./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-net-irda-via-ircc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba --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 c727ee56ff8cf558c3dc08b64ebc267261ea17bdfb88e50734daf71ad89adc7d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:25:15,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:25:15,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:25:15,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:25:15,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:25:15,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:25:15,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:25:15,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:25:15,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:25:15,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:25:15,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:25:15,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:25:15,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:25:15,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:25:15,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:25:15,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:25:15,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:25:15,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:25:15,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:25:15,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:25:15,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:25:15,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:25:15,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:25:15,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:25:15,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:25:15,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:25:15,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:25:15,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:25:15,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:25:15,173 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:25:15,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:25:15,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:25:15,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:25:15,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:25:15,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:25:15,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:25:15,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:25:15,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:25:15,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:25:15,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:25:15,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:25:15,189 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:25:15,232 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:25:15,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:25:15,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:25:15,233 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:25:15,234 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:25:15,234 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:25:15,234 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:25:15,235 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:25:15,235 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:25:15,235 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:25:15,236 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:25:15,236 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:25:15,236 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:25:15,236 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:25:15,237 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:25:15,237 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:25:15,237 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:25:15,237 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:25:15,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:25:15,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:25:15,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:25:15,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:25:15,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:25:15,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:25:15,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:25:15,239 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:25:15,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:25:15,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:25:15,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:25:15,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:25:15,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:25:15,241 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:25:15,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:25:15,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:25:15,241 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:25:15,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:25:15,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:25:15,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:25:15,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c727ee56ff8cf558c3dc08b64ebc267261ea17bdfb88e50734daf71ad89adc7d [2022-11-22 02:25:15,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:25:15,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:25:15,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:25:15,562 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:25:15,563 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:25:15,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2022-11-22 02:25:18,634 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:25:19,277 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:25:19,278 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2022-11-22 02:25:19,325 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba/data/6d3b5c996/c8356ea801bf4a81a9f32c044a17e112/FLAG21c67d241 [2022-11-22 02:25:19,340 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba/data/6d3b5c996/c8356ea801bf4a81a9f32c044a17e112 [2022-11-22 02:25:19,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:25:19,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:25:19,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:25:19,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:25:19,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:25:19,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:25:19" (1/1) ... [2022-11-22 02:25:19,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@645a0f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:19, skipping insertion in model container [2022-11-22 02:25:19,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:25:19" (1/1) ... [2022-11-22 02:25:19,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:25:19,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:25:22,294 WARN L237 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_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328445,328458] [2022-11-22 02:25:22,300 WARN L237 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_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328590,328603] [2022-11-22 02:25:22,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:25:22,349 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:25:22,803 WARN L237 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_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328445,328458] [2022-11-22 02:25:22,804 WARN L237 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_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328590,328603] [2022-11-22 02:25:22,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:25:22,966 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:25:22,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:22 WrapperNode [2022-11-22 02:25:22,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:25:22,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:25:22,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:25:22,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:25:22,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:22" (1/1) ... [2022-11-22 02:25:23,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:22" (1/1) ... [2022-11-22 02:25:23,217 INFO L138 Inliner]: procedures = 388, calls = 2133, calls flagged for inlining = 154, calls inlined = 135, statements flattened = 4308 [2022-11-22 02:25:23,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:25:23,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:25:23,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:25:23,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:25:23,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:22" (1/1) ... [2022-11-22 02:25:23,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:22" (1/1) ... [2022-11-22 02:25:23,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:22" (1/1) ... [2022-11-22 02:25:23,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:22" (1/1) ... [2022-11-22 02:25:23,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:22" (1/1) ... [2022-11-22 02:25:23,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:22" (1/1) ... [2022-11-22 02:25:23,447 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:22" (1/1) ... [2022-11-22 02:25:23,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:22" (1/1) ... [2022-11-22 02:25:23,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:25:23,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:25:23,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:25:23,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:25:23,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:22" (1/1) ... [2022-11-22 02:25:23,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:25:23,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:25:23,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:25:23,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:25:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2022-11-22 02:25:23,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2022-11-22 02:25:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 02:25:23,581 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 02:25:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2022-11-22 02:25:23,581 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2022-11-22 02:25:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2022-11-22 02:25:23,582 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2022-11-22 02:25:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 02:25:23,582 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 02:25:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 02:25:23,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 02:25:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 02:25:23,583 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 02:25:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2022-11-22 02:25:23,583 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2022-11-22 02:25:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2022-11-22 02:25:23,583 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2022-11-22 02:25:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2022-11-22 02:25:23,584 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2022-11-22 02:25:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-22 02:25:23,584 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-22 02:25:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 02:25:23,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 02:25:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2022-11-22 02:25:23,586 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2022-11-22 02:25:23,586 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2022-11-22 02:25:23,586 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2022-11-22 02:25:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-22 02:25:23,587 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-22 02:25:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 02:25:23,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 02:25:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:25:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2022-11-22 02:25:23,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2022-11-22 02:25:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2022-11-22 02:25:23,588 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2022-11-22 02:25:23,589 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-22 02:25:23,589 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-22 02:25:23,589 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2022-11-22 02:25:23,589 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2022-11-22 02:25:23,589 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 02:25:23,589 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 02:25:23,590 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2022-11-22 02:25:23,590 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2022-11-22 02:25:23,590 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2022-11-22 02:25:23,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2022-11-22 02:25:23,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 02:25:23,591 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2022-11-22 02:25:23,591 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2022-11-22 02:25:23,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2022-11-22 02:25:23,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2022-11-22 02:25:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2022-11-22 02:25:23,593 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2022-11-22 02:25:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 02:25:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 02:25:23,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 02:25:23,594 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2022-11-22 02:25:23,594 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2022-11-22 02:25:23,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:25:23,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 02:25:23,595 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 02:25:23,595 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2022-11-22 02:25:23,595 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2022-11-22 02:25:23,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 02:25:23,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 02:25:23,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 02:25:23,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 02:25:23,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-22 02:25:23,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-22 02:25:23,597 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2022-11-22 02:25:23,598 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2022-11-22 02:25:23,598 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2022-11-22 02:25:23,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2022-11-22 02:25:23,598 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2022-11-22 02:25:23,599 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2022-11-22 02:25:23,599 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2022-11-22 02:25:23,600 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2022-11-22 02:25:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:25:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 02:25:23,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 02:25:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2022-11-22 02:25:23,600 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2022-11-22 02:25:23,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:25:23,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 02:25:23,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 02:25:23,601 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 02:25:23,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 02:25:23,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:25:23,602 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 02:25:23,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 02:25:23,603 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:25:23,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:25:23,603 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2022-11-22 02:25:23,603 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2022-11-22 02:25:23,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-22 02:25:23,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-22 02:25:23,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-22 02:25:23,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-22 02:25:23,604 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-22 02:25:23,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-22 02:25:23,605 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 02:25:23,605 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 02:25:23,605 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2022-11-22 02:25:23,605 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2022-11-22 02:25:23,605 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2022-11-22 02:25:23,606 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2022-11-22 02:25:23,606 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 02:25:23,607 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 02:25:23,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 02:25:23,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 02:25:23,610 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2022-11-22 02:25:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2022-11-22 02:25:23,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:25:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:25:23,612 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2022-11-22 02:25:23,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2022-11-22 02:25:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 02:25:23,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 02:25:23,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 02:25:23,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 02:25:23,618 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2022-11-22 02:25:23,619 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2022-11-22 02:25:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-11-22 02:25:23,619 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-11-22 02:25:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2022-11-22 02:25:23,619 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2022-11-22 02:25:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2022-11-22 02:25:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2022-11-22 02:25:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 02:25:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 02:25:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2022-11-22 02:25:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2022-11-22 02:25:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2022-11-22 02:25:23,621 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2022-11-22 02:25:23,621 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 02:25:23,621 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 02:25:23,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:25:23,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:25:23,621 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2022-11-22 02:25:23,621 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2022-11-22 02:25:23,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:25:23,622 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 02:25:23,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 02:25:23,622 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-22 02:25:23,622 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-22 02:25:23,622 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 02:25:23,622 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 02:25:23,623 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-22 02:25:23,623 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-22 02:25:23,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 02:25:23,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 02:25:23,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-22 02:25:23,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-22 02:25:23,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 02:25:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 02:25:23,624 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2022-11-22 02:25:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2022-11-22 02:25:23,624 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-22 02:25:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-22 02:25:23,624 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-22 02:25:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-22 02:25:23,625 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 02:25:23,625 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 02:25:23,625 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 02:25:23,625 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 02:25:23,626 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-22 02:25:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-22 02:25:23,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:25:23,626 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-22 02:25:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-22 02:25:23,626 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2022-11-22 02:25:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2022-11-22 02:25:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-22 02:25:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-22 02:25:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 02:25:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 02:25:23,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2022-11-22 02:25:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2022-11-22 02:25:23,628 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2022-11-22 02:25:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2022-11-22 02:25:23,629 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2022-11-22 02:25:23,630 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2022-11-22 02:25:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 02:25:23,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 02:25:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2022-11-22 02:25:23,631 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2022-11-22 02:25:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2022-11-22 02:25:23,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2022-11-22 02:25:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2022-11-22 02:25:23,631 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2022-11-22 02:25:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-22 02:25:23,632 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-22 02:25:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:25:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-22 02:25:23,632 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-22 02:25:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 02:25:23,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 02:25:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2022-11-22 02:25:23,633 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2022-11-22 02:25:24,396 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:25:24,399 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:25:24,776 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 02:25:29,131 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 02:25:30,100 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:25:31,300 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:25:31,300 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:25:31,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:25:31 BoogieIcfgContainer [2022-11-22 02:25:31,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:25:31,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:25:31,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:25:31,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:25:31,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:25:19" (1/3) ... [2022-11-22 02:25:31,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23214cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:25:31, skipping insertion in model container [2022-11-22 02:25:31,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:22" (2/3) ... [2022-11-22 02:25:31,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23214cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:25:31, skipping insertion in model container [2022-11-22 02:25:31,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:25:31" (3/3) ... [2022-11-22 02:25:31,314 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2022-11-22 02:25:31,334 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:25:31,334 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:25:31,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:25:31,449 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1c884e9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:25:31,449 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:25:31,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 1559 states, 807 states have (on average 1.241635687732342) internal successors, (1002), 831 states have internal predecessors, (1002), 660 states have call successors, (660), 92 states have call predecessors, (660), 91 states have return successors, (656), 644 states have call predecessors, (656), 656 states have call successors, (656) [2022-11-22 02:25:31,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-22 02:25:31,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:31,514 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:25:31,515 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:25:31,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:31,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1168220015, now seen corresponding path program 1 times [2022-11-22 02:25:31,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:31,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332689625] [2022-11-22 02:25:31,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:31,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:32,348 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-22 02:25:32,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:32,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332689625] [2022-11-22 02:25:32,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332689625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:32,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:32,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:25:32,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487712796] [2022-11-22 02:25:32,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:32,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:25:32,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:32,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:25:32,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:25:32,390 INFO L87 Difference]: Start difference. First operand has 1559 states, 807 states have (on average 1.241635687732342) internal successors, (1002), 831 states have internal predecessors, (1002), 660 states have call successors, (660), 92 states have call predecessors, (660), 91 states have return successors, (656), 644 states have call predecessors, (656), 656 states have call successors, (656) Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-22 02:25:34,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:35,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:37,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:41,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:41,010 INFO L93 Difference]: Finished difference Result 4334 states and 6480 transitions. [2022-11-22 02:25:41,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:25:41,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 127 [2022-11-22 02:25:41,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:41,061 INFO L225 Difference]: With dead ends: 4334 [2022-11-22 02:25:41,061 INFO L226 Difference]: Without dead ends: 2729 [2022-11-22 02:25:41,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:25:41,085 INFO L413 NwaCegarLoop]: 2720 mSDtfsCounter, 1852 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1852 SdHoareTripleChecker+Valid, 4818 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:41,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1852 Valid, 4818 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-11-22 02:25:41,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2022-11-22 02:25:41,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2725. [2022-11-22 02:25:41,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2725 states, 1416 states have (on average 1.2337570621468927) internal successors, (1747), 1462 states have internal predecessors, (1747), 1143 states have call successors, (1143), 166 states have call predecessors, (1143), 165 states have return successors, (1160), 1116 states have call predecessors, (1160), 1143 states have call successors, (1160) [2022-11-22 02:25:41,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2725 states to 2725 states and 4050 transitions. [2022-11-22 02:25:41,478 INFO L78 Accepts]: Start accepts. Automaton has 2725 states and 4050 transitions. Word has length 127 [2022-11-22 02:25:41,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:41,479 INFO L495 AbstractCegarLoop]: Abstraction has 2725 states and 4050 transitions. [2022-11-22 02:25:41,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-22 02:25:41,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2725 states and 4050 transitions. [2022-11-22 02:25:41,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-22 02:25:41,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:41,493 INFO L195 NwaCegarLoop]: trace histogram [8, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 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] [2022-11-22 02:25:41,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:25:41,494 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:25:41,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:41,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1945908145, now seen corresponding path program 1 times [2022-11-22 02:25:41,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:41,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011519216] [2022-11-22 02:25:41,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:41,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:42,090 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2022-11-22 02:25:42,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:42,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011519216] [2022-11-22 02:25:42,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011519216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:42,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:42,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:25:42,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154638159] [2022-11-22 02:25:42,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:42,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:25:42,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:42,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:25:42,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:25:42,101 INFO L87 Difference]: Start difference. First operand 2725 states and 4050 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 02:25:48,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:48,125 INFO L93 Difference]: Finished difference Result 7256 states and 10798 transitions. [2022-11-22 02:25:48,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:25:48,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 181 [2022-11-22 02:25:48,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:48,164 INFO L225 Difference]: With dead ends: 7256 [2022-11-22 02:25:48,165 INFO L226 Difference]: Without dead ends: 4542 [2022-11-22 02:25:48,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:25:48,186 INFO L413 NwaCegarLoop]: 2567 mSDtfsCounter, 1571 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 4597 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:48,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 4597 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-22 02:25:48,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4542 states. [2022-11-22 02:25:48,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4542 to 4538. [2022-11-22 02:25:48,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4538 states, 2346 states have (on average 1.2310315430520034) internal successors, (2888), 2414 states have internal predecessors, (2888), 1913 states have call successors, (1913), 279 states have call predecessors, (1913), 278 states have return successors, (1930), 1876 states have call predecessors, (1930), 1913 states have call successors, (1930) [2022-11-22 02:25:48,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4538 states to 4538 states and 6731 transitions. [2022-11-22 02:25:48,629 INFO L78 Accepts]: Start accepts. Automaton has 4538 states and 6731 transitions. Word has length 181 [2022-11-22 02:25:48,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:48,631 INFO L495 AbstractCegarLoop]: Abstraction has 4538 states and 6731 transitions. [2022-11-22 02:25:48,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 02:25:48,632 INFO L276 IsEmpty]: Start isEmpty. Operand 4538 states and 6731 transitions. [2022-11-22 02:25:48,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-22 02:25:48,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:48,651 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-11-22 02:25:48,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:25:48,651 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:25:48,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:48,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1863447993, now seen corresponding path program 1 times [2022-11-22 02:25:48,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:48,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881412199] [2022-11-22 02:25:48,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:48,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:48,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:49,240 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-11-22 02:25:49,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:49,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881412199] [2022-11-22 02:25:49,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881412199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:49,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:49,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:25:49,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432218449] [2022-11-22 02:25:49,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:49,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:25:49,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:49,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:25:49,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:25:49,249 INFO L87 Difference]: Start difference. First operand 4538 states and 6731 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-22 02:25:50,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:52,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:53,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:57,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:57,120 INFO L93 Difference]: Finished difference Result 10882 states and 16159 transitions. [2022-11-22 02:25:57,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:25:57,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 225 [2022-11-22 02:25:57,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:57,178 INFO L225 Difference]: With dead ends: 10882 [2022-11-22 02:25:57,178 INFO L226 Difference]: Without dead ends: 6355 [2022-11-22 02:25:57,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:25:57,211 INFO L413 NwaCegarLoop]: 3507 mSDtfsCounter, 1580 mSDsluCounter, 2014 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 5521 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:57,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1580 Valid, 5521 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-11-22 02:25:57,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6355 states. [2022-11-22 02:25:57,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6355 to 6351. [2022-11-22 02:25:57,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6351 states, 3275 states have (on average 1.2299236641221374) internal successors, (4028), 3365 states have internal predecessors, (4028), 2683 states have call successors, (2683), 393 states have call predecessors, (2683), 392 states have return successors, (2700), 2636 states have call predecessors, (2700), 2683 states have call successors, (2700) [2022-11-22 02:25:57,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6351 states to 6351 states and 9411 transitions. [2022-11-22 02:25:57,749 INFO L78 Accepts]: Start accepts. Automaton has 6351 states and 9411 transitions. Word has length 225 [2022-11-22 02:25:57,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:57,752 INFO L495 AbstractCegarLoop]: Abstraction has 6351 states and 9411 transitions. [2022-11-22 02:25:57,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-22 02:25:57,753 INFO L276 IsEmpty]: Start isEmpty. Operand 6351 states and 9411 transitions. [2022-11-22 02:25:57,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-11-22 02:25:57,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:57,820 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 11, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:25:57,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:25:57,824 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:25:57,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:57,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1344316217, now seen corresponding path program 1 times [2022-11-22 02:25:57,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:57,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575030206] [2022-11-22 02:25:57,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:57,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:58,647 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2022-11-22 02:25:58,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:58,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575030206] [2022-11-22 02:25:58,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575030206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:58,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:58,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:25:58,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035228717] [2022-11-22 02:25:58,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:58,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:25:58,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:58,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:25:58,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:25:58,650 INFO L87 Difference]: Start difference. First operand 6351 states and 9411 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-22 02:26:00,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:01,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:05,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:26:05,337 INFO L93 Difference]: Finished difference Result 14682 states and 21752 transitions. [2022-11-22 02:26:05,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:26:05,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 287 [2022-11-22 02:26:05,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:26:05,406 INFO L225 Difference]: With dead ends: 14682 [2022-11-22 02:26:05,406 INFO L226 Difference]: Without dead ends: 8342 [2022-11-22 02:26:05,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:26:05,453 INFO L413 NwaCegarLoop]: 3578 mSDtfsCounter, 2013 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2013 SdHoareTripleChecker+Valid, 5305 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:26:05,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2013 Valid, 5305 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-22 02:26:05,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8342 states. [2022-11-22 02:26:06,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8342 to 8338. [2022-11-22 02:26:06,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8338 states, 4298 states have (on average 1.2291763610981852) internal successors, (5283), 4415 states have internal predecessors, (5283), 3514 states have call successors, (3514), 527 states have call predecessors, (3514), 525 states have return successors, (3531), 3453 states have call predecessors, (3531), 3514 states have call successors, (3531) [2022-11-22 02:26:06,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8338 states to 8338 states and 12328 transitions. [2022-11-22 02:26:06,101 INFO L78 Accepts]: Start accepts. Automaton has 8338 states and 12328 transitions. Word has length 287 [2022-11-22 02:26:06,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:26:06,104 INFO L495 AbstractCegarLoop]: Abstraction has 8338 states and 12328 transitions. [2022-11-22 02:26:06,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-22 02:26:06,104 INFO L276 IsEmpty]: Start isEmpty. Operand 8338 states and 12328 transitions. [2022-11-22 02:26:06,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-11-22 02:26:06,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:26:06,132 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 11, 8, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:26:06,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:26:06,133 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:26:06,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:26:06,134 INFO L85 PathProgramCache]: Analyzing trace with hash 479222024, now seen corresponding path program 1 times [2022-11-22 02:26:06,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:26:06,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557376054] [2022-11-22 02:26:06,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:26:06,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:26:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:26:06,965 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2022-11-22 02:26:06,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:26:06,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557376054] [2022-11-22 02:26:06,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557376054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:26:06,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:26:06,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:26:06,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762732807] [2022-11-22 02:26:06,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:26:06,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:26:06,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:26:06,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:26:06,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:26:06,968 INFO L87 Difference]: Start difference. First operand 8338 states and 12328 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-22 02:26:09,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:13,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:26:13,713 INFO L93 Difference]: Finished difference Result 24619 states and 36411 transitions. [2022-11-22 02:26:13,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:26:13,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 314 [2022-11-22 02:26:13,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:26:13,821 INFO L225 Difference]: With dead ends: 24619 [2022-11-22 02:26:13,821 INFO L226 Difference]: Without dead ends: 16292 [2022-11-22 02:26:13,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:26:13,868 INFO L413 NwaCegarLoop]: 2640 mSDtfsCounter, 1992 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 4687 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:26:13,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1992 Valid, 4687 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-22 02:26:13,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16292 states. [2022-11-22 02:26:15,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16292 to 16290. [2022-11-22 02:26:15,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16290 states, 8398 states have (on average 1.2305310788282924) internal successors, (10334), 8621 states have internal predecessors, (10334), 6859 states have call successors, (6859), 1035 states have call predecessors, (6859), 1032 states have return successors, (6895), 6743 states have call predecessors, (6895), 6859 states have call successors, (6895) [2022-11-22 02:26:15,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16290 states to 16290 states and 24088 transitions. [2022-11-22 02:26:15,267 INFO L78 Accepts]: Start accepts. Automaton has 16290 states and 24088 transitions. Word has length 314 [2022-11-22 02:26:15,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:26:15,268 INFO L495 AbstractCegarLoop]: Abstraction has 16290 states and 24088 transitions. [2022-11-22 02:26:15,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-22 02:26:15,269 INFO L276 IsEmpty]: Start isEmpty. Operand 16290 states and 24088 transitions. [2022-11-22 02:26:15,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-11-22 02:26:15,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:26:15,300 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 11, 8, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:26:15,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:26:15,300 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:26:15,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:26:15,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1807927802, now seen corresponding path program 1 times [2022-11-22 02:26:15,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:26:15,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081623418] [2022-11-22 02:26:15,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:26:15,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:26:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:26:17,157 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2022-11-22 02:26:17,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:26:17,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081623418] [2022-11-22 02:26:17,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081623418] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:26:17,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427121885] [2022-11-22 02:26:17,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:26:17,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:26:17,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:26:17,166 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:26:17,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:26:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:26:18,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 4486 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-22 02:26:18,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:26:36,686 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2022-11-22 02:26:36,686 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:26:36,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427121885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:26:36,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:26:36,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-11-22 02:26:36,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838221033] [2022-11-22 02:26:36,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:26:36,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:26:36,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:26:36,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:26:36,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:26:36,689 INFO L87 Difference]: Start difference. First operand 16290 states and 24088 transitions. Second operand has 6 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 1 states have call successors, (48) [2022-11-22 02:26:39,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:41,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:42,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:44,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:45,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:51,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:55,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:26:55,166 INFO L93 Difference]: Finished difference Result 28635 states and 42369 transitions. [2022-11-22 02:26:55,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:26:55,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 1 states have call successors, (48) Word has length 318 [2022-11-22 02:26:55,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:26:55,350 INFO L225 Difference]: With dead ends: 28635 [2022-11-22 02:26:55,350 INFO L226 Difference]: Without dead ends: 28633 [2022-11-22 02:26:55,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:26:55,367 INFO L413 NwaCegarLoop]: 3064 mSDtfsCounter, 1502 mSDsluCounter, 8759 mSDsCounter, 0 mSdLazyCounter, 2031 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 11823 SdHoareTripleChecker+Invalid, 2031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:26:55,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 11823 Invalid, 2031 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2031 Invalid, 0 Unknown, 0 Unchecked, 16.6s Time] [2022-11-22 02:26:55,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28633 states. [2022-11-22 02:26:57,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28633 to 28613. [2022-11-22 02:26:57,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28613 states, 14706 states have (on average 1.2301101591187271) internal successors, (18090), 15144 states have internal predecessors, (18090), 12092 states have call successors, (12092), 1836 states have call predecessors, (12092), 1814 states have return successors, (12164), 11820 states have call predecessors, (12164), 12092 states have call successors, (12164) [2022-11-22 02:26:58,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28613 states to 28613 states and 42346 transitions. [2022-11-22 02:26:58,209 INFO L78 Accepts]: Start accepts. Automaton has 28613 states and 42346 transitions. Word has length 318 [2022-11-22 02:26:58,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:26:58,210 INFO L495 AbstractCegarLoop]: Abstraction has 28613 states and 42346 transitions. [2022-11-22 02:26:58,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 1 states have call successors, (48) [2022-11-22 02:26:58,211 INFO L276 IsEmpty]: Start isEmpty. Operand 28613 states and 42346 transitions. [2022-11-22 02:26:58,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-11-22 02:26:58,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:26:58,263 INFO L195 NwaCegarLoop]: trace histogram [15, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:26:58,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:26:58,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a29a1bb-f8af-43e4-9832-aa257aaafbf1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:26:58,477 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:26:58,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:26:58,478 INFO L85 PathProgramCache]: Analyzing trace with hash -930513183, now seen corresponding path program 1 times [2022-11-22 02:26:58,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:26:58,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284167252] [2022-11-22 02:26:58,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:26:58,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:26:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:26:59,071 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-11-22 02:26:59,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:26:59,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284167252] [2022-11-22 02:26:59,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284167252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:26:59,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:26:59,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:26:59,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395492619] [2022-11-22 02:26:59,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:26:59,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:26:59,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:26:59,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:26:59,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:26:59,075 INFO L87 Difference]: Start difference. First operand 28613 states and 42346 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-22 02:27:01,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:04,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:05,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:09,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:27:09,541 INFO L93 Difference]: Finished difference Result 63529 states and 94127 transitions. [2022-11-22 02:27:09,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:27:09,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 329 [2022-11-22 02:27:09,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:27:09,742 INFO L225 Difference]: With dead ends: 63529 [2022-11-22 02:27:09,742 INFO L226 Difference]: Without dead ends: 34927 [2022-11-22 02:27:09,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:27:09,868 INFO L413 NwaCegarLoop]: 3508 mSDtfsCounter, 1590 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 5530 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:27:09,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 5530 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-11-22 02:27:09,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34927 states. [2022-11-22 02:27:12,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34927 to 34917. [2022-11-22 02:27:12,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34917 states, 17940 states have (on average 1.2305462653288741) internal successors, (22076), 18464 states have internal predecessors, (22076), 14768 states have call successors, (14768), 2234 states have call predecessors, (14768), 2208 states have return successors, (14840), 14446 states have call predecessors, (14840), 14768 states have call successors, (14840) [2022-11-22 02:27:13,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34917 states to 34917 states and 51684 transitions. [2022-11-22 02:27:13,180 INFO L78 Accepts]: Start accepts. Automaton has 34917 states and 51684 transitions. Word has length 329 [2022-11-22 02:27:13,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:27:13,180 INFO L495 AbstractCegarLoop]: Abstraction has 34917 states and 51684 transitions. [2022-11-22 02:27:13,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-22 02:27:13,181 INFO L276 IsEmpty]: Start isEmpty. Operand 34917 states and 51684 transitions. [2022-11-22 02:27:13,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-11-22 02:27:13,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:27:13,235 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:27:13,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:27:13,235 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:27:13,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:27:13,236 INFO L85 PathProgramCache]: Analyzing trace with hash -225967561, now seen corresponding path program 1 times [2022-11-22 02:27:13,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:27:13,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637254031] [2022-11-22 02:27:13,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:27:13,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:27:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:27:13,730 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-22 02:27:13,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:27:13,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637254031] [2022-11-22 02:27:13,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637254031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:27:13,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:27:13,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:27:13,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710366732] [2022-11-22 02:27:13,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:27:13,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:27:13,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:27:13,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:27:13,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:27:13,733 INFO L87 Difference]: Start difference. First operand 34917 states and 51684 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-22 02:27:16,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:17,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:22,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:24,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:27:24,013 INFO L93 Difference]: Finished difference Result 69608 states and 102448 transitions. [2022-11-22 02:27:24,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:27:24,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 368 [2022-11-22 02:27:24,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:27:24,161 INFO L225 Difference]: With dead ends: 69608 [2022-11-22 02:27:24,161 INFO L226 Difference]: Without dead ends: 34702 [2022-11-22 02:27:24,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:27:24,279 INFO L413 NwaCegarLoop]: 2652 mSDtfsCounter, 1990 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1997 SdHoareTripleChecker+Valid, 4680 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:27:24,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1997 Valid, 4680 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 409 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-11-22 02:27:24,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34702 states. [2022-11-22 02:27:27,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34702 to 34681. [2022-11-22 02:27:27,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34681 states, 18442 states have (on average 1.2229693091855547) internal successors, (22554), 18996 states have internal predecessors, (22554), 13934 states have call successors, (13934), 2342 states have call predecessors, (13934), 2304 states have return successors, (14072), 13556 states have call predecessors, (14072), 13934 states have call successors, (14072) [2022-11-22 02:27:27,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34681 states to 34681 states and 50560 transitions. [2022-11-22 02:27:27,351 INFO L78 Accepts]: Start accepts. Automaton has 34681 states and 50560 transitions. Word has length 368 [2022-11-22 02:27:27,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:27:27,352 INFO L495 AbstractCegarLoop]: Abstraction has 34681 states and 50560 transitions. [2022-11-22 02:27:27,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-22 02:27:27,352 INFO L276 IsEmpty]: Start isEmpty. Operand 34681 states and 50560 transitions. [2022-11-22 02:27:27,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-11-22 02:27:27,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:27:27,364 INFO L195 NwaCegarLoop]: trace histogram [17, 14, 14, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-22 02:27:27,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:27:27,364 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:27:27,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:27:27,365 INFO L85 PathProgramCache]: Analyzing trace with hash -235637361, now seen corresponding path program 1 times [2022-11-22 02:27:27,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:27:27,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775719231] [2022-11-22 02:27:27,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:27:27,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:27:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:27:27,862 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2022-11-22 02:27:27,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:27:27,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775719231] [2022-11-22 02:27:27,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775719231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:27:27,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:27:27,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:27:27,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874792914] [2022-11-22 02:27:27,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:27:27,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:27:27,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:27:27,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:27:27,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:27:27,866 INFO L87 Difference]: Start difference. First operand 34681 states and 50560 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 02:27:29,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:31,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:32,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:43,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:27:43,262 INFO L93 Difference]: Finished difference Result 75859 states and 110546 transitions. [2022-11-22 02:27:43,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:27:43,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) Word has length 365 [2022-11-22 02:27:43,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:27:43,426 INFO L225 Difference]: With dead ends: 75859 [2022-11-22 02:27:43,426 INFO L226 Difference]: Without dead ends: 41207 [2022-11-22 02:27:43,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:27:43,532 INFO L413 NwaCegarLoop]: 3574 mSDtfsCounter, 1696 mSDsluCounter, 9166 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 12740 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:27:43,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1696 Valid, 12740 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2022-11-22 02:27:43,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41207 states. [2022-11-22 02:27:46,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41207 to 41169. [2022-11-22 02:27:46,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41169 states, 21852 states have (on average 1.2245103423027641) internal successors, (26758), 22587 states have internal predecessors, (26758), 16511 states have call successors, (16511), 2845 states have call predecessors, (16511), 2805 states have return successors, (16667), 16010 states have call predecessors, (16667), 16511 states have call successors, (16667) [2022-11-22 02:27:46,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41169 states to 41169 states and 59936 transitions. [2022-11-22 02:27:46,515 INFO L78 Accepts]: Start accepts. Automaton has 41169 states and 59936 transitions. Word has length 365 [2022-11-22 02:27:46,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:27:46,516 INFO L495 AbstractCegarLoop]: Abstraction has 41169 states and 59936 transitions. [2022-11-22 02:27:46,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 02:27:46,516 INFO L276 IsEmpty]: Start isEmpty. Operand 41169 states and 59936 transitions. [2022-11-22 02:27:46,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2022-11-22 02:27:46,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:27:46,529 INFO L195 NwaCegarLoop]: trace histogram [17, 14, 14, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-22 02:27:46,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 02:27:46,529 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:27:46,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:27:46,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1894431984, now seen corresponding path program 1 times [2022-11-22 02:27:46,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:27:46,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481985662] [2022-11-22 02:27:46,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:27:46,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:27:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:27:47,263 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2022-11-22 02:27:47,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:27:47,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481985662] [2022-11-22 02:27:47,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481985662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:27:47,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:27:47,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:27:47,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129392576] [2022-11-22 02:27:47,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:27:47,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:27:47,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:27:47,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:27:47,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:27:47,267 INFO L87 Difference]: Start difference. First operand 41169 states and 59936 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 02:27:50,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:53,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:54,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:55,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:58,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:05,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:28:05,402 INFO L93 Difference]: Finished difference Result 87783 states and 127882 transitions. [2022-11-22 02:28:05,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:28:05,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) Word has length 367 [2022-11-22 02:28:05,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:28:05,608 INFO L225 Difference]: With dead ends: 87783 [2022-11-22 02:28:05,608 INFO L226 Difference]: Without dead ends: 46643 [2022-11-22 02:28:05,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:28:05,900 INFO L413 NwaCegarLoop]: 3514 mSDtfsCounter, 1574 mSDsluCounter, 9050 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 12564 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:28:05,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 12564 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1212 Invalid, 1 Unknown, 0 Unchecked, 15.3s Time] [2022-11-22 02:28:05,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46643 states. [2022-11-22 02:28:08,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46643 to 46605. [2022-11-22 02:28:08,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46605 states, 24718 states have (on average 1.2237236022331903) internal successors, (30248), 25528 states have internal predecessors, (30248), 18710 states have call successors, (18710), 3208 states have call predecessors, (18710), 3176 states have return successors, (18878), 18174 states have call predecessors, (18878), 18710 states have call successors, (18878) [2022-11-22 02:28:08,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46605 states to 46605 states and 67836 transitions. [2022-11-22 02:28:08,724 INFO L78 Accepts]: Start accepts. Automaton has 46605 states and 67836 transitions. Word has length 367 [2022-11-22 02:28:08,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:28:08,725 INFO L495 AbstractCegarLoop]: Abstraction has 46605 states and 67836 transitions. [2022-11-22 02:28:08,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 02:28:08,725 INFO L276 IsEmpty]: Start isEmpty. Operand 46605 states and 67836 transitions. [2022-11-22 02:28:08,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2022-11-22 02:28:08,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:28:08,954 INFO L195 NwaCegarLoop]: trace histogram [17, 14, 14, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-22 02:28:08,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 02:28:08,955 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:28:08,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:28:08,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1658880514, now seen corresponding path program 1 times [2022-11-22 02:28:08,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:28:08,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647351114] [2022-11-22 02:28:08,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:28:08,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:28:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:28:09,476 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2022-11-22 02:28:09,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:28:09,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647351114] [2022-11-22 02:28:09,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647351114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:28:09,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:28:09,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:28:09,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311279202] [2022-11-22 02:28:09,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:28:09,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:28:09,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:28:09,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:28:09,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:28:09,480 INFO L87 Difference]: Start difference. First operand 46605 states and 67836 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 02:28:12,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:15,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:18,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:26,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:28:26,411 INFO L93 Difference]: Finished difference Result 98571 states and 143634 transitions. [2022-11-22 02:28:26,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:28:26,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) Word has length 367 [2022-11-22 02:28:26,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:28:26,655 INFO L225 Difference]: With dead ends: 98571 [2022-11-22 02:28:26,656 INFO L226 Difference]: Without dead ends: 51995 [2022-11-22 02:28:26,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:28:26,796 INFO L413 NwaCegarLoop]: 3513 mSDtfsCounter, 1564 mSDsluCounter, 9054 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1564 SdHoareTripleChecker+Valid, 12567 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:28:26,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1564 Valid, 12567 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1214 Invalid, 1 Unknown, 0 Unchecked, 14.0s Time] [2022-11-22 02:28:26,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51995 states. [2022-11-22 02:28:30,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51995 to 51957. [2022-11-22 02:28:30,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51957 states, 27548 states have (on average 1.223391897778423) internal successors, (33702), 28433 states have internal predecessors, (33702), 20897 states have call successors, (20897), 3547 states have call predecessors, (20897), 3511 states have return successors, (21065), 20314 states have call predecessors, (21065), 20897 states have call successors, (21065) [2022-11-22 02:28:30,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51957 states to 51957 states and 75664 transitions. [2022-11-22 02:28:30,489 INFO L78 Accepts]: Start accepts. Automaton has 51957 states and 75664 transitions. Word has length 367 [2022-11-22 02:28:30,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:28:30,492 INFO L495 AbstractCegarLoop]: Abstraction has 51957 states and 75664 transitions. [2022-11-22 02:28:30,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 02:28:30,492 INFO L276 IsEmpty]: Start isEmpty. Operand 51957 states and 75664 transitions. [2022-11-22 02:28:30,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2022-11-22 02:28:30,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:28:30,502 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-22 02:28:30,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 02:28:30,502 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:28:30,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:28:30,503 INFO L85 PathProgramCache]: Analyzing trace with hash -986643301, now seen corresponding path program 1 times [2022-11-22 02:28:30,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:28:30,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530803469] [2022-11-22 02:28:30,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:28:30,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:28:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:28:30,806 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2022-11-22 02:28:30,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:28:30,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530803469] [2022-11-22 02:28:30,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530803469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:28:30,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:28:30,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:28:30,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579704729] [2022-11-22 02:28:30,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:28:30,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:28:30,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:28:30,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:28:30,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:28:30,809 INFO L87 Difference]: Start difference. First operand 51957 states and 75664 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 02:28:39,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:28:39,249 INFO L93 Difference]: Finished difference Result 109923 states and 160124 transitions. [2022-11-22 02:28:39,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:28:39,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 379 [2022-11-22 02:28:39,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:28:39,594 INFO L225 Difference]: With dead ends: 109923 [2022-11-22 02:28:39,594 INFO L226 Difference]: Without dead ends: 57995 [2022-11-22 02:28:39,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:28:39,764 INFO L413 NwaCegarLoop]: 3317 mSDtfsCounter, 1692 mSDsluCounter, 2025 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 5342 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:28:39,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 5342 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-22 02:28:39,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57995 states.