./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-wireless-ipw2x00-ipw2100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI --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 211cf819b5d875dce280647ddf0a7b777f89a64546d83ea12f5b7a4f97622e40 --- 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-5e519f3 [2022-11-03 02:24:57,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:24:57,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:24:57,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:24:57,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:24:57,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:24:57,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:24:57,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:24:57,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:24:57,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:24:57,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:24:57,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:24:57,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:24:57,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:24:57,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:24:57,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:24:57,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:24:57,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:24:57,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:24:57,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:24:57,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:24:57,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:24:57,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:24:57,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:24:57,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:24:57,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:24:57,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:24:57,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:24:57,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:24:57,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:24:57,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:24:57,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:24:57,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:24:57,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:24:57,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:24:57,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:24:57,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:24:57,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:24:57,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:24:57,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:24:57,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:24:57,260 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:24:57,293 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:24:57,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:24:57,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:24:57,293 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:24:57,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:24:57,297 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:24:57,298 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:24:57,298 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:24:57,298 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:24:57,298 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:24:57,299 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:24:57,299 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:24:57,300 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:24:57,300 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:24:57,300 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:24:57,300 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:24:57,300 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:24:57,301 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:24:57,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:24:57,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:24:57,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:24:57,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:24:57,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:24:57,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:24:57,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:24:57,304 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:24:57,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:24:57,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:24:57,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:24:57,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:24:57,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:24:57,306 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:24:57,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:24:57,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:24:57,306 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:24:57,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:24:57,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:24:57,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:24:57,308 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_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 211cf819b5d875dce280647ddf0a7b777f89a64546d83ea12f5b7a4f97622e40 [2022-11-03 02:24:57,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:24:57,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:24:57,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:24:57,662 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:24:57,662 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:24:57,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-03 02:24:57,727 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI/data/8374aaee3/ad9afc1960f740a49993697f47cee502/FLAGe275a9868 [2022-11-03 02:24:58,945 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:24:58,947 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-03 02:24:59,050 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI/data/8374aaee3/ad9afc1960f740a49993697f47cee502/FLAGe275a9868 [2022-11-03 02:24:59,107 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI/data/8374aaee3/ad9afc1960f740a49993697f47cee502 [2022-11-03 02:24:59,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:24:59,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:24:59,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:24:59,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:24:59,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:24:59,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:24:59" (1/1) ... [2022-11-03 02:24:59,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a4279c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:59, skipping insertion in model container [2022-11-03 02:24:59,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:24:59" (1/1) ... [2022-11-03 02:24:59,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:24:59,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:25:07,141 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[790222,790235] [2022-11-03 02:25:07,144 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[790367,790380] [2022-11-03 02:25:07,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:25:07,240 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:25:08,137 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[790222,790235] [2022-11-03 02:25:08,138 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[790367,790380] [2022-11-03 02:25:08,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:25:08,606 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:25:08,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:08 WrapperNode [2022-11-03 02:25:08,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:25:08,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:25:08,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:25:08,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:25:08,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:08" (1/1) ... [2022-11-03 02:25:08,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:08" (1/1) ... [2022-11-03 02:25:09,234 INFO L138 Inliner]: procedures = 735, calls = 11820, calls flagged for inlining = 331, calls inlined = 253, statements flattened = 13143 [2022-11-03 02:25:09,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:25:09,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:25:09,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:25:09,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:25:09,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:08" (1/1) ... [2022-11-03 02:25:09,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:08" (1/1) ... [2022-11-03 02:25:09,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:08" (1/1) ... [2022-11-03 02:25:09,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:08" (1/1) ... [2022-11-03 02:25:09,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:08" (1/1) ... [2022-11-03 02:25:09,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:08" (1/1) ... [2022-11-03 02:25:09,905 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:08" (1/1) ... [2022-11-03 02:25:09,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:08" (1/1) ... [2022-11-03 02:25:10,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:25:10,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:25:10,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:25:10,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:25:10,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:08" (1/1) ... [2022-11-03 02:25:10,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:25:10,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:25:10,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:25:10,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:25:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 02:25:10,237 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 02:25:10,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:25:10,238 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:25:10,238 INFO L130 BoogieDeclarations]: Found specification of procedure read_register [2022-11-03 02:25:10,238 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register [2022-11-03 02:25:10,238 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_data [2022-11-03 02:25:10,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_data [2022-11-03 02:25:10,238 INFO L130 BoogieDeclarations]: Found specification of procedure write_register_byte [2022-11-03 02:25:10,239 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register_byte [2022-11-03 02:25:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:25:10,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:25:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 02:25:10,239 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 02:25:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-11-03 02:25:10,239 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-11-03 02:25:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_release_firmware [2022-11-03 02:25:10,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_release_firmware [2022-11-03 02:25:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_configure_security [2022-11-03 02:25:10,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_configure_security [2022-11-03 02:25:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 02:25:10,240 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 02:25:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-03 02:25:10,240 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-03 02:25:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_adapter [2022-11-03 02:25:10,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_adapter [2022-11-03 02:25:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_security_information [2022-11-03 02:25:10,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_security_information [2022-11-03 02:25:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-03 02:25:10,241 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-03 02:25:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 02:25:10,241 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 02:25:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:25:10,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:25:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 02:25:10,242 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 02:25:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 02:25:10,242 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 02:25:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mandatory_bssid [2022-11-03 02:25:10,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mandatory_bssid [2022-11-03 02:25:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:25:10,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:25:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_rfkill_set_hw_state [2022-11-03 02:25:10,243 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_rfkill_set_hw_state [2022-11-03 02:25:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_unregister [2022-11-03 02:25:10,243 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_unregister [2022-11-03 02:25:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_adapter [2022-11-03 02:25:10,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_adapter [2022-11-03 02:25:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 02:25:10,243 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 02:25:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:25:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_send_command [2022-11-03 02:25:10,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_send_command [2022-11-03 02:25:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 02:25:10,244 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 02:25:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_word [2022-11-03 02:25:10,244 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_word [2022-11-03 02:25:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:25:10,244 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:25:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure isr_scan_complete [2022-11-03 02:25:10,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_scan_complete [2022-11-03 02:25:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_power_mode [2022-11-03 02:25:10,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_power_mode [2022-11-03 02:25:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 02:25:10,245 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 02:25:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_115 [2022-11-03 02:25:10,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_115 [2022-11-03 02:25:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_byte [2022-11-03 02:25:10,245 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_byte [2022-11-03 02:25:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2022-11-03 02:25:10,246 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2022-11-03 02:25:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:25:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:25:10,246 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:25:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-03 02:25:10,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-03 02:25:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:25:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_dword [2022-11-03 02:25:10,246 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_dword [2022-11-03 02:25:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:25:10,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:25:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_channel [2022-11-03 02:25:10,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_channel [2022-11-03 02:25:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:25:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 02:25:10,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 02:25:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-03 02:25:10,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-03 02:25:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_up [2022-11-03 02:25:10,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_up [2022-11-03 02:25:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_commands [2022-11-03 02:25:10,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_commands [2022-11-03 02:25:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:25:10,248 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:25:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 02:25:10,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 02:25:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 02:25:10,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 02:25:10,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:25:10,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:25:10,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 02:25:10,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 02:25:10,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipw2100_exit_18_2 [2022-11-03 02:25:10,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipw2100_exit_18_2 [2022-11-03 02:25:10,249 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 02:25:10,249 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 02:25:10,250 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 02:25:10,250 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 02:25:10,250 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_adapter [2022-11-03 02:25:10,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_adapter [2022-11-03 02:25:10,250 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 02:25:10,250 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 02:25:10,250 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_scan_options [2022-11-03 02:25:10,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_scan_options [2022-11-03 02:25:10,250 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_txb_free [2022-11-03 02:25:10,251 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_txb_free [2022-11-03 02:25:10,251 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_fatalerror [2022-11-03 02:25:10,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_fatalerror [2022-11-03 02:25:10,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:25:10,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 02:25:10,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 02:25:10,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 02:25:10,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 02:25:10,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-03 02:25:10,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-11-03 02:25:10,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:25:10,252 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_rates [2022-11-03 02:25:10,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_rates [2022-11-03 02:25:10,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:25:10,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:25:10,252 INFO L130 BoogieDeclarations]: Found specification of procedure print_ssid [2022-11-03 02:25:10,252 INFO L138 BoogieDeclarations]: Found implementation of procedure print_ssid [2022-11-03 02:25:10,252 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:25:10,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:25:10,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:25:10,252 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-03 02:25:10,253 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-03 02:25:10,253 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:25:10,253 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_snapshot_free [2022-11-03 02:25:10,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_snapshot_free [2022-11-03 02:25:10,253 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:25:10,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:25:10,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-03 02:25:10,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-03 02:25:10,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-03 02:25:10,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-03 02:25:10,254 INFO L130 BoogieDeclarations]: Found specification of procedure snprint_line [2022-11-03 02:25:10,254 INFO L138 BoogieDeclarations]: Found implementation of procedure snprint_line [2022-11-03 02:25:10,254 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 02:25:10,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 02:25:10,254 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_reset [2022-11-03 02:25:10,254 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_reset [2022-11-03 02:25:10,254 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-03 02:25:10,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-03 02:25:10,254 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 02:25:10,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 02:25:10,255 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:25:10,255 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:25:10,255 INFO L130 BoogieDeclarations]: Found specification of procedure sw_reset_and_clock [2022-11-03 02:25:10,255 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_reset_and_clock [2022-11-03 02:25:10,255 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_interrupts [2022-11-03 02:25:10,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_interrupts [2022-11-03 02:25:10,255 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-03 02:25:10,255 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-03 02:25:10,256 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_resume [2022-11-03 02:25:10,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_resume [2022-11-03 02:25:10,256 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-11-03 02:25:10,256 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-11-03 02:25:10,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:25:10,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:25:10,256 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2022-11-03 02:25:10,256 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2022-11-03 02:25:10,256 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_pci_remove_one [2022-11-03 02:25:10,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_pci_remove_one [2022-11-03 02:25:10,257 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_free [2022-11-03 02:25:10,257 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_free [2022-11-03 02:25:10,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-03 02:25:10,257 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-03 02:25:10,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:25:10,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:25:10,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:25:10,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:25:10,258 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_alloc_skb [2022-11-03 02:25:10,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_alloc_skb [2022-11-03 02:25:10,258 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-03 02:25:10,258 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-03 02:25:10,258 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_get_ordinal [2022-11-03 02:25:10,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_get_ordinal [2022-11-03 02:25:10,258 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_stop_adapter [2022-11-03 02:25:10,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_stop_adapter [2022-11-03 02:25:10,259 INFO L130 BoogieDeclarations]: Found specification of procedure write_register [2022-11-03 02:25:10,259 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register [2022-11-03 02:25:10,259 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_set_gpio [2022-11-03 02:25:10,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_set_gpio [2022-11-03 02:25:10,259 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 02:25:10,259 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 02:25:10,259 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_down [2022-11-03 02:25:10,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_down [2022-11-03 02:25:10,259 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_close [2022-11-03 02:25:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_close [2022-11-03 02:25:10,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_low_lock_of_ipw2100_priv [2022-11-03 02:25:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_low_lock_of_ipw2100_priv [2022-11-03 02:25:10,260 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_wait_for_card_state [2022-11-03 02:25:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_wait_for_card_state [2022-11-03 02:25:10,260 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_rf_kill [2022-11-03 02:25:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_rf_kill [2022-11-03 02:25:10,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 02:25:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 02:25:10,261 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:25:10,261 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:25:10,261 INFO L130 BoogieDeclarations]: Found specification of procedure read_register_byte [2022-11-03 02:25:10,261 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register_byte [2022-11-03 02:25:10,261 INFO L130 BoogieDeclarations]: Found specification of procedure status_queue_free [2022-11-03 02:25:10,261 INFO L138 BoogieDeclarations]: Found implementation of procedure status_queue_free [2022-11-03 02:25:10,261 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 02:25:10,261 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 02:25:10,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:25:10,262 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:25:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-03 02:25:10,262 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-03 02:25:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 02:25:10,262 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 02:25:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_rx_free [2022-11-03 02:25:10,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_rx_free [2022-11-03 02:25:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-03 02:25:10,262 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-03 02:25:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-03 02:25:10,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-03 02:25:10,263 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 02:25:10,263 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 02:25:10,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:25:10,263 INFO L130 BoogieDeclarations]: Found specification of procedure mod_delayed_work [2022-11-03 02:25:10,263 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_delayed_work [2022-11-03 02:25:10,263 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:25:10,264 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:25:10,264 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_shutdown [2022-11-03 02:25:10,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_shutdown [2022-11-03 02:25:10,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:25:10,264 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_word [2022-11-03 02:25:10,264 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_word [2022-11-03 02:25:10,264 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_association_lost [2022-11-03 02:25:10,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_association_lost [2022-11-03 02:25:10,265 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_free [2022-11-03 02:25:10,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_free [2022-11-03 02:25:10,265 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mac_address [2022-11-03 02:25:10,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mac_address [2022-11-03 02:25:10,265 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_essid [2022-11-03 02:25:10,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_essid [2022-11-03 02:25:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_102 [2022-11-03 02:25:10,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_102 [2022-11-03 02:25:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-03 02:25:10,266 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-03 02:25:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:25:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_interrupts [2022-11-03 02:25:10,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_interrupts [2022-11-03 02:25:10,267 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-03 02:25:10,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-03 02:25:10,267 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_rts_threshold [2022-11-03 02:25:10,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_rts_threshold [2022-11-03 02:25:10,267 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_byte [2022-11-03 02:25:10,267 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_byte [2022-11-03 02:25:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 02:25:10,268 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 02:25:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 02:25:10,268 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 02:25:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure free_libipw [2022-11-03 02:25:10,268 INFO L138 BoogieDeclarations]: Found implementation of procedure free_libipw [2022-11-03 02:25:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:25:10,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:25:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 02:25:10,269 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 02:25:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 02:25:10,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 02:25:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_msg_free [2022-11-03 02:25:10,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_msg_free [2022-11-03 02:25:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure printk_buf [2022-11-03 02:25:10,270 INFO L138 BoogieDeclarations]: Found implementation of procedure printk_buf [2022-11-03 02:25:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure ipw_ethtool_get_drvinfo [2022-11-03 02:25:10,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw_ethtool_get_drvinfo [2022-11-03 02:25:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-03 02:25:10,270 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-03 02:25:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_power [2022-11-03 02:25:10,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_power [2022-11-03 02:25:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 02:25:10,271 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 02:25:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 02:25:10,271 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 02:25:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-03 02:25:10,271 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-03 02:25:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_system_config [2022-11-03 02:25:10,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_system_config [2022-11-03 02:25:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_kill_works [2022-11-03 02:25:10,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_kill_works [2022-11-03 02:25:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2022-11-03 02:25:10,272 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2022-11-03 02:25:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:25:10,273 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:25:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:25:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_free [2022-11-03 02:25:10,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_free [2022-11-03 02:25:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:25:10,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:25:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure rf_kill_active [2022-11-03 02:25:10,274 INFO L138 BoogieDeclarations]: Found implementation of procedure rf_kill_active [2022-11-03 02:25:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure get_seconds [2022-11-03 02:25:10,274 INFO L138 BoogieDeclarations]: Found implementation of procedure get_seconds [2022-11-03 02:25:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 02:25:10,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 02:25:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_allocate [2022-11-03 02:25:10,274 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_allocate [2022-11-03 02:25:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 02:25:10,275 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 02:25:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_priv [2022-11-03 02:25:10,275 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_priv [2022-11-03 02:25:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 02:25:10,275 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 02:25:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 02:25:10,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 02:25:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_timeout [2022-11-03 02:25:10,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_timeout [2022-11-03 02:25:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:25:10,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:25:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 02:25:10,276 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 02:25:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-03 02:25:10,277 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-03 02:25:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 02:25:10,277 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 02:25:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-03 02:25:10,277 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-03 02:25:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_open [2022-11-03 02:25:10,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_open [2022-11-03 02:25:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 02:25:10,278 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 02:25:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_initialize [2022-11-03 02:25:10,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_initialize [2022-11-03 02:25:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-03 02:25:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_low_lock_of_ipw2100_priv [2022-11-03 02:25:10,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_low_lock_of_ipw2100_priv [2022-11-03 02:25:10,279 INFO L130 BoogieDeclarations]: Found specification of procedure pm_qos_update_request [2022-11-03 02:25:10,279 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_qos_update_request [2022-11-03 02:25:10,279 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_associated [2022-11-03 02:25:10,279 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_associated [2022-11-03 02:25:10,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:25:10,279 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_scanning [2022-11-03 02:25:10,279 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_scanning [2022-11-03 02:25:10,280 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_dword [2022-11-03 02:25:10,280 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_dword [2022-11-03 02:25:10,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:25:10,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:25:10,280 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-03 02:25:10,280 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-03 02:25:10,280 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_initialize [2022-11-03 02:25:10,281 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_initialize [2022-11-03 02:25:10,281 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_start_scan [2022-11-03 02:25:10,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_start_scan [2022-11-03 02:25:10,281 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-03 02:25:10,281 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-03 02:25:11,555 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:25:11,560 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:25:23,691 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:27:47,521 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:27:47,689 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:27:53,619 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:27:53,619 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 02:27:53,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:27:53 BoogieIcfgContainer [2022-11-03 02:27:53,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:27:53,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:27:53,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:27:53,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:27:53,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:24:59" (1/3) ... [2022-11-03 02:27:53,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41453ad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:27:53, skipping insertion in model container [2022-11-03 02:27:53,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:08" (2/3) ... [2022-11-03 02:27:53,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41453ad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:27:53, skipping insertion in model container [2022-11-03 02:27:53,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:27:53" (3/3) ... [2022-11-03 02:27:53,657 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-03 02:27:53,672 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:27:53,673 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:27:53,770 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:27:53,777 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;@f527442, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:27:53,777 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:27:53,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 2842 states, 1768 states have (on average 1.33710407239819) internal successors, (2364), 1783 states have internal predecessors, (2364), 904 states have call successors, (904), 170 states have call predecessors, (904), 169 states have return successors, (898), 896 states have call predecessors, (898), 898 states have call successors, (898) [2022-11-03 02:27:53,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-03 02:27:53,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:27:53,846 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:27:53,847 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:27:53,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:27:53,852 INFO L85 PathProgramCache]: Analyzing trace with hash -877242207, now seen corresponding path program 1 times [2022-11-03 02:27:53,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:27:53,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288857052] [2022-11-03 02:27:53,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:27:53,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:27:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:27:56,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2022-11-03 02:27:56,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:27:56,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288857052] [2022-11-03 02:27:56,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288857052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:27:56,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:27:56,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:27:56,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553392626] [2022-11-03 02:27:56,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:27:56,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:27:56,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:27:56,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:27:56,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:27:56,901 INFO L87 Difference]: Start difference. First operand has 2842 states, 1768 states have (on average 1.33710407239819) internal successors, (2364), 1783 states have internal predecessors, (2364), 904 states have call successors, (904), 170 states have call predecessors, (904), 169 states have return successors, (898), 896 states have call predecessors, (898), 898 states have call successors, (898) Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-03 02:28:02,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:28:05,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:28:08,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:10,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:13,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:17,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:22,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:24,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:27,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:29,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:31,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:34,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:34,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:28:34,866 INFO L93 Difference]: Finished difference Result 7226 states and 10628 transitions. [2022-11-03 02:28:34,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:28:34,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 317 [2022-11-03 02:28:34,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:28:34,942 INFO L225 Difference]: With dead ends: 7226 [2022-11-03 02:28:34,943 INFO L226 Difference]: Without dead ends: 4354 [2022-11-03 02:28:34,975 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 [2022-11-03 02:28:34,978 INFO L413 NwaCegarLoop]: 4678 mSDtfsCounter, 2300 mSDsluCounter, 4091 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 18 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2304 SdHoareTripleChecker+Valid, 8287 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:28:34,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2304 Valid, 8287 Invalid, 1146 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 1116 Invalid, 12 Unknown, 0 Unchecked, 37.4s Time] [2022-11-03 02:28:35,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4354 states. [2022-11-03 02:28:35,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4354 to 4348. [2022-11-03 02:28:35,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4348 states, 2761 states have (on average 1.3393697935530604) internal successors, (3698), 2781 states have internal predecessors, (3698), 1324 states have call successors, (1324), 263 states have call predecessors, (1324), 262 states have return successors, (1327), 1318 states have call predecessors, (1327), 1324 states have call successors, (1327) [2022-11-03 02:28:35,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4348 states to 4348 states and 6349 transitions. [2022-11-03 02:28:35,406 INFO L78 Accepts]: Start accepts. Automaton has 4348 states and 6349 transitions. Word has length 317 [2022-11-03 02:28:35,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:28:35,407 INFO L495 AbstractCegarLoop]: Abstraction has 4348 states and 6349 transitions. [2022-11-03 02:28:35,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-03 02:28:35,408 INFO L276 IsEmpty]: Start isEmpty. Operand 4348 states and 6349 transitions. [2022-11-03 02:28:35,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2022-11-03 02:28:35,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:28:35,441 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:28:35,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:28:35,442 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:28:35,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:28:35,443 INFO L85 PathProgramCache]: Analyzing trace with hash -821149438, now seen corresponding path program 1 times [2022-11-03 02:28:35,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:28:35,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029344304] [2022-11-03 02:28:35,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:35,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:28:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:37,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1449 trivial. 0 not checked. [2022-11-03 02:28:37,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:28:37,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029344304] [2022-11-03 02:28:37,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029344304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:28:37,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:28:37,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:28:37,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574334338] [2022-11-03 02:28:37,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:28:37,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:28:37,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:28:37,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:28:37,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:28:37,447 INFO L87 Difference]: Start difference. First operand 4348 states and 6349 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-03 02:28:44,251 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 [] [2022-11-03 02:28:46,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:28:47,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:28:49,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:28:53,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:28:55,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:58,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:00,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:02,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:06,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:10,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:12,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:14,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:17,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:19,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:21,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:22,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:22,271 INFO L93 Difference]: Finished difference Result 10297 states and 15033 transitions. [2022-11-03 02:29:22,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:29:22,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 370 [2022-11-03 02:29:22,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:22,320 INFO L225 Difference]: With dead ends: 10297 [2022-11-03 02:29:22,321 INFO L226 Difference]: Without dead ends: 5982 [2022-11-03 02:29:22,342 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 [2022-11-03 02:29:22,344 INFO L413 NwaCegarLoop]: 5606 mSDtfsCounter, 2345 mSDsluCounter, 4027 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 15 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2348 SdHoareTripleChecker+Valid, 9151 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:22,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2348 Valid, 9151 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1365 Invalid, 11 Unknown, 0 Unchecked, 44.5s Time] [2022-11-03 02:29:22,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5982 states. [2022-11-03 02:29:22,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5982 to 5980. [2022-11-03 02:29:22,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5980 states, 3814 states have (on average 1.339276350288411) internal successors, (5108), 3838 states have internal predecessors, (5108), 1802 states have call successors, (1802), 364 states have call predecessors, (1802), 363 states have return successors, (1806), 1795 states have call predecessors, (1806), 1802 states have call successors, (1806) [2022-11-03 02:29:22,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5980 states to 5980 states and 8716 transitions. [2022-11-03 02:29:22,715 INFO L78 Accepts]: Start accepts. Automaton has 5980 states and 8716 transitions. Word has length 370 [2022-11-03 02:29:22,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:22,717 INFO L495 AbstractCegarLoop]: Abstraction has 5980 states and 8716 transitions. [2022-11-03 02:29:22,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-03 02:29:22,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5980 states and 8716 transitions. [2022-11-03 02:29:22,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2022-11-03 02:29:22,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:22,747 INFO L195 NwaCegarLoop]: trace histogram [24, 18, 18, 18, 18, 18, 18, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:22,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:29:22,748 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:22,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:22,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1722959573, now seen corresponding path program 1 times [2022-11-03 02:29:22,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:22,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080709764] [2022-11-03 02:29:22,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:22,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:25,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1680 trivial. 0 not checked. [2022-11-03 02:29:25,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:25,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080709764] [2022-11-03 02:29:25,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080709764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:25,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:25,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:29:25,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774993844] [2022-11-03 02:29:25,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:25,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:29:25,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:25,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:29:25,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:29:25,300 INFO L87 Difference]: Start difference. First operand 5980 states and 8716 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 3 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-03 02:29:33,087 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 [] [2022-11-03 02:29:42,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:44,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:47,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:52,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:59,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:02,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:04,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:06,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:10,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:12,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:13,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:30:13,605 INFO L93 Difference]: Finished difference Result 13106 states and 19287 transitions. [2022-11-03 02:30:13,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:30:13,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 3 states have call predecessors, (52), 2 states have call successors, (52) Word has length 432 [2022-11-03 02:30:13,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:30:13,663 INFO L225 Difference]: With dead ends: 13106 [2022-11-03 02:30:13,663 INFO L226 Difference]: Without dead ends: 7159 [2022-11-03 02:30:13,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:30:13,697 INFO L413 NwaCegarLoop]: 4259 mSDtfsCounter, 559 mSDsluCounter, 13946 mSDsCounter, 0 mSdLazyCounter, 2335 mSolverCounterSat, 2 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 16495 SdHoareTripleChecker+Invalid, 2348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2335 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:30:13,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 16495 Invalid, 2348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2335 Invalid, 11 Unknown, 0 Unchecked, 47.9s Time] [2022-11-03 02:30:13,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7159 states. [2022-11-03 02:30:14,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7159 to 5984. [2022-11-03 02:30:14,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5984 states, 3817 states have (on average 1.3390096934765523) internal successors, (5111), 3841 states have internal predecessors, (5111), 1802 states have call successors, (1802), 364 states have call predecessors, (1802), 364 states have return successors, (1808), 1796 states have call predecessors, (1808), 1802 states have call successors, (1808) [2022-11-03 02:30:14,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5984 states to 5984 states and 8721 transitions. [2022-11-03 02:30:14,098 INFO L78 Accepts]: Start accepts. Automaton has 5984 states and 8721 transitions. Word has length 432 [2022-11-03 02:30:14,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:30:14,100 INFO L495 AbstractCegarLoop]: Abstraction has 5984 states and 8721 transitions. [2022-11-03 02:30:14,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 3 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-03 02:30:14,100 INFO L276 IsEmpty]: Start isEmpty. Operand 5984 states and 8721 transitions. [2022-11-03 02:30:14,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2022-11-03 02:30:14,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:30:14,132 INFO L195 NwaCegarLoop]: trace histogram [24, 18, 18, 18, 18, 18, 18, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:30:14,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:30:14,133 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:30:14,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:30:14,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1345891973, now seen corresponding path program 1 times [2022-11-03 02:30:14,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:30:14,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328018469] [2022-11-03 02:30:14,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:14,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:30:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:19,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 1649 trivial. 0 not checked. [2022-11-03 02:30:19,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:30:19,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328018469] [2022-11-03 02:30:19,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328018469] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:30:19,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475348595] [2022-11-03 02:30:19,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:19,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:30:19,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:30:19,172 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:30:19,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:30:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:23,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 15877 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:30:23,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:31:47,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1683 trivial. 0 not checked. [2022-11-03 02:31:47,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:31:47,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475348595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:31:47,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:31:47,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-11-03 02:31:47,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167278907] [2022-11-03 02:31:47,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:31:47,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:31:47,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:31:47,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:31:47,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:31:47,158 INFO L87 Difference]: Start difference. First operand 5984 states and 8721 transitions. Second operand has 6 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (55), 1 states have call predecessors, (55), 2 states have return successors, (53), 2 states have call predecessors, (53), 1 states have call successors, (53) [2022-11-03 02:31:57,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:31:59,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:03,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:32:06,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:32:13,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:15,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:17,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:18,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:19,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:26,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:29,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:30,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:32,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:38,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:42,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:44,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:47,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:51,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:53,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:57,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:57,019 INFO L93 Difference]: Finished difference Result 8801 states and 12746 transitions. [2022-11-03 02:32:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:32:57,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (55), 1 states have call predecessors, (55), 2 states have return successors, (53), 2 states have call predecessors, (53), 1 states have call successors, (53) Word has length 437 [2022-11-03 02:32:57,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:57,081 INFO L225 Difference]: With dead ends: 8801 [2022-11-03 02:32:57,081 INFO L226 Difference]: Without dead ends: 8799 [2022-11-03 02:32:57,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:32:57,088 INFO L413 NwaCegarLoop]: 4271 mSDtfsCounter, 1908 mSDsluCounter, 14922 mSDsCounter, 0 mSdLazyCounter, 3415 mSolverCounterSat, 1 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1909 SdHoareTripleChecker+Valid, 17283 SdHoareTripleChecker+Invalid, 3428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3415 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:57,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1909 Valid, 17283 Invalid, 3428 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3415 Invalid, 12 Unknown, 0 Unchecked, 68.8s Time] [2022-11-03 02:32:57,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8799 states. [2022-11-03 02:32:57,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8799 to 8793. [2022-11-03 02:32:57,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8793 states, 5621 states have (on average 1.3408646148372176) internal successors, (7537), 5681 states have internal predecessors, (7537), 2591 states have call successors, (2591), 595 states have call predecessors, (2591), 580 states have return successors, (2608), 2548 states have call predecessors, (2608), 2591 states have call successors, (2608) [2022-11-03 02:32:57,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8793 states to 8793 states and 12736 transitions. [2022-11-03 02:32:57,815 INFO L78 Accepts]: Start accepts. Automaton has 8793 states and 12736 transitions. Word has length 437 [2022-11-03 02:32:57,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:57,816 INFO L495 AbstractCegarLoop]: Abstraction has 8793 states and 12736 transitions. [2022-11-03 02:32:57,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (55), 1 states have call predecessors, (55), 2 states have return successors, (53), 2 states have call predecessors, (53), 1 states have call successors, (53) [2022-11-03 02:32:57,817 INFO L276 IsEmpty]: Start isEmpty. Operand 8793 states and 12736 transitions. [2022-11-03 02:32:57,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-03 02:32:57,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:57,861 INFO L195 NwaCegarLoop]: trace histogram [23, 18, 18, 18, 18, 18, 18, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:32:57,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:32:58,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0cf3874-7bb0-4c58-b4ff-b499de1833d6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:58,075 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:32:58,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:58,075 INFO L85 PathProgramCache]: Analyzing trace with hash 364246408, now seen corresponding path program 1 times [2022-11-03 02:32:58,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:58,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993707117] [2022-11-03 02:32:58,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:58,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:59,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1544 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1535 trivial. 0 not checked. [2022-11-03 02:32:59,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:59,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993707117] [2022-11-03 02:32:59,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993707117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:32:59,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:32:59,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:32:59,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049926377] [2022-11-03 02:32:59,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:32:59,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:32:59,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:59,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:32:59,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:32:59,767 INFO L87 Difference]: Start difference. First operand 8793 states and 12736 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-03 02:33:05,122 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 [] [2022-11-03 02:33:07,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:33:09,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:33:13,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:33:16,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:33:20,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:33:24,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:33:27,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:33:29,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:33:31,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:33:34,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:33:37,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:33:37,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:37,734 INFO L93 Difference]: Finished difference Result 25685 states and 37164 transitions. [2022-11-03 02:33:37,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:33:37,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 438 [2022-11-03 02:33:37,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:37,846 INFO L225 Difference]: With dead ends: 25685 [2022-11-03 02:33:37,847 INFO L226 Difference]: Without dead ends: 16925 [2022-11-03 02:33:37,891 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 [2022-11-03 02:33:37,892 INFO L413 NwaCegarLoop]: 4333 mSDtfsCounter, 3331 mSDsluCounter, 4066 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 5 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3336 SdHoareTripleChecker+Valid, 7912 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:33:37,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3336 Valid, 7912 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1009 Invalid, 12 Unknown, 0 Unchecked, 37.0s Time] [2022-11-03 02:33:37,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16925 states. [2022-11-03 02:33:39,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16925 to 16900. [2022-11-03 02:33:39,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16900 states, 10778 states have (on average 1.3382816849137131) internal successors, (14424), 10917 states have internal predecessors, (14424), 4981 states have call successors, (4981), 1170 states have call predecessors, (4981), 1140 states have return successors, (5024), 4876 states have call predecessors, (5024), 4981 states have call successors, (5024) [2022-11-03 02:33:39,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16900 states to 16900 states and 24429 transitions. [2022-11-03 02:33:39,282 INFO L78 Accepts]: Start accepts. Automaton has 16900 states and 24429 transitions. Word has length 438 [2022-11-03 02:33:39,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:39,283 INFO L495 AbstractCegarLoop]: Abstraction has 16900 states and 24429 transitions. [2022-11-03 02:33:39,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-03 02:33:39,284 INFO L276 IsEmpty]: Start isEmpty. Operand 16900 states and 24429 transitions. [2022-11-03 02:33:39,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2022-11-03 02:33:39,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:39,392 INFO L195 NwaCegarLoop]: trace histogram [24, 18, 18, 18, 18, 18, 18, 8, 8, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:33:39,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:33:39,392 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:33:39,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:39,394 INFO L85 PathProgramCache]: Analyzing trace with hash -290069187, now seen corresponding path program 1 times [2022-11-03 02:33:39,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:39,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965902337] [2022-11-03 02:33:39,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:39,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:41,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1631 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 1612 trivial. 0 not checked. [2022-11-03 02:33:41,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:41,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965902337] [2022-11-03 02:33:41,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965902337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:41,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:33:41,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:33:41,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179533491] [2022-11-03 02:33:41,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:41,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:33:41,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:41,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:33:41,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:33:41,007 INFO L87 Difference]: Start difference. First operand 16900 states and 24429 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-03 02:33:45,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:33:48,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:33:50,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:33:53,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:33:56,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:33:59,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:34:00,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:34:02,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:34:03,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:34:07,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:34:11,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:34:13,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:34:16,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:34:19,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:34:21,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:34:23,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:34:24,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:24,372 INFO L93 Difference]: Finished difference Result 36005 states and 51956 transitions. [2022-11-03 02:34:24,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:34:24,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 459 [2022-11-03 02:34:24,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:24,472 INFO L225 Difference]: With dead ends: 36005 [2022-11-03 02:34:24,473 INFO L226 Difference]: Without dead ends: 19138 [2022-11-03 02:34:24,530 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 [2022-11-03 02:34:24,530 INFO L413 NwaCegarLoop]: 4201 mSDtfsCounter, 2197 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 10 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2201 SdHoareTripleChecker+Valid, 7744 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:34:24,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2201 Valid, 7744 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1044 Invalid, 12 Unknown, 0 Unchecked, 42.3s Time] [2022-11-03 02:34:24,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19138 states. [2022-11-03 02:34:25,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19138 to 19131. [2022-11-03 02:34:25,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19131 states, 12229 states have (on average 1.3366587619592771) internal successors, (16346), 12380 states have internal predecessors, (16346), 5579 states have call successors, (5579), 1355 states have call predecessors, (5579), 1322 states have return successors, (5624), 5465 states have call predecessors, (5624), 5579 states have call successors, (5624) [2022-11-03 02:34:26,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19131 states to 19131 states and 27549 transitions. [2022-11-03 02:34:26,027 INFO L78 Accepts]: Start accepts. Automaton has 19131 states and 27549 transitions. Word has length 459 [2022-11-03 02:34:26,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:26,028 INFO L495 AbstractCegarLoop]: Abstraction has 19131 states and 27549 transitions. [2022-11-03 02:34:26,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-03 02:34:26,029 INFO L276 IsEmpty]: Start isEmpty. Operand 19131 states and 27549 transitions. [2022-11-03 02:34:26,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2022-11-03 02:34:26,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:26,103 INFO L195 NwaCegarLoop]: trace histogram [24, 18, 18, 18, 18, 18, 18, 8, 8, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:34:26,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:34:26,103 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:34:26,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:26,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1008189039, now seen corresponding path program 2 times [2022-11-03 02:34:26,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:26,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036113049] [2022-11-03 02:34:26,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:26,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:26,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:27,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1631 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 1612 trivial. 0 not checked. [2022-11-03 02:34:27,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:27,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036113049] [2022-11-03 02:34:27,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036113049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:34:27,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:34:27,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:34:27,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295541902] [2022-11-03 02:34:27,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:34:27,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:34:27,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:27,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:34:27,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:34:27,574 INFO L87 Difference]: Start difference. First operand 19131 states and 27549 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-03 02:34:35,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:34:36,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:34:39,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:34:44,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:34:47,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:34:51,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:34:55,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:34:58,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:35:00,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:35:03,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:35:06,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:35:08,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:35:09,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:35:09,182 INFO L93 Difference]: Finished difference Result 44189 states and 63658 transitions. [2022-11-03 02:35:09,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:35:09,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 459 [2022-11-03 02:35:09,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:35:09,348 INFO L225 Difference]: With dead ends: 44189 [2022-11-03 02:35:09,348 INFO L226 Difference]: Without dead ends: 27246 [2022-11-03 02:35:09,422 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 [2022-11-03 02:35:09,423 INFO L413 NwaCegarLoop]: 6502 mSDtfsCounter, 3341 mSDsluCounter, 4065 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 4 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3346 SdHoareTripleChecker+Valid, 10079 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:35:09,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3346 Valid, 10079 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1440 Invalid, 10 Unknown, 0 Unchecked, 40.2s Time] [2022-11-03 02:35:09,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27246 states. [2022-11-03 02:35:11,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27246 to 27231. [2022-11-03 02:35:11,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27231 states, 17385 states have (on average 1.335806729939603) internal successors, (23223), 17606 states have internal predecessors, (23223), 7949 states have call successors, (7949), 1947 states have call predecessors, (7949), 1896 states have return successors, (8016), 7779 states have call predecessors, (8016), 7949 states have call successors, (8016) [2022-11-03 02:35:11,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27231 states to 27231 states and 39188 transitions. [2022-11-03 02:35:11,607 INFO L78 Accepts]: Start accepts. Automaton has 27231 states and 39188 transitions. Word has length 459 [2022-11-03 02:35:11,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:35:11,608 INFO L495 AbstractCegarLoop]: Abstraction has 27231 states and 39188 transitions. [2022-11-03 02:35:11,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-03 02:35:11,608 INFO L276 IsEmpty]: Start isEmpty. Operand 27231 states and 39188 transitions. [2022-11-03 02:35:11,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2022-11-03 02:35:11,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:35:11,721 INFO L195 NwaCegarLoop]: trace histogram [26, 18, 18, 18, 18, 18, 18, 13, 13, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:35:11,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:35:11,722 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:35:11,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:35:11,722 INFO L85 PathProgramCache]: Analyzing trace with hash 758800414, now seen corresponding path program 1 times [2022-11-03 02:35:11,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:35:11,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979251110] [2022-11-03 02:35:11,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:11,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:35:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:35:13,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 1836 trivial. 0 not checked. [2022-11-03 02:35:13,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:35:13,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979251110] [2022-11-03 02:35:13,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979251110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:35:13,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:35:13,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:35:13,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124450026] [2022-11-03 02:35:13,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:35:13,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:35:13,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:35:13,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:35:13,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:35:13,520 INFO L87 Difference]: Start difference. First operand 27231 states and 39188 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-03 02:35:17,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:35:19,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:35:22,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:35:26,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:35:29,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:35:35,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:35:39,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:35:41,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:35:44,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:35:46,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:35:48,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:35:51,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:35:53,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:35:53,532 INFO L93 Difference]: Finished difference Result 78463 states and 112934 transitions. [2022-11-03 02:35:53,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:35:53,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 487 [2022-11-03 02:35:53,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:35:53,846 INFO L225 Difference]: With dead ends: 78463 [2022-11-03 02:35:53,846 INFO L226 Difference]: Without dead ends: 51265 [2022-11-03 02:35:54,193 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 [2022-11-03 02:35:54,194 INFO L413 NwaCegarLoop]: 4322 mSDtfsCounter, 3356 mSDsluCounter, 4043 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 6 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3359 SdHoareTripleChecker+Valid, 7874 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:35:54,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3359 Valid, 7874 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1002 Invalid, 10 Unknown, 0 Unchecked, 37.2s Time] [2022-11-03 02:35:54,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51265 states. [2022-11-03 02:35:58,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51265 to 51250. [2022-11-03 02:35:58,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51250 states, 32731 states have (on average 1.3350646176407688) internal successors, (43698), 33167 states have internal predecessors, (43698), 14943 states have call successors, (14943), 3683 states have call predecessors, (14943), 3575 states have return successors, (15080), 14597 states have call predecessors, (15080), 14943 states have call successors, (15080) [2022-11-03 02:35:58,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51250 states to 51250 states and 73721 transitions. [2022-11-03 02:35:58,462 INFO L78 Accepts]: Start accepts. Automaton has 51250 states and 73721 transitions. Word has length 487 [2022-11-03 02:35:58,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:35:58,463 INFO L495 AbstractCegarLoop]: Abstraction has 51250 states and 73721 transitions. [2022-11-03 02:35:58,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-03 02:35:58,463 INFO L276 IsEmpty]: Start isEmpty. Operand 51250 states and 73721 transitions. [2022-11-03 02:35:58,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2022-11-03 02:35:58,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:35:58,656 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 13, 13, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:35:58,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:35:58,657 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:35:58,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:35:58,657 INFO L85 PathProgramCache]: Analyzing trace with hash -386721419, now seen corresponding path program 1 times [2022-11-03 02:35:58,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:35:58,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066863432] [2022-11-03 02:35:58,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:58,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:35:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:00,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1842 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 1806 trivial. 0 not checked. [2022-11-03 02:36:00,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:36:00,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066863432] [2022-11-03 02:36:00,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066863432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:36:00,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:36:00,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:36:00,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696484349] [2022-11-03 02:36:00,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:36:00,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:36:00,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:36:00,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:36:00,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:36:00,576 INFO L87 Difference]: Start difference. First operand 51250 states and 73721 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2022-11-03 02:36:05,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:36:08,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:36:13,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:36:16,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:36:19,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:36:21,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:36:24,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:36:27,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:36:30,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:36:34,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:36:37,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:36:39,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:36:41,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:36:44,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:36:46,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:36:46,564 INFO L93 Difference]: Finished difference Result 113708 states and 163539 transitions. [2022-11-03 02:36:46,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:36:46,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) Word has length 506 [2022-11-03 02:36:46,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:36:46,919 INFO L225 Difference]: With dead ends: 113708 [2022-11-03 02:36:46,919 INFO L226 Difference]: Without dead ends: 64590 [2022-11-03 02:36:47,285 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 [2022-11-03 02:36:47,288 INFO L413 NwaCegarLoop]: 4982 mSDtfsCounter, 2262 mSDsluCounter, 4033 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 5 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2266 SdHoareTripleChecker+Valid, 8533 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:36:47,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2266 Valid, 8533 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1255 Invalid, 13 Unknown, 0 Unchecked, 42.4s Time] [2022-11-03 02:36:47,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64590 states. [2022-11-03 02:36:51,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64590 to 64566. [2022-11-03 02:36:51,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64566 states, 41312 states have (on average 1.3366576297443842) internal successors, (55220), 41835 states have internal predecessors, (55220), 18688 states have call successors, (18688), 4697 states have call predecessors, (18688), 4565 states have return successors, (18857), 18267 states have call predecessors, (18857), 18688 states have call successors, (18857) [2022-11-03 02:36:51,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64566 states to 64566 states and 92765 transitions. [2022-11-03 02:36:51,399 INFO L78 Accepts]: Start accepts. Automaton has 64566 states and 92765 transitions. Word has length 506 [2022-11-03 02:36:51,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:36:51,400 INFO L495 AbstractCegarLoop]: Abstraction has 64566 states and 92765 transitions. [2022-11-03 02:36:51,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2022-11-03 02:36:51,401 INFO L276 IsEmpty]: Start isEmpty. Operand 64566 states and 92765 transitions. [2022-11-03 02:36:51,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2022-11-03 02:36:51,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:36:51,599 INFO L195 NwaCegarLoop]: trace histogram [26, 18, 18, 18, 18, 18, 18, 8, 8, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:36:51,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:36:51,599 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:36:51,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:36:51,600 INFO L85 PathProgramCache]: Analyzing trace with hash 840795962, now seen corresponding path program 1 times [2022-11-03 02:36:51,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:36:51,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386264907] [2022-11-03 02:36:51,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:51,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:36:52,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:53,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1758 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1736 trivial. 0 not checked. [2022-11-03 02:36:53,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:36:53,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386264907] [2022-11-03 02:36:53,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386264907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:36:53,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:36:53,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:36:53,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014496205] [2022-11-03 02:36:53,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:36:53,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:36:53,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:36:53,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:36:53,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:36:53,981 INFO L87 Difference]: Start difference. First operand 64566 states and 92765 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-03 02:37:06,263 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 [] [2022-11-03 02:37:08,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:37:09,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:37:13,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:37:15,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:37:20,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:37:23,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:37:28,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:37:30,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:37:32,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:37:35,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:37:37,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:37:39,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:39,739 INFO L93 Difference]: Finished difference Result 115911 states and 167209 transitions. [2022-11-03 02:37:39,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:37:39,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 483 [2022-11-03 02:37:39,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:40,072 INFO L225 Difference]: With dead ends: 115911 [2022-11-03 02:37:40,072 INFO L226 Difference]: Without dead ends: 73987 [2022-11-03 02:37:40,221 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 [2022-11-03 02:37:40,221 INFO L413 NwaCegarLoop]: 5521 mSDtfsCounter, 2325 mSDsluCounter, 4028 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 15 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2326 SdHoareTripleChecker+Valid, 9066 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:40,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2326 Valid, 9066 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1345 Invalid, 10 Unknown, 0 Unchecked, 42.0s Time] [2022-11-03 02:37:40,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73987 states. [2022-11-03 02:37:44,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73987 to 73885. [2022-11-03 02:37:44,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73885 states, 47296 states have (on average 1.3374281123139378) internal successors, (63255), 47855 states have internal predecessors, (63255), 21422 states have call successors, (21422), 5300 states have call predecessors, (21422), 5166 states have return successors, (21601), 20981 states have call predecessors, (21601), 21422 states have call successors, (21601) [2022-11-03 02:37:44,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73885 states to 73885 states and 106278 transitions. [2022-11-03 02:37:44,480 INFO L78 Accepts]: Start accepts. Automaton has 73885 states and 106278 transitions. Word has length 483 [2022-11-03 02:37:44,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:44,481 INFO L495 AbstractCegarLoop]: Abstraction has 73885 states and 106278 transitions. [2022-11-03 02:37:44,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-03 02:37:44,481 INFO L276 IsEmpty]: Start isEmpty. Operand 73885 states and 106278 transitions. [2022-11-03 02:37:44,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2022-11-03 02:37:44,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:44,694 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 13, 13, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:44,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:37:44,695 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:44,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:44,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1211778300, now seen corresponding path program 1 times [2022-11-03 02:37:44,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:44,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308264803] [2022-11-03 02:37:44,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:44,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:46,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1831 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1803 trivial. 0 not checked. [2022-11-03 02:37:46,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:46,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308264803] [2022-11-03 02:37:46,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308264803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:37:46,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:37:46,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:37:46,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803226272] [2022-11-03 02:37:46,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:37:46,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:37:46,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:46,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:37:46,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:37:46,193 INFO L87 Difference]: Start difference. First operand 73885 states and 106278 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) [2022-11-03 02:37:50,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:37:56,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:37:58,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:38:01,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:38:04,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:38:09,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:38:13,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:38:16,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:38:18,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:38:20,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:38:23,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:38:25,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:38:27,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:38:27,923 INFO L93 Difference]: Finished difference Result 173029 states and 248740 transitions. [2022-11-03 02:38:27,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:38:27,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) Word has length 541 [2022-11-03 02:38:27,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:38:28,416 INFO L225 Difference]: With dead ends: 173029 [2022-11-03 02:38:28,416 INFO L226 Difference]: Without dead ends: 99177 [2022-11-03 02:38:28,639 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 [2022-11-03 02:38:28,640 INFO L413 NwaCegarLoop]: 4492 mSDtfsCounter, 3133 mSDsluCounter, 4000 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 7 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3138 SdHoareTripleChecker+Valid, 8012 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:38:28,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3138 Valid, 8012 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1075 Invalid, 11 Unknown, 0 Unchecked, 36.9s Time] [2022-11-03 02:38:28,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99177 states. [2022-11-03 02:38:33,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99177 to 99150. [2022-11-03 02:38:33,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99150 states, 63437 states have (on average 1.333117896495736) internal successors, (84569), 64126 states have internal predecessors, (84569), 28708 states have call successors, (28708), 7108 states have call predecessors, (28708), 7004 states have return successors, (28933), 28204 states have call predecessors, (28933), 28708 states have call successors, (28933)