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 22:48:14,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 22:48:14,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 22:48:14,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 22:48:14,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 22:48:14,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 22:48:14,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 22:48:14,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 22:48:14,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 22:48:14,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 22:48:14,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 22:48:14,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 22:48:14,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 22:48:14,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 22:48:14,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 22:48:14,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 22:48:14,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 22:48:14,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 22:48:14,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 22:48:14,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 22:48:14,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 22:48:14,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 22:48:14,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 22:48:14,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 22:48:14,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 22:48:14,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 22:48:14,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 22:48:14,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 22:48:14,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 22:48:14,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 22:48:14,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 22:48:14,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 22:48:14,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 22:48:14,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 22:48:14,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 22:48:14,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 22:48:14,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 22:48:14,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 22:48:14,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 22:48:14,289 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 22:48:14,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 22:48:14,289 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 22:48:14,290 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 22:48:14,290 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 22:48:14,291 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 22:48:14,291 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 22:48:14,294 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 22:48:14,294 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 22:48:14,295 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 22:48:14,296 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 22:48:14,296 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 22:48:14,296 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 22:48:14,296 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 22:48:14,297 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 22:48:14,297 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 22:48:14,297 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 22:48:14,297 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 22:48:14,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 22:48:14,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 22:48:14,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 22:48:14,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 22:48:14,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 22:48:14,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 22:48:14,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 22:48:14,300 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 22:48:14,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 22:48:14,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 22:48:14,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 22:48:14,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:48:14,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 22:48:14,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 22:48:14,304 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 22:48:14,304 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 22:48:14,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 22:48:14,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 22:48:14,305 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 22:48:14,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 22:48:14,305 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5402abc3421e66b1eb1ff4aae98a8f753c1d0c37db1cbdc24eb3404edec561ce [2021-11-20 22:48:14,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 22:48:14,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 22:48:14,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 22:48:14,667 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 22:48:14,668 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 22:48:14,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i [2021-11-20 22:48:14,738 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P/data/a6ab89d98/3fa023ae1f2343bb89feca30826b8947/FLAGea37ce0ef [2021-11-20 22:48:15,911 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 22:48:15,912 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i [2021-11-20 22:48:15,993 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P/data/a6ab89d98/3fa023ae1f2343bb89feca30826b8947/FLAGea37ce0ef [2021-11-20 22:48:16,173 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P/data/a6ab89d98/3fa023ae1f2343bb89feca30826b8947 [2021-11-20 22:48:16,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 22:48:16,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 22:48:16,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 22:48:16,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 22:48:16,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 22:48:16,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:48:16" (1/1) ... [2021-11-20 22:48:16,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68963624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:16, skipping insertion in model container [2021-11-20 22:48:16,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:48:16" (1/1) ... [2021-11-20 22:48:16,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 22:48:16,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 22:48:20,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/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] [2021-11-20 22:48:20,764 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/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] [2021-11-20 22:48:20,804 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:48:20,895 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 22:48:21,725 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/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] [2021-11-20 22:48:21,725 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/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] [2021-11-20 22:48:21,732 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:48:21,976 INFO L208 MainTranslator]: Completed translation [2021-11-20 22:48:21,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:21 WrapperNode [2021-11-20 22:48:21,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 22:48:21,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 22:48:21,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 22:48:21,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 22:48:21,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:21" (1/1) ... [2021-11-20 22:48:22,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:21" (1/1) ... [2021-11-20 22:48:22,760 INFO L137 Inliner]: procedures = 486, calls = 6649, calls flagged for inlining = 236, calls inlined = 219, statements flattened = 12161 [2021-11-20 22:48:22,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 22:48:22,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 22:48:22,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 22:48:22,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 22:48:22,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:21" (1/1) ... [2021-11-20 22:48:22,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:21" (1/1) ... [2021-11-20 22:48:22,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:21" (1/1) ... [2021-11-20 22:48:22,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:21" (1/1) ... [2021-11-20 22:48:23,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:21" (1/1) ... [2021-11-20 22:48:23,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:21" (1/1) ... [2021-11-20 22:48:23,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:21" (1/1) ... [2021-11-20 22:48:23,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 22:48:23,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 22:48:23,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 22:48:23,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 22:48:23,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:21" (1/1) ... [2021-11-20 22:48:23,564 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:48:23,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:48:23,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 22:48:23,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 22:48:23,639 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_streamoff [2021-11-20 22:48:23,639 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_streamoff [2021-11-20 22:48:23,639 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2021-11-20 22:48:23,639 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2021-11-20 22:48:23,639 INFO L130 BoogieDeclarations]: Found specification of procedure SAA7146_IER_DISABLE___0 [2021-11-20 22:48:23,640 INFO L138 BoogieDeclarations]: Found implementation of procedure SAA7146_IER_DISABLE___0 [2021-11-20 22:48:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_reqbufs [2021-11-20 22:48:23,640 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_reqbufs [2021-11-20 22:48:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 22:48:23,640 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 22:48:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fmt_vid_cap [2021-11-20 22:48:23,641 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fmt_vid_cap [2021-11-20 22:48:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 22:48:23,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 22:48:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_fmt_vid_cap [2021-11-20 22:48:23,641 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_fmt_vid_cap [2021-11-20 22:48:23,642 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2021-11-20 22:48:23,642 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2021-11-20 22:48:23,642 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_set_window [2021-11-20 22:48:23,642 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_set_window [2021-11-20 22:48:23,642 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-20 22:48:23,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-20 22:48:23,643 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_res_get [2021-11-20 22:48:23,643 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_res_get [2021-11-20 22:48:23,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2021-11-20 22:48:23,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2021-11-20 22:48:23,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_64 [2021-11-20 22:48:23,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_64 [2021-11-20 22:48:23,644 INFO L130 BoogieDeclarations]: Found specification of procedure video_end [2021-11-20 22:48:23,644 INFO L138 BoogieDeclarations]: Found implementation of procedure video_end [2021-11-20 22:48:23,644 INFO L130 BoogieDeclarations]: Found specification of procedure arch_spin_is_locked [2021-11-20 22:48:23,645 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_spin_is_locked [2021-11-20 22:48:23,645 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_dma [2021-11-20 22:48:23,645 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_dma [2021-11-20 22:48:23,645 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_cap [2021-11-20 22:48:23,645 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_cap [2021-11-20 22:48:23,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_saa7146_vv_cleanup_module_9_2 [2021-11-20 22:48:23,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_saa7146_vv_cleanup_module_9_2 [2021-11-20 22:48:23,646 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_buffer_queue [2021-11-20 22:48:23,646 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_buffer_queue [2021-11-20 22:48:23,647 INFO L130 BoogieDeclarations]: Found specification of procedure video_close [2021-11-20 22:48:23,647 INFO L138 BoogieDeclarations]: Found implementation of procedure video_close [2021-11-20 22:48:23,647 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_open [2021-11-20 22:48:23,647 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_open [2021-11-20 22:48:23,648 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_std [2021-11-20 22:48:23,648 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_std [2021-11-20 22:48:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_pgtable_alloc [2021-11-20 22:48:23,649 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_pgtable_alloc [2021-11-20 22:48:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 22:48:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 22:48:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2021-11-20 22:48:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2021-11-20 22:48:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-20 22:48:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-20 22:48:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_irq_done [2021-11-20 22:48:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_irq_done [2021-11-20 22:48:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2021-11-20 22:48:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2021-11-20 22:48:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2021-11-20 22:48:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2021-11-20 22:48:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 22:48:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 22:48:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querybuf [2021-11-20 22:48:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querybuf [2021-11-20 22:48:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 22:48:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 22:48:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2021-11-20 22:48:23,655 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2021-11-20 22:48:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 22:48:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_overlay [2021-11-20 22:48:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_overlay [2021-11-20 22:48:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_dqbuf [2021-11-20 22:48:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_dqbuf [2021-11-20 22:48:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure video_irq_done [2021-11-20 22:48:23,657 INFO L138 BoogieDeclarations]: Found implementation of procedure video_irq_done [2021-11-20 22:48:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-20 22:48:23,657 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-20 22:48:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_slock_of_saa7146_dev [2021-11-20 22:48:23,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_slock_of_saa7146_dev [2021-11-20 22:48:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fmt_vid_overlay [2021-11-20 22:48:23,658 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fmt_vid_overlay [2021-11-20 22:48:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_cap [2021-11-20 22:48:23,659 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_cap [2021-11-20 22:48:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-20 22:48:23,660 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-20 22:48:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 22:48:23,660 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 22:48:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure sort_and_eliminate [2021-11-20 22:48:23,660 INFO L138 BoogieDeclarations]: Found implementation of procedure sort_and_eliminate [2021-11-20 22:48:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2021-11-20 22:48:23,661 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2021-11-20 22:48:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 22:48:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_qbuf [2021-11-20 22:48:23,662 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_qbuf [2021-11-20 22:48:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 22:48:23,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 22:48:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 22:48:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure fops_read [2021-11-20 22:48:23,662 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_read [2021-11-20 22:48:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 22:48:23,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 22:48:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure release_all_pagetables [2021-11-20 22:48:23,663 INFO L138 BoogieDeclarations]: Found implementation of procedure release_all_pagetables [2021-11-20 22:48:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_buffer_finish [2021-11-20 22:48:23,664 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_buffer_finish [2021-11-20 22:48:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_set_output_format [2021-11-20 22:48:23,664 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_set_output_format [2021-11-20 22:48:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure video_read [2021-11-20 22:48:23,665 INFO L138 BoogieDeclarations]: Found implementation of procedure video_read [2021-11-20 22:48:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-20 22:48:23,668 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-20 22:48:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_stop [2021-11-20 22:48:23,669 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_stop [2021-11-20 22:48:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_res_free [2021-11-20 22:48:23,670 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_res_free [2021-11-20 22:48:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2021-11-20 22:48:23,671 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2021-11-20 22:48:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fbuf [2021-11-20 22:48:23,673 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fbuf [2021-11-20 22:48:23,679 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_pgtable_free [2021-11-20 22:48:23,680 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_pgtable_free [2021-11-20 22:48:23,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 22:48:23,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-20 22:48:23,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-20 22:48:23,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-20 22:48:23,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-20 22:48:23,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-20 22:48:23,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-20 22:48:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-20 22:48:23,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-20 22:48:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-20 22:48:23,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-20 22:48:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_sg_init [2021-11-20 22:48:23,681 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_sg_init [2021-11-20 22:48:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_pgtable_build_single [2021-11-20 22:48:23,681 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_pgtable_build_single [2021-11-20 22:48:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 22:48:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_s_ctrl [2021-11-20 22:48:23,682 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_s_ctrl [2021-11-20 22:48:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 22:48:23,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 22:48:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 22:48:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 22:48:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 22:48:23,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 22:48:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-20 22:48:23,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-20 22:48:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_queue [2021-11-20 22:48:23,683 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_queue [2021-11-20 22:48:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-20 22:48:23,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-20 22:48:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2021-11-20 22:48:23,683 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2021-11-20 22:48:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-20 22:48:23,684 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-20 22:48:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_streamon [2021-11-20 22:48:23,684 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_streamon [2021-11-20 22:48:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-20 22:48:23,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-20 22:48:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2021-11-20 22:48:23,684 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2021-11-20 22:48:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure video_init [2021-11-20 22:48:23,685 INFO L138 BoogieDeclarations]: Found implementation of procedure video_init [2021-11-20 22:48:23,685 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_overlay [2021-11-20 22:48:23,685 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_overlay [2021-11-20 22:48:23,685 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vbi_cap [2021-11-20 22:48:23,685 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vbi_cap [2021-11-20 22:48:23,685 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-20 22:48:23,685 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-20 22:48:23,685 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-20 22:48:23,685 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-20 22:48:23,686 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2021-11-20 22:48:23,686 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2021-11-20 22:48:23,686 INFO L130 BoogieDeclarations]: Found specification of procedure fops_mmap [2021-11-20 22:48:23,686 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_mmap [2021-11-20 22:48:23,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 22:48:23,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 22:48:23,686 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_disable_clipping [2021-11-20 22:48:23,686 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_disable_clipping [2021-11-20 22:48:23,686 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_parm [2021-11-20 22:48:23,687 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_parm [2021-11-20 22:48:23,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 22:48:23,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 22:48:23,687 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_stop_preview [2021-11-20 22:48:23,687 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_stop_preview [2021-11-20 22:48:23,687 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-20 22:48:23,687 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-20 22:48:23,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_int_slock_of_saa7146_dev [2021-11-20 22:48:23,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_int_slock_of_saa7146_dev [2021-11-20 22:48:23,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_slock_of_saa7146_dev [2021-11-20 22:48:23,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_slock_of_saa7146_dev [2021-11-20 22:48:23,688 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-11-20 22:48:23,688 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-11-20 22:48:23,688 INFO L130 BoogieDeclarations]: Found specification of procedure video_begin [2021-11-20 22:48:23,688 INFO L138 BoogieDeclarations]: Found implementation of procedure video_begin [2021-11-20 22:48:23,688 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-20 22:48:23,689 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-20 22:48:23,689 INFO L130 BoogieDeclarations]: Found specification of procedure fops_open [2021-11-20 22:48:23,689 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_open [2021-11-20 22:48:23,689 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_init [2021-11-20 22:48:23,689 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_init [2021-11-20 22:48:23,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 22:48:23,689 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 22:48:23,689 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fbuf [2021-11-20 22:48:23,689 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fbuf [2021-11-20 22:48:23,690 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-20 22:48:23,690 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-20 22:48:23,690 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-20 22:48:23,690 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-20 22:48:23,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 22:48:23,690 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 22:48:23,690 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 22:48:23,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 22:48:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_release [2021-11-20 22:48:23,691 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_release [2021-11-20 22:48:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-20 22:48:23,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-20 22:48:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 22:48:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2021-11-20 22:48:23,691 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2021-11-20 22:48:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 22:48:23,691 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 22:48:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-20 22:48:23,692 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-20 22:48:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 22:48:23,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 22:48:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 22:48:23,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 22:48:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2021-11-20 22:48:23,692 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2021-11-20 22:48:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-20 22:48:23,693 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-20 22:48:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querycap [2021-11-20 22:48:23,693 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querycap [2021-11-20 22:48:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_start_preview [2021-11-20 22:48:23,693 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_start_preview [2021-11-20 22:48:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_70 [2021-11-20 22:48:23,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_70 [2021-11-20 22:48:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure fops_release [2021-11-20 22:48:23,694 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_release [2021-11-20 22:48:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_querybuf [2021-11-20 22:48:23,694 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_querybuf [2021-11-20 22:48:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure SAA7146_IER_ENABLE___0 [2021-11-20 22:48:23,694 INFO L138 BoogieDeclarations]: Found implementation of procedure SAA7146_IER_ENABLE___0 [2021-11-20 22:48:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_71 [2021-11-20 22:48:23,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_71 [2021-11-20 22:48:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 22:48:23,694 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 22:48:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_write_out_dma [2021-11-20 22:48:23,695 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_write_out_dma [2021-11-20 22:48:23,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 22:48:23,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 22:48:23,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 22:48:23,695 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_format_by_fourcc [2021-11-20 22:48:23,695 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_format_by_fourcc [2021-11-20 22:48:23,695 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_dma_free [2021-11-20 22:48:23,695 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_dma_free [2021-11-20 22:48:23,695 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_buffer_next [2021-11-20 22:48:23,695 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_buffer_next [2021-11-20 22:48:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure program_capture_engine [2021-11-20 22:48:23,696 INFO L138 BoogieDeclarations]: Found implementation of procedure program_capture_engine [2021-11-20 22:48:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_close [2021-11-20 22:48:23,696 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_close [2021-11-20 22:48:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-20 22:48:23,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-20 22:48:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_setup [2021-11-20 22:48:23,696 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_setup [2021-11-20 22:48:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 22:48:23,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 22:48:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-20 22:48:23,697 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-20 22:48:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure fops_write [2021-11-20 22:48:23,697 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_write [2021-11-20 22:48:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_read [2021-11-20 22:48:23,697 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_read [2021-11-20 22:48:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-20 22:48:23,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-20 22:48:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure fops_poll [2021-11-20 22:48:23,697 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_poll [2021-11-20 22:48:23,698 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-20 22:48:23,698 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-20 22:48:23,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 22:48:23,698 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-20 22:48:23,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-20 22:48:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-20 22:48:23,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-20 22:48:25,072 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 22:48:25,075 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 22:48:25,483 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 22:49:38,735 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-20 22:49:38,830 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 22:49:41,556 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 22:49:41,556 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-20 22:49:41,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:49:41 BoogieIcfgContainer [2021-11-20 22:49:41,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 22:49:41,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 22:49:41,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 22:49:41,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 22:49:41,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:48:16" (1/3) ... [2021-11-20 22:49:41,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b93d00d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:49:41, skipping insertion in model container [2021-11-20 22:49:41,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:21" (2/3) ... [2021-11-20 22:49:41,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b93d00d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:49:41, skipping insertion in model container [2021-11-20 22:49:41,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:49:41" (3/3) ... [2021-11-20 22:49:41,571 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i [2021-11-20 22:49:41,577 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 22:49:41,577 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 22:49:41,644 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 22:49:41,650 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 22:49:41,651 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 22:49:41,735 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) [2021-11-20 22:49:41,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2021-11-20 22:49:41,822 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:49:41,823 INFO L514 BasicCegarLoop]: 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] [2021-11-20 22:49:41,823 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:49:41,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:49:41,829 INFO L85 PathProgramCache]: Analyzing trace with hash 2088433037, now seen corresponding path program 1 times [2021-11-20 22:49:41,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:49:41,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393397596] [2021-11-20 22:49:41,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:49:41,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:49:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:49:43,351 INFO L134 CoverageAnalysis]: Checked inductivity of 8014 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8014 trivial. 0 not checked. [2021-11-20 22:49:43,351 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:49:43,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393397596] [2021-11-20 22:49:43,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393397596] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:49:43,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:49:43,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:49:43,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461978211] [2021-11-20 22:49:43,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:49:43,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:49:43,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:49:43,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:49:43,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:49:43,411 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) [2021-11-20 22:49:46,568 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:51,708 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:55,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:49:57,830 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:00,244 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:02,470 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:04,616 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:07,232 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:08,825 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:09,909 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:12,007 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:14,193 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:16,274 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:18,336 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:20,382 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:22,423 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:24,465 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:24,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:50:24,556 INFO L93 Difference]: Finished difference Result 7144 states and 10536 transitions. [2021-11-20 22:50:24,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:50:24,559 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 [2021-11-20 22:50:24,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:50:24,631 INFO L225 Difference]: With dead ends: 7144 [2021-11-20 22:50:24,631 INFO L226 Difference]: Without dead ends: 4662 [2021-11-20 22:50:24,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:50:24,663 INFO L933 BasicCegarLoop]: 3818 mSDtfsCounter, 3180 mSDsluCounter, 3605 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 13 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3192 SdHoareTripleChecker+Valid, 6920 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.7s IncrementalHoareTripleChecker+Time [2021-11-20 22:50:24,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3192 Valid, 6920 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1090 Invalid, 14 Unknown, 0 Unchecked, 40.7s Time] [2021-11-20 22:50:24,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4662 states. [2021-11-20 22:50:25,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4662 to 4653. [2021-11-20 22:50:25,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4653 states, 2977 states have (on average 1.324151830702049) internal successors, (3942), 3007 states have internal predecessors, (3942), 1412 states have call successors, (1412), 263 states have call predecessors, (1412), 263 states have return successors, (1424), 1395 states have call predecessors, (1424), 1412 states have call successors, (1424) [2021-11-20 22:50:25,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4653 states to 4653 states and 6778 transitions. [2021-11-20 22:50:25,593 INFO L78 Accepts]: Start accepts. Automaton has 4653 states and 6778 transitions. Word has length 510 [2021-11-20 22:50:25,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:50:25,596 INFO L470 AbstractCegarLoop]: Abstraction has 4653 states and 6778 transitions. [2021-11-20 22:50:25,596 INFO L471 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) [2021-11-20 22:50:25,596 INFO L276 IsEmpty]: Start isEmpty. Operand 4653 states and 6778 transitions. [2021-11-20 22:50:25,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2021-11-20 22:50:25,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:25,652 INFO L514 BasicCegarLoop]: 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] [2021-11-20 22:50:25,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 22:50:25,652 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:50:25,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:25,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1042870704, now seen corresponding path program 1 times [2021-11-20 22:50:25,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:25,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275673213] [2021-11-20 22:50:25,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:25,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:50:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:26,725 INFO L134 CoverageAnalysis]: Checked inductivity of 8014 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8014 trivial. 0 not checked. [2021-11-20 22:50:26,725 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:50:26,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275673213] [2021-11-20 22:50:26,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275673213] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:50:26,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:50:26,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:50:26,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083218499] [2021-11-20 22:50:26,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:50:26,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:50:26,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:50:26,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:50:26,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:50:26,734 INFO L87 Difference]: Start difference. First operand 4653 states and 6778 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) [2021-11-20 22:50:30,106 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:33,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:39,202 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:41,440 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:43,844 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:46,070 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:48,483 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:50,631 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:53,055 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:55,415 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:57,529 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:59,708 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:01,762 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:03,815 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:05,860 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:07,895 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:09,933 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:09,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:51:09,994 INFO L93 Difference]: Finished difference Result 13276 states and 19314 transitions. [2021-11-20 22:51:09,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:51:09,994 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 [2021-11-20 22:51:09,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:51:10,078 INFO L225 Difference]: With dead ends: 13276 [2021-11-20 22:51:10,078 INFO L226 Difference]: Without dead ends: 8710 [2021-11-20 22:51:10,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:51:10,110 INFO L933 BasicCegarLoop]: 3920 mSDtfsCounter, 3114 mSDsluCounter, 3550 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 13 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3126 SdHoareTripleChecker+Valid, 6969 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.9s IncrementalHoareTripleChecker+Time [2021-11-20 22:51:10,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3126 Valid, 6969 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1138 Invalid, 16 Unknown, 0 Unchecked, 42.9s Time] [2021-11-20 22:51:10,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8710 states. [2021-11-20 22:51:10,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8710 to 8699. [2021-11-20 22:51:10,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8699 states, 5594 states have (on average 1.3253485877726134) internal successors, (7414), 5655 states have internal predecessors, (7414), 2592 states have call successors, (2592), 512 states have call predecessors, (2592), 512 states have return successors, (2628), 2555 states have call predecessors, (2628), 2592 states have call successors, (2628) [2021-11-20 22:51:10,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8699 states to 8699 states and 12634 transitions. [2021-11-20 22:51:10,718 INFO L78 Accepts]: Start accepts. Automaton has 8699 states and 12634 transitions. Word has length 509 [2021-11-20 22:51:10,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:51:10,723 INFO L470 AbstractCegarLoop]: Abstraction has 8699 states and 12634 transitions. [2021-11-20 22:51:10,724 INFO L471 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) [2021-11-20 22:51:10,725 INFO L276 IsEmpty]: Start isEmpty. Operand 8699 states and 12634 transitions. [2021-11-20 22:51:10,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2021-11-20 22:51:10,761 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:51:10,762 INFO L514 BasicCegarLoop]: 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] [2021-11-20 22:51:10,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 22:51:10,762 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:51:10,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:51:10,763 INFO L85 PathProgramCache]: Analyzing trace with hash 683144539, now seen corresponding path program 1 times [2021-11-20 22:51:10,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:51:10,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367829701] [2021-11-20 22:51:10,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:10,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:51:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:51:11,308 INFO L134 CoverageAnalysis]: Checked inductivity of 9160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9160 trivial. 0 not checked. [2021-11-20 22:51:11,308 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:51:11,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367829701] [2021-11-20 22:51:11,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367829701] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:51:11,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:51:11,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:51:11,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975408343] [2021-11-20 22:51:11,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:51:11,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:51:11,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:51:11,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:51:11,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:51:11,312 INFO L87 Difference]: Start difference. First operand 8699 states and 12634 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) [2021-11-20 22:51:13,633 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:15,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:19,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:21,969 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:25,796 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:27,940 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:31,020 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:33,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:35,612 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:37,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:39,997 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:42,124 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:44,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:46,233 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:48,281 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:50,319 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:52,361 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:52,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:51:52,422 INFO L93 Difference]: Finished difference Result 25499 states and 37034 transitions. [2021-11-20 22:51:52,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:51:52,423 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 [2021-11-20 22:51:52,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:51:52,560 INFO L225 Difference]: With dead ends: 25499 [2021-11-20 22:51:52,561 INFO L226 Difference]: Without dead ends: 16887 [2021-11-20 22:51:52,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:51:52,621 INFO L933 BasicCegarLoop]: 3766 mSDtfsCounter, 3205 mSDsluCounter, 3572 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 13 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3221 SdHoareTripleChecker+Valid, 6832 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.6s IncrementalHoareTripleChecker+Time [2021-11-20 22:51:52,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3221 Valid, 6832 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1068 Invalid, 15 Unknown, 0 Unchecked, 40.6s Time] [2021-11-20 22:51:52,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16887 states. [2021-11-20 22:51:53,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16887 to 16864. [2021-11-20 22:51:53,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16864 states, 10872 states have (on average 1.3251471670345842) internal successors, (14407), 11003 states have internal predecessors, (14407), 4987 states have call successors, (4987), 1004 states have call predecessors, (4987), 1004 states have return successors, (5074), 4904 states have call predecessors, (5074), 4987 states have call successors, (5074) [2021-11-20 22:51:53,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16864 states to 16864 states and 24468 transitions. [2021-11-20 22:51:53,834 INFO L78 Accepts]: Start accepts. Automaton has 16864 states and 24468 transitions. Word has length 535 [2021-11-20 22:51:53,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:51:53,836 INFO L470 AbstractCegarLoop]: Abstraction has 16864 states and 24468 transitions. [2021-11-20 22:51:53,837 INFO L471 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) [2021-11-20 22:51:53,837 INFO L276 IsEmpty]: Start isEmpty. Operand 16864 states and 24468 transitions. [2021-11-20 22:51:54,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2021-11-20 22:51:54,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:51:54,048 INFO L514 BasicCegarLoop]: 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] [2021-11-20 22:51:54,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 22:51:54,048 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:51:54,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:51:54,049 INFO L85 PathProgramCache]: Analyzing trace with hash -2102995012, now seen corresponding path program 1 times [2021-11-20 22:51:54,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:51:54,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473386633] [2021-11-20 22:51:54,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:54,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:51:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:51:54,545 INFO L134 CoverageAnalysis]: Checked inductivity of 8109 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8106 trivial. 0 not checked. [2021-11-20 22:51:54,545 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:51:54,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473386633] [2021-11-20 22:51:54,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473386633] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:51:54,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:51:54,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:51:54,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358738265] [2021-11-20 22:51:54,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:51:54,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:51:54,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:51:54,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:51:54,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:51:54,549 INFO L87 Difference]: Start difference. First operand 16864 states and 24468 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) [2021-11-20 22:51:57,255 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:59,428 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:52:01,675 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:03,829 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:06,917 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-20 22:52:08,882 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:52:10,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:52:12,884 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:52:15,406 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:52:17,630 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:19,853 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:22,319 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:52:24,913 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:27,017 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:30,180 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:32,251 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:52:34,276 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:52:36,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:52:38,335 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:52:40,382 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:40,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:52:40,451 INFO L93 Difference]: Finished difference Result 35504 states and 51424 transitions. [2021-11-20 22:52:40,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:52:40,451 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 [2021-11-20 22:52:40,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:52:40,557 INFO L225 Difference]: With dead ends: 35504 [2021-11-20 22:52:40,557 INFO L226 Difference]: Without dead ends: 18727 [2021-11-20 22:52:40,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:52:40,628 INFO L933 BasicCegarLoop]: 3668 mSDtfsCounter, 2449 mSDsluCounter, 3563 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 12 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2459 SdHoareTripleChecker+Valid, 6727 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.5s IncrementalHoareTripleChecker+Time [2021-11-20 22:52:40,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2459 Valid, 6727 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1105 Invalid, 15 Unknown, 0 Unchecked, 45.5s Time] [2021-11-20 22:52:40,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18727 states. [2021-11-20 22:52:41,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18727 to 18717. [2021-11-20 22:52:41,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18717 states, 12079 states have (on average 1.3227916218229987) internal successors, (15978), 12223 states have internal predecessors, (15978), 5495 states have call successors, (5495), 1142 states have call predecessors, (5495), 1142 states have return successors, (5591), 5404 states have call predecessors, (5591), 5495 states have call successors, (5591) [2021-11-20 22:52:41,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18717 states to 18717 states and 27064 transitions. [2021-11-20 22:52:41,861 INFO L78 Accepts]: Start accepts. Automaton has 18717 states and 27064 transitions. Word has length 533 [2021-11-20 22:52:41,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:52:41,862 INFO L470 AbstractCegarLoop]: Abstraction has 18717 states and 27064 transitions. [2021-11-20 22:52:41,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-20 22:52:41,863 INFO L276 IsEmpty]: Start isEmpty. Operand 18717 states and 27064 transitions. [2021-11-20 22:52:41,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2021-11-20 22:52:41,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:52:41,899 INFO L514 BasicCegarLoop]: 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] [2021-11-20 22:52:41,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 22:52:41,900 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:52:41,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:52:41,901 INFO L85 PathProgramCache]: Analyzing trace with hash 730053745, now seen corresponding path program 1 times [2021-11-20 22:52:41,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:52:41,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679153460] [2021-11-20 22:52:41,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:52:41,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:52:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:52:42,587 INFO L134 CoverageAnalysis]: Checked inductivity of 9160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9160 trivial. 0 not checked. [2021-11-20 22:52:42,587 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:52:42,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679153460] [2021-11-20 22:52:42,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679153460] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:52:42,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:52:42,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:52:42,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329268392] [2021-11-20 22:52:42,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:52:42,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:52:42,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:52:42,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:52:42,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:52:42,590 INFO L87 Difference]: Start difference. First operand 18717 states and 27064 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) [2021-11-20 22:52:45,095 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-20 22:52:47,773 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:52:49,989 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:54,002 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:56,053 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:58,244 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:53:00,883 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:03,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:05,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:07,617 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:53:10,001 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:53:13,696 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:15,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:17,374 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:53:19,444 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:21,494 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:53:23,539 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:53:25,575 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:53:27,620 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:29,681 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:53:29,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:53:29,757 INFO L93 Difference]: Finished difference Result 50889 states and 73304 transitions. [2021-11-20 22:53:29,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:53:29,758 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 [2021-11-20 22:53:29,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:53:29,943 INFO L225 Difference]: With dead ends: 50889 [2021-11-20 22:53:29,943 INFO L226 Difference]: Without dead ends: 32259 [2021-11-20 22:53:30,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:53:30,021 INFO L933 BasicCegarLoop]: 3831 mSDtfsCounter, 2865 mSDsluCounter, 3519 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 7 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2880 SdHoareTripleChecker+Valid, 6858 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.4s IncrementalHoareTripleChecker+Time [2021-11-20 22:53:30,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2880 Valid, 6858 Invalid, 1139 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1115 Invalid, 17 Unknown, 0 Unchecked, 46.4s Time] [2021-11-20 22:53:30,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32259 states. [2021-11-20 22:53:31,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32259 to 32213. [2021-11-20 22:53:31,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32213 states, 20720 states have (on average 1.315395752895753) internal successors, (27255), 20999 states have internal predecessors, (27255), 9409 states have call successors, (9409), 2083 states have call predecessors, (9409), 2083 states have return successors, (9615), 9227 states have call predecessors, (9615), 9409 states have call successors, (9615) [2021-11-20 22:53:32,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32213 states to 32213 states and 46279 transitions. [2021-11-20 22:53:32,319 INFO L78 Accepts]: Start accepts. Automaton has 32213 states and 46279 transitions. Word has length 561 [2021-11-20 22:53:32,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:53:32,320 INFO L470 AbstractCegarLoop]: Abstraction has 32213 states and 46279 transitions. [2021-11-20 22:53:32,320 INFO L471 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) [2021-11-20 22:53:32,321 INFO L276 IsEmpty]: Start isEmpty. Operand 32213 states and 46279 transitions. [2021-11-20 22:53:32,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2021-11-20 22:53:32,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:53:32,402 INFO L514 BasicCegarLoop]: 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] [2021-11-20 22:53:32,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 22:53:32,403 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:53:32,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:53:32,404 INFO L85 PathProgramCache]: Analyzing trace with hash -361365289, now seen corresponding path program 1 times [2021-11-20 22:53:32,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:53:32,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296916857] [2021-11-20 22:53:32,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:53:32,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:53:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:53:33,165 INFO L134 CoverageAnalysis]: Checked inductivity of 8321 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8314 trivial. 0 not checked. [2021-11-20 22:53:33,165 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:53:33,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296916857] [2021-11-20 22:53:33,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296916857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:53:33,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:53:33,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:53:33,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408528053] [2021-11-20 22:53:33,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:53:33,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:53:33,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:53:33,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:53:33,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:53:33,168 INFO L87 Difference]: Start difference. First operand 32213 states and 46279 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) [2021-11-20 22:53:36,963 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:53:38,924 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:42,882 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:44,822 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:47,233 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:53:49,808 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:53,843 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:55,998 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:58,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:54:00,766 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:54:03,238 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:54:05,847 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:54:07,155 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:54:09,275 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:54:11,423 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:54:13,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:54:15,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:54:17,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:54:19,615 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:54:21,655 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:54:21,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:54:21,753 INFO L93 Difference]: Finished difference Result 77385 states and 111280 transitions. [2021-11-20 22:54:21,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:54:21,767 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 [2021-11-20 22:54:21,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:54:22,151 INFO L225 Difference]: With dead ends: 77385 [2021-11-20 22:54:22,151 INFO L226 Difference]: Without dead ends: 46535 [2021-11-20 22:54:22,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:54:22,260 INFO L933 BasicCegarLoop]: 5259 mSDtfsCounter, 3226 mSDsluCounter, 3535 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 9 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3241 SdHoareTripleChecker+Valid, 8291 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1450 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.6s IncrementalHoareTripleChecker+Time [2021-11-20 22:54:22,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3241 Valid, 8291 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1450 Invalid, 14 Unknown, 0 Unchecked, 47.6s Time] [2021-11-20 22:54:22,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46535 states. [2021-11-20 22:54:24,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46535 to 46509. [2021-11-20 22:54:24,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46509 states, 29949 states have (on average 1.3158369227687068) internal successors, (39408), 30360 states have internal predecessors, (39408), 13526 states have call successors, (13526), 3033 states have call predecessors, (13526), 3033 states have return successors, (13874), 13254 states have call predecessors, (13874), 13526 states have call successors, (13874) [2021-11-20 22:54:24,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46509 states to 46509 states and 66808 transitions. [2021-11-20 22:54:24,830 INFO L78 Accepts]: Start accepts. Automaton has 46509 states and 66808 transitions. Word has length 566 [2021-11-20 22:54:24,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:54:24,833 INFO L470 AbstractCegarLoop]: Abstraction has 46509 states and 66808 transitions. [2021-11-20 22:54:24,835 INFO L471 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) [2021-11-20 22:54:24,836 INFO L276 IsEmpty]: Start isEmpty. Operand 46509 states and 66808 transitions. [2021-11-20 22:54:24,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2021-11-20 22:54:24,880 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:54:24,881 INFO L514 BasicCegarLoop]: 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] [2021-11-20 22:54:24,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 22:54:24,881 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:54:24,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:54:24,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1506790214, now seen corresponding path program 1 times [2021-11-20 22:54:24,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:54:24,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335932518] [2021-11-20 22:54:24,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:54:24,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:54:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:54:25,647 INFO L134 CoverageAnalysis]: Checked inductivity of 8321 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8314 trivial. 0 not checked. [2021-11-20 22:54:25,648 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:54:25,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335932518] [2021-11-20 22:54:25,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335932518] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:54:25,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:54:25,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:54:25,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288471892] [2021-11-20 22:54:25,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:54:25,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:54:25,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:54:25,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:54:25,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:54:25,651 INFO L87 Difference]: Start difference. First operand 46509 states and 66808 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) [2021-11-20 22:54:28,169 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-20 22:54:30,410 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:54:32,998 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:54:35,082 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:54:36,202 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:54:40,427 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:54:42,648 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:54:44,325 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:54:48,041 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:54:50,250 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:54:53,031 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:54:56,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:54:58,456 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:55:01,167 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:55:03,222 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:55:05,528 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:55:07,573 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:55:09,640 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:55:11,685 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:55:12,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:55:12,080 INFO L93 Difference]: Finished difference Result 112003 states and 160953 transitions. [2021-11-20 22:55:12,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:55:12,081 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 [2021-11-20 22:55:12,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:55:12,481 INFO L225 Difference]: With dead ends: 112003 [2021-11-20 22:55:12,481 INFO L226 Difference]: Without dead ends: 66857 [2021-11-20 22:55:12,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:55:12,614 INFO L933 BasicCegarLoop]: 5707 mSDtfsCounter, 3094 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 1536 mSolverCounterSat, 9 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3112 SdHoareTripleChecker+Valid, 8740 SdHoareTripleChecker+Invalid, 1561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1536 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.7s IncrementalHoareTripleChecker+Time [2021-11-20 22:55:12,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3112 Valid, 8740 Invalid, 1561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1536 Invalid, 16 Unknown, 0 Unchecked, 44.7s Time] [2021-11-20 22:55:12,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66857 states. [2021-11-20 22:55:15,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66857 to 66821. [2021-11-20 22:55:15,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66821 states, 43069 states have (on average 1.3159348951682184) internal successors, (56676), 43674 states have internal predecessors, (56676), 19344 states have call successors, (19344), 4407 states have call predecessors, (19344), 4407 states have return successors, (19878), 18938 states have call predecessors, (19878), 19344 states have call successors, (19878) [2021-11-20 22:55:15,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66821 states to 66821 states and 95898 transitions. [2021-11-20 22:55:16,011 INFO L78 Accepts]: Start accepts. Automaton has 66821 states and 95898 transitions. Word has length 567 [2021-11-20 22:55:16,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:55:16,013 INFO L470 AbstractCegarLoop]: Abstraction has 66821 states and 95898 transitions. [2021-11-20 22:55:16,013 INFO L471 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) [2021-11-20 22:55:16,014 INFO L276 IsEmpty]: Start isEmpty. Operand 66821 states and 95898 transitions. [2021-11-20 22:55:16,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2021-11-20 22:55:16,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:55:16,055 INFO L514 BasicCegarLoop]: 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] [2021-11-20 22:55:16,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 22:55:16,056 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:55:16,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:55:16,057 INFO L85 PathProgramCache]: Analyzing trace with hash -50172673, now seen corresponding path program 1 times [2021-11-20 22:55:16,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:55:16,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996405569] [2021-11-20 22:55:16,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:55:16,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:55:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:55:16,683 INFO L134 CoverageAnalysis]: Checked inductivity of 9484 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9477 trivial. 0 not checked. [2021-11-20 22:55:16,683 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:55:16,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996405569] [2021-11-20 22:55:16,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996405569] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:55:16,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:55:16,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:55:16,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927454756] [2021-11-20 22:55:16,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:55:16,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:55:16,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:55:16,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:55:16,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:55:16,687 INFO L87 Difference]: Start difference. First operand 66821 states and 95898 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) [2021-11-20 22:55:19,225 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-20 22:55:21,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:55:24,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:55:28,276 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:55:30,988 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:55:33,212 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:55:37,485 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:55:39,715 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:55:42,529 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:55:45,893 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:55:47,574 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:55:49,962 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:55:52,632 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:55:54,687 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:55:56,948 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:55:58,988 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:56:01,023 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:56:03,060 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:03,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:56:03,902 INFO L93 Difference]: Finished difference Result 162962 states and 234024 transitions. [2021-11-20 22:56:03,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:56:03,903 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 [2021-11-20 22:56:03,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:56:04,450 INFO L225 Difference]: With dead ends: 162962 [2021-11-20 22:56:04,450 INFO L226 Difference]: Without dead ends: 97504 [2021-11-20 22:56:04,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:56:04,617 INFO L933 BasicCegarLoop]: 5788 mSDtfsCounter, 3171 mSDsluCounter, 3560 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 9 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3189 SdHoareTripleChecker+Valid, 8843 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1530 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.7s IncrementalHoareTripleChecker+Time [2021-11-20 22:56:04,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3189 Valid, 8843 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1530 Invalid, 15 Unknown, 0 Unchecked, 44.7s Time] [2021-11-20 22:56:04,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97504 states. [2021-11-20 22:56:08,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97504 to 97438. [2021-11-20 22:56:08,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97438 states, 62819 states have (on average 1.3159235263216542) internal successors, (82665), 63728 states have internal predecessors, (82665), 28157 states have call successors, (28157), 6461 states have call predecessors, (28157), 6461 states have return successors, (28973), 27541 states have call predecessors, (28973), 28157 states have call successors, (28973) [2021-11-20 22:56:09,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97438 states to 97438 states and 139795 transitions. [2021-11-20 22:56:09,111 INFO L78 Accepts]: Start accepts. Automaton has 97438 states and 139795 transitions. Word has length 591 [2021-11-20 22:56:09,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:56:09,113 INFO L470 AbstractCegarLoop]: Abstraction has 97438 states and 139795 transitions. [2021-11-20 22:56:09,113 INFO L471 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) [2021-11-20 22:56:09,114 INFO L276 IsEmpty]: Start isEmpty. Operand 97438 states and 139795 transitions. [2021-11-20 22:56:09,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2021-11-20 22:56:09,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:56:09,205 INFO L514 BasicCegarLoop]: trace histogram [48, 46, 46, 46, 46, 46, 46, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:56:09,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 22:56:09,206 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:56:09,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:56:09,207 INFO L85 PathProgramCache]: Analyzing trace with hash -2114839409, now seen corresponding path program 1 times [2021-11-20 22:56:09,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:56:09,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667049892] [2021-11-20 22:56:09,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:56:09,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:56:09,423 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 22:56:09,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1327338526] [2021-11-20 22:56:09,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:56:09,424 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:56:09,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:56:09,426 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:56:09,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 22:56:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:56:11,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 8916 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 22:56:11,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:56:13,370 INFO L134 CoverageAnalysis]: Checked inductivity of 8488 backedges. 1219 proven. 0 refuted. 0 times theorem prover too weak. 7269 trivial. 0 not checked. [2021-11-20 22:56:13,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:56:13,371 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:56:13,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667049892] [2021-11-20 22:56:13,371 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 22:56:13,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327338526] [2021-11-20 22:56:13,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327338526] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:56:13,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:56:13,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:56:13,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051378869] [2021-11-20 22:56:13,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:56:13,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:56:13,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:56:13,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:56:13,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:56:13,374 INFO L87 Difference]: Start difference. First operand 97438 states and 139795 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2021-11-20 22:56:15,649 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-20 22:56:17,821 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:56:19,836 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:56:21,948 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:24,652 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:26,726 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:56:29,190 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:32,773 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:56:34,917 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:37,076 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:41,138 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:56:43,688 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:45,976 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:48,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:56:50,778 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:53,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:56:55,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:56:57,249 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:56:59,285 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:01,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:57:01,349 INFO L93 Difference]: Finished difference Result 282864 states and 405817 transitions. [2021-11-20 22:57:01,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:57:01,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) Word has length 602 [2021-11-20 22:57:01,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:57:02,381 INFO L225 Difference]: With dead ends: 282864 [2021-11-20 22:57:02,381 INFO L226 Difference]: Without dead ends: 185513 [2021-11-20 22:57:02,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 600 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:57:02,639 INFO L933 BasicCegarLoop]: 4287 mSDtfsCounter, 3132 mSDsluCounter, 3562 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 9 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3148 SdHoareTripleChecker+Valid, 7342 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.6s IncrementalHoareTripleChecker+Time [2021-11-20 22:57:02,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3148 Valid, 7342 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1178 Invalid, 17 Unknown, 0 Unchecked, 43.6s Time] [2021-11-20 22:57:02,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185513 states. [2021-11-20 22:57:10,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185513 to 185356. [2021-11-20 22:57:10,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185356 states, 119400 states have (on average 1.3143048576214404) internal successors, (156928), 121254 states have internal predecessors, (156928), 53592 states have call successors, (53592), 12363 states have call predecessors, (53592), 12363 states have return successors, (55238), 52269 states have call predecessors, (55238), 53592 states have call successors, (55238) [2021-11-20 22:57:11,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185356 states to 185356 states and 265758 transitions. [2021-11-20 22:57:11,652 INFO L78 Accepts]: Start accepts. Automaton has 185356 states and 265758 transitions. Word has length 602 [2021-11-20 22:57:11,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:57:11,653 INFO L470 AbstractCegarLoop]: Abstraction has 185356 states and 265758 transitions. [2021-11-20 22:57:11,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2021-11-20 22:57:11,654 INFO L276 IsEmpty]: Start isEmpty. Operand 185356 states and 265758 transitions. [2021-11-20 22:57:12,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2021-11-20 22:57:12,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:57:12,241 INFO L514 BasicCegarLoop]: 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] [2021-11-20 22:57:12,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-20 22:57:12,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4d5d29e-e98f-4cee-8f1a-41d5c935862f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:57:12,456 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:57:12,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:57:12,456 INFO L85 PathProgramCache]: Analyzing trace with hash 239258386, now seen corresponding path program 1 times [2021-11-20 22:57:12,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:57:12,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760800013] [2021-11-20 22:57:12,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:57:12,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:57:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:57:12,956 INFO L134 CoverageAnalysis]: Checked inductivity of 9482 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9475 trivial. 0 not checked. [2021-11-20 22:57:12,957 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:57:12,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760800013] [2021-11-20 22:57:12,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760800013] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:57:12,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:57:12,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:57:12,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457051379] [2021-11-20 22:57:12,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:57:12,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:57:12,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:57:12,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:57:12,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:57:12,960 INFO L87 Difference]: Start difference. First operand 185356 states and 265758 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) [2021-11-20 22:57:15,346 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-20 22:57:18,091 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:57:20,369 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:22,045 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:24,692 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:57:26,785 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:57:29,255 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:31,079 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:33,976 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:57:36,316 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:38,543 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:41,514 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:45,471 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:48,261 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:51,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:57:53,024 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:57:55,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:57,987 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:58:00,044 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:58:02,088 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:58:04,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:58:06,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:58:09,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:58:09,764 INFO L93 Difference]: Finished difference Result 448518 states and 642235 transitions. [2021-11-20 22:58:09,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:58:09,764 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 [2021-11-20 22:58:09,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:58:11,428 INFO L225 Difference]: With dead ends: 448518 [2021-11-20 22:58:11,442 INFO L226 Difference]: Without dead ends: 264997 [2021-11-20 22:58:11,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:58:11,950 INFO L933 BasicCegarLoop]: 5588 mSDtfsCounter, 2896 mSDsluCounter, 3516 mSDsCounter, 0 mSdLazyCounter, 1502 mSolverCounterSat, 4 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2911 SdHoareTripleChecker+Valid, 8613 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1502 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.4s IncrementalHoareTripleChecker+Time [2021-11-20 22:58:11,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2911 Valid, 8613 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1502 Invalid, 17 Unknown, 0 Unchecked, 49.4s Time] [2021-11-20 22:58:12,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264997 states.