./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c727ee56ff8cf558c3dc08b64ebc267261ea17bdfb88e50734daf71ad89adc7d --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:06:33,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:06:33,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:06:33,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:06:33,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:06:33,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:06:33,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:06:33,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:06:33,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:06:33,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:06:33,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:06:33,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:06:33,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:06:33,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:06:33,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:06:33,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:06:33,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:06:33,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:06:33,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:06:33,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:06:33,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:06:33,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:06:33,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:06:33,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:06:33,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:06:33,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:06:33,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:06:33,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:06:33,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:06:33,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:06:33,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:06:33,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:06:33,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:06:33,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:06:33,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:06:33,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:06:33,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:06:33,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:06:33,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:06:33,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:06:33,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:06:33,460 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 18:06:33,504 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:06:33,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:06:33,505 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:06:33,505 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:06:33,512 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:06:33,513 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:06:33,513 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:06:33,513 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:06:33,513 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:06:33,514 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:06:33,515 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:06:33,515 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:06:33,515 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:06:33,516 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:06:33,516 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:06:33,516 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:06:33,516 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:06:33,517 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:06:33,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:06:33,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:06:33,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:06:33,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:06:33,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:06:33,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:06:33,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:06:33,519 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:06:33,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:06:33,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:06:33,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:06:33,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:06:33,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:06:33,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:06:33,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:06:33,523 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:06:33,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:06:33,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:06:33,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:06:33,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:06:33,524 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c727ee56ff8cf558c3dc08b64ebc267261ea17bdfb88e50734daf71ad89adc7d [2021-11-25 18:06:33,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:06:33,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:06:33,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:06:33,852 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:06:33,853 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:06:33,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-25 18:06:33,908 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7/data/0042af2be/3f5cf7bbfbc14c06b203dc8832ea9b16/FLAGc513bb1f2 [2021-11-25 18:06:34,838 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:06:34,839 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-25 18:06:34,909 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7/data/0042af2be/3f5cf7bbfbc14c06b203dc8832ea9b16/FLAGc513bb1f2 [2021-11-25 18:06:35,292 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7/data/0042af2be/3f5cf7bbfbc14c06b203dc8832ea9b16 [2021-11-25 18:06:35,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:06:35,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:06:35,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:06:35,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:06:35,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:06:35,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:06:35" (1/1) ... [2021-11-25 18:06:35,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@763c534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:35, skipping insertion in model container [2021-11-25 18:06:35,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:06:35" (1/1) ... [2021-11-25 18:06:35,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:06:35,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:06:38,534 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_6db5ed4f-c396-459b-940b-c052dec21c9f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328445,328458] [2021-11-25 18:06:38,537 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_6db5ed4f-c396-459b-940b-c052dec21c9f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328590,328603] [2021-11-25 18:06:38,551 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:06:38,580 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:06:39,000 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_6db5ed4f-c396-459b-940b-c052dec21c9f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328445,328458] [2021-11-25 18:06:39,001 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_6db5ed4f-c396-459b-940b-c052dec21c9f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328590,328603] [2021-11-25 18:06:39,005 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:06:39,182 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:06:39,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:39 WrapperNode [2021-11-25 18:06:39,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:06:39,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:06:39,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:06:39,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:06:39,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:39" (1/1) ... [2021-11-25 18:06:39,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:39" (1/1) ... [2021-11-25 18:06:39,488 INFO L137 Inliner]: procedures = 388, calls = 2109, calls flagged for inlining = 154, calls inlined = 135, statements flattened = 4340 [2021-11-25 18:06:39,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:06:39,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:06:39,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:06:39,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:06:39,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:39" (1/1) ... [2021-11-25 18:06:39,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:39" (1/1) ... [2021-11-25 18:06:39,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:39" (1/1) ... [2021-11-25 18:06:39,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:39" (1/1) ... [2021-11-25 18:06:39,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:39" (1/1) ... [2021-11-25 18:06:39,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:39" (1/1) ... [2021-11-25 18:06:39,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:39" (1/1) ... [2021-11-25 18:06:39,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:06:39,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:06:39,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:06:39,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:06:39,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:39" (1/1) ... [2021-11-25 18:06:39,775 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:06:39,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:06:39,798 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:06:39,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:06:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2021-11-25 18:06:39,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2021-11-25 18:06:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 18:06:39,850 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 18:06:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2021-11-25 18:06:39,850 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2021-11-25 18:06:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2021-11-25 18:06:39,850 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2021-11-25 18:06:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 18:06:39,851 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 18:06:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 18:06:39,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 18:06:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-25 18:06:39,851 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-25 18:06:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2021-11-25 18:06:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2021-11-25 18:06:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2021-11-25 18:06:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2021-11-25 18:06:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2021-11-25 18:06:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2021-11-25 18:06:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-11-25 18:06:39,853 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-11-25 18:06:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 18:06:39,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 18:06:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2021-11-25 18:06:39,853 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2021-11-25 18:06:39,854 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2021-11-25 18:06:39,854 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2021-11-25 18:06:39,854 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-25 18:06:39,854 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-25 18:06:39,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 18:06:39,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 18:06:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:06:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2021-11-25 18:06:39,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2021-11-25 18:06:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2021-11-25 18:06:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2021-11-25 18:06:39,856 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-25 18:06:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-25 18:06:39,856 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2021-11-25 18:06:39,857 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2021-11-25 18:06:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 18:06:39,857 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 18:06:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2021-11-25 18:06:39,858 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2021-11-25 18:06:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2021-11-25 18:06:39,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2021-11-25 18:06:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 18:06:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2021-11-25 18:06:39,860 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2021-11-25 18:06:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2021-11-25 18:06:39,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2021-11-25 18:06:39,861 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2021-11-25 18:06:39,861 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2021-11-25 18:06:39,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 18:06:39,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 18:06:39,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 18:06:39,862 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2021-11-25 18:06:39,863 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2021-11-25 18:06:39,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:06:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 18:06:39,864 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 18:06:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2021-11-25 18:06:39,864 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2021-11-25 18:06:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 18:06:39,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 18:06:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 18:06:39,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 18:06:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 18:06:39,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 18:06:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2021-11-25 18:06:39,866 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2021-11-25 18:06:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2021-11-25 18:06:39,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2021-11-25 18:06:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2021-11-25 18:06:39,867 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2021-11-25 18:06:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2021-11-25 18:06:39,867 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2021-11-25 18:06:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:06:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 18:06:39,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 18:06:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2021-11-25 18:06:39,869 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2021-11-25 18:06:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:06:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 18:06:39,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 18:06:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 18:06:39,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 18:06:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:06:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:06:39,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:06:39,872 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:06:39,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:06:39,872 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2021-11-25 18:06:39,872 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2021-11-25 18:06:39,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-25 18:06:39,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-25 18:06:39,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-25 18:06:39,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-25 18:06:39,873 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-25 18:06:39,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-25 18:06:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 18:06:39,874 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 18:06:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2021-11-25 18:06:39,874 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2021-11-25 18:06:39,875 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2021-11-25 18:06:39,875 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2021-11-25 18:06:39,875 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-25 18:06:39,876 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-25 18:06:39,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 18:06:39,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 18:06:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2021-11-25 18:06:39,879 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2021-11-25 18:06:39,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:06:39,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:06:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2021-11-25 18:06:39,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2021-11-25 18:06:39,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 18:06:39,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 18:06:39,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 18:06:39,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 18:06:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2021-11-25 18:06:39,888 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2021-11-25 18:06:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-11-25 18:06:39,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-11-25 18:06:39,889 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2021-11-25 18:06:39,889 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2021-11-25 18:06:39,889 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2021-11-25 18:06:39,889 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2021-11-25 18:06:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 18:06:39,944 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 18:06:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2021-11-25 18:06:39,944 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2021-11-25 18:06:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2021-11-25 18:06:39,945 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2021-11-25 18:06:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 18:06:39,945 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 18:06:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:06:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:06:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2021-11-25 18:06:39,945 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2021-11-25 18:06:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 18:06:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 18:06:39,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 18:06:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-25 18:06:39,946 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-25 18:06:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 18:06:39,946 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 18:06:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-25 18:06:39,946 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-25 18:06:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 18:06:39,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 18:06:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-25 18:06:39,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-25 18:06:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 18:06:39,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 18:06:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2021-11-25 18:06:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2021-11-25 18:06:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-25 18:06:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-25 18:06:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-25 18:06:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-25 18:06:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-25 18:06:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-25 18:06:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 18:06:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 18:06:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-25 18:06:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-25 18:06:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:06:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-25 18:06:39,948 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-25 18:06:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2021-11-25 18:06:39,948 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2021-11-25 18:06:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-25 18:06:39,948 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-25 18:06:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 18:06:39,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 18:06:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2021-11-25 18:06:39,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2021-11-25 18:06:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2021-11-25 18:06:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2021-11-25 18:06:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2021-11-25 18:06:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2021-11-25 18:06:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 18:06:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 18:06:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2021-11-25 18:06:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2021-11-25 18:06:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2021-11-25 18:06:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2021-11-25 18:06:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2021-11-25 18:06:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2021-11-25 18:06:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-25 18:06:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-25 18:06:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:06:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-11-25 18:06:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-11-25 18:06:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 18:06:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 18:06:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2021-11-25 18:06:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2021-11-25 18:06:40,634 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:06:40,640 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:06:40,824 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 18:06:44,403 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 18:06:45,117 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:06:46,249 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:06:46,250 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 18:06:46,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:06:46 BoogieIcfgContainer [2021-11-25 18:06:46,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:06:46,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:06:46,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:06:46,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:06:46,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:06:35" (1/3) ... [2021-11-25 18:06:46,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d1942d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:06:46, skipping insertion in model container [2021-11-25 18:06:46,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:39" (2/3) ... [2021-11-25 18:06:46,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d1942d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:06:46, skipping insertion in model container [2021-11-25 18:06:46,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:06:46" (3/3) ... [2021-11-25 18:06:46,271 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-25 18:06:46,278 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:06:46,278 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:06:46,352 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:06:46,358 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:06:46,359 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:06:46,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 1559 states, 807 states have (on average 1.241635687732342) internal successors, (1002), 831 states have internal predecessors, (1002), 660 states have call successors, (660), 92 states have call predecessors, (660), 91 states have return successors, (656), 644 states have call predecessors, (656), 656 states have call successors, (656) [2021-11-25 18:06:46,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-25 18:06:46,460 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:06:46,461 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:06:46,465 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:06:46,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:06:46,471 INFO L85 PathProgramCache]: Analyzing trace with hash 737644416, now seen corresponding path program 1 times [2021-11-25 18:06:46,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:06:46,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471444390] [2021-11-25 18:06:46,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:06:46,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:06:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:06:47,225 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-11-25 18:06:47,226 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:06:47,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471444390] [2021-11-25 18:06:47,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471444390] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:06:47,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:06:47,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:06:47,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111800789] [2021-11-25 18:06:47,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:06:47,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:06:47,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:06:47,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:06:47,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:06:47,287 INFO L87 Difference]: Start difference. First operand has 1559 states, 807 states have (on average 1.241635687732342) internal successors, (1002), 831 states have internal predecessors, (1002), 660 states have call successors, (660), 92 states have call predecessors, (660), 91 states have return successors, (656), 644 states have call predecessors, (656), 656 states have call successors, (656) Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-25 18:06:49,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:50,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:52,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:06:52,902 INFO L93 Difference]: Finished difference Result 4334 states and 6480 transitions. [2021-11-25 18:06:52,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:06:52,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 127 [2021-11-25 18:06:52,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:06:52,955 INFO L225 Difference]: With dead ends: 4334 [2021-11-25 18:06:52,955 INFO L226 Difference]: Without dead ends: 2729 [2021-11-25 18:06:52,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:06:52,976 INFO L933 BasicCegarLoop]: 2720 mSDtfsCounter, 1852 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1852 SdHoareTripleChecker+Valid, 4818 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:06:52,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1852 Valid, 4818 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-11-25 18:06:52,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2021-11-25 18:06:53,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2725. [2021-11-25 18:06:53,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2725 states, 1416 states have (on average 1.2337570621468927) internal successors, (1747), 1462 states have internal predecessors, (1747), 1143 states have call successors, (1143), 166 states have call predecessors, (1143), 165 states have return successors, (1160), 1116 states have call predecessors, (1160), 1143 states have call successors, (1160) [2021-11-25 18:06:53,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2725 states to 2725 states and 4050 transitions. [2021-11-25 18:06:53,473 INFO L78 Accepts]: Start accepts. Automaton has 2725 states and 4050 transitions. Word has length 127 [2021-11-25 18:06:53,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:06:53,475 INFO L470 AbstractCegarLoop]: Abstraction has 2725 states and 4050 transitions. [2021-11-25 18:06:53,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-25 18:06:53,477 INFO L276 IsEmpty]: Start isEmpty. Operand 2725 states and 4050 transitions. [2021-11-25 18:06:53,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-25 18:06:53,505 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:06:53,506 INFO L514 BasicCegarLoop]: trace histogram [8, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:06:53,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:06:53,506 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:06:53,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:06:53,508 INFO L85 PathProgramCache]: Analyzing trace with hash 806473264, now seen corresponding path program 1 times [2021-11-25 18:06:53,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:06:53,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697883639] [2021-11-25 18:06:53,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:06:53,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:06:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:06:53,838 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2021-11-25 18:06:53,839 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:06:53,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697883639] [2021-11-25 18:06:53,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697883639] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:06:53,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:06:53,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:06:53,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054821461] [2021-11-25 18:06:53,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:06:53,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:06:53,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:06:53,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:06:53,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:06:53,848 INFO L87 Difference]: Start difference. First operand 2725 states and 4050 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-25 18:06:56,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:57,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:00,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:00,324 INFO L93 Difference]: Finished difference Result 7256 states and 10798 transitions. [2021-11-25 18:07:00,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:07:00,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 181 [2021-11-25 18:07:00,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:00,373 INFO L225 Difference]: With dead ends: 7256 [2021-11-25 18:07:00,373 INFO L226 Difference]: Without dead ends: 4542 [2021-11-25 18:07:00,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:07:00,397 INFO L933 BasicCegarLoop]: 2568 mSDtfsCounter, 1571 mSDsluCounter, 2213 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 4598 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:00,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1571 Valid, 4598 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2021-11-25 18:07:00,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4542 states. [2021-11-25 18:07:00,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4542 to 4538. [2021-11-25 18:07:00,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4538 states, 2346 states have (on average 1.2310315430520034) internal successors, (2888), 2414 states have internal predecessors, (2888), 1913 states have call successors, (1913), 279 states have call predecessors, (1913), 278 states have return successors, (1930), 1876 states have call predecessors, (1930), 1913 states have call successors, (1930) [2021-11-25 18:07:00,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4538 states to 4538 states and 6731 transitions. [2021-11-25 18:07:00,901 INFO L78 Accepts]: Start accepts. Automaton has 4538 states and 6731 transitions. Word has length 181 [2021-11-25 18:07:00,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:00,903 INFO L470 AbstractCegarLoop]: Abstraction has 4538 states and 6731 transitions. [2021-11-25 18:07:00,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-25 18:07:00,904 INFO L276 IsEmpty]: Start isEmpty. Operand 4538 states and 6731 transitions. [2021-11-25 18:07:00,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-25 18:07:00,923 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:00,924 INFO L514 BasicCegarLoop]: trace histogram [11, 7, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:00,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:07:00,924 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:07:00,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:00,926 INFO L85 PathProgramCache]: Analyzing trace with hash -404910037, now seen corresponding path program 1 times [2021-11-25 18:07:00,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:00,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502116474] [2021-11-25 18:07:00,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:00,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:01,321 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2021-11-25 18:07:01,321 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:01,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502116474] [2021-11-25 18:07:01,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502116474] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:01,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:01,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:07:01,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197333594] [2021-11-25 18:07:01,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:01,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:07:01,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:01,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:07:01,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:07:01,330 INFO L87 Difference]: Start difference. First operand 4538 states and 6731 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-25 18:07:03,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:07,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:07,572 INFO L93 Difference]: Finished difference Result 10882 states and 16159 transitions. [2021-11-25 18:07:07,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:07:07,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 225 [2021-11-25 18:07:07,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:07,635 INFO L225 Difference]: With dead ends: 10882 [2021-11-25 18:07:07,635 INFO L226 Difference]: Without dead ends: 6355 [2021-11-25 18:07:07,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:07:07,674 INFO L933 BasicCegarLoop]: 3507 mSDtfsCounter, 1580 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 5521 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:07,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1580 Valid, 5521 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2021-11-25 18:07:07,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6355 states. [2021-11-25 18:07:08,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6355 to 6351. [2021-11-25 18:07:08,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6351 states, 3275 states have (on average 1.2299236641221374) internal successors, (4028), 3365 states have internal predecessors, (4028), 2683 states have call successors, (2683), 393 states have call predecessors, (2683), 392 states have return successors, (2700), 2636 states have call predecessors, (2700), 2683 states have call successors, (2700) [2021-11-25 18:07:08,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6351 states to 6351 states and 9411 transitions. [2021-11-25 18:07:08,396 INFO L78 Accepts]: Start accepts. Automaton has 6351 states and 9411 transitions. Word has length 225 [2021-11-25 18:07:08,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:08,399 INFO L470 AbstractCegarLoop]: Abstraction has 6351 states and 9411 transitions. [2021-11-25 18:07:08,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-25 18:07:08,400 INFO L276 IsEmpty]: Start isEmpty. Operand 6351 states and 9411 transitions. [2021-11-25 18:07:08,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-11-25 18:07:08,427 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:08,427 INFO L514 BasicCegarLoop]: trace histogram [13, 11, 11, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:08,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:07:08,428 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:07:08,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:08,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1311790589, now seen corresponding path program 1 times [2021-11-25 18:07:08,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:08,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701373796] [2021-11-25 18:07:08,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:08,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:08,794 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2021-11-25 18:07:08,795 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:08,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701373796] [2021-11-25 18:07:08,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701373796] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:08,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:08,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:07:08,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822812316] [2021-11-25 18:07:08,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:08,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:07:08,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:08,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:07:08,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:07:08,798 INFO L87 Difference]: Start difference. First operand 6351 states and 9411 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-25 18:07:11,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:13,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:13,899 INFO L93 Difference]: Finished difference Result 14682 states and 21752 transitions. [2021-11-25 18:07:13,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:07:13,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 287 [2021-11-25 18:07:13,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:13,979 INFO L225 Difference]: With dead ends: 14682 [2021-11-25 18:07:13,980 INFO L226 Difference]: Without dead ends: 8342 [2021-11-25 18:07:14,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:07:14,030 INFO L933 BasicCegarLoop]: 3578 mSDtfsCounter, 2013 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2013 SdHoareTripleChecker+Valid, 5305 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:14,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2013 Valid, 5305 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-11-25 18:07:14,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8342 states. [2021-11-25 18:07:14,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8342 to 8338. [2021-11-25 18:07:14,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8338 states, 4298 states have (on average 1.2291763610981852) internal successors, (5283), 4415 states have internal predecessors, (5283), 3514 states have call successors, (3514), 527 states have call predecessors, (3514), 525 states have return successors, (3531), 3453 states have call predecessors, (3531), 3514 states have call successors, (3531) [2021-11-25 18:07:14,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8338 states to 8338 states and 12328 transitions. [2021-11-25 18:07:14,778 INFO L78 Accepts]: Start accepts. Automaton has 8338 states and 12328 transitions. Word has length 287 [2021-11-25 18:07:14,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:14,780 INFO L470 AbstractCegarLoop]: Abstraction has 8338 states and 12328 transitions. [2021-11-25 18:07:14,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-25 18:07:14,780 INFO L276 IsEmpty]: Start isEmpty. Operand 8338 states and 12328 transitions. [2021-11-25 18:07:14,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-11-25 18:07:14,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:14,812 INFO L514 BasicCegarLoop]: trace histogram [13, 11, 11, 8, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:14,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:07:14,812 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:07:14,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:14,813 INFO L85 PathProgramCache]: Analyzing trace with hash 387094490, now seen corresponding path program 1 times [2021-11-25 18:07:14,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:14,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365973126] [2021-11-25 18:07:14,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:14,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:15,217 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2021-11-25 18:07:15,218 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:15,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365973126] [2021-11-25 18:07:15,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365973126] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:15,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:15,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:07:15,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656374059] [2021-11-25 18:07:15,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:15,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:07:15,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:15,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:07:15,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:07:15,220 INFO L87 Difference]: Start difference. First operand 8338 states and 12328 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-25 18:07:16,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:21,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:22,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:22,781 INFO L93 Difference]: Finished difference Result 24619 states and 36411 transitions. [2021-11-25 18:07:22,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:07:22,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 314 [2021-11-25 18:07:22,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:22,919 INFO L225 Difference]: With dead ends: 24619 [2021-11-25 18:07:22,919 INFO L226 Difference]: Without dead ends: 16292 [2021-11-25 18:07:22,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:07:22,971 INFO L933 BasicCegarLoop]: 2640 mSDtfsCounter, 1992 mSDsluCounter, 2240 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 4687 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:22,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1992 Valid, 4687 Invalid, 395 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 393 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2021-11-25 18:07:22,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16292 states. [2021-11-25 18:07:24,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16292 to 16290. [2021-11-25 18:07:24,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16290 states, 8398 states have (on average 1.2305310788282924) internal successors, (10334), 8621 states have internal predecessors, (10334), 6859 states have call successors, (6859), 1035 states have call predecessors, (6859), 1032 states have return successors, (6895), 6743 states have call predecessors, (6895), 6859 states have call successors, (6895) [2021-11-25 18:07:24,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16290 states to 16290 states and 24088 transitions. [2021-11-25 18:07:24,401 INFO L78 Accepts]: Start accepts. Automaton has 16290 states and 24088 transitions. Word has length 314 [2021-11-25 18:07:24,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:24,403 INFO L470 AbstractCegarLoop]: Abstraction has 16290 states and 24088 transitions. [2021-11-25 18:07:24,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-25 18:07:24,403 INFO L276 IsEmpty]: Start isEmpty. Operand 16290 states and 24088 transitions. [2021-11-25 18:07:24,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-11-25 18:07:24,435 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:24,436 INFO L514 BasicCegarLoop]: trace histogram [13, 11, 11, 8, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:24,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:07:24,436 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:07:24,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:24,437 INFO L85 PathProgramCache]: Analyzing trace with hash -982150899, now seen corresponding path program 1 times [2021-11-25 18:07:24,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:24,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774180359] [2021-11-25 18:07:24,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:24,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2021-11-25 18:07:24,868 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:24,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774180359] [2021-11-25 18:07:24,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774180359] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:07:24,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61881714] [2021-11-25 18:07:24,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:24,869 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:07:24,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:07:24,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:07:25,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:07:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:26,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 4420 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-25 18:07:26,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:07:43,037 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2021-11-25 18:07:43,037 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:07:43,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61881714] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:43,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:07:43,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2021-11-25 18:07:43,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180352612] [2021-11-25 18:07:43,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:43,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:07:43,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:43,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:07:43,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-25 18:07:43,041 INFO L87 Difference]: Start difference. First operand 16290 states and 24088 transitions. Second operand has 6 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 1 states have call successors, (48) [2021-11-25 18:07:45,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:47,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:48,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:50,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:51,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:53,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:56,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:01,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:08:01,329 INFO L93 Difference]: Finished difference Result 28635 states and 42369 transitions. [2021-11-25 18:08:01,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:08:01,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 1 states have call successors, (48) Word has length 318 [2021-11-25 18:08:01,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:08:01,512 INFO L225 Difference]: With dead ends: 28635 [2021-11-25 18:08:01,512 INFO L226 Difference]: Without dead ends: 28633 [2021-11-25 18:08:01,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-25 18:08:01,531 INFO L933 BasicCegarLoop]: 3064 mSDtfsCounter, 1501 mSDsluCounter, 9571 mSDsCounter, 0 mSdLazyCounter, 2031 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 11823 SdHoareTripleChecker+Invalid, 2032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:08:01,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1502 Valid, 11823 Invalid, 2032 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2031 Invalid, 0 Unknown, 0 Unchecked, 17.1s Time] [2021-11-25 18:08:01,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28633 states. [2021-11-25 18:08:03,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28633 to 28613. [2021-11-25 18:08:04,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28613 states, 14706 states have (on average 1.2301101591187271) internal successors, (18090), 15144 states have internal predecessors, (18090), 12092 states have call successors, (12092), 1836 states have call predecessors, (12092), 1814 states have return successors, (12164), 11820 states have call predecessors, (12164), 12092 states have call successors, (12164) [2021-11-25 18:08:04,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28613 states to 28613 states and 42346 transitions. [2021-11-25 18:08:04,182 INFO L78 Accepts]: Start accepts. Automaton has 28613 states and 42346 transitions. Word has length 318 [2021-11-25 18:08:04,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:08:04,184 INFO L470 AbstractCegarLoop]: Abstraction has 28613 states and 42346 transitions. [2021-11-25 18:08:04,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 1 states have call successors, (48) [2021-11-25 18:08:04,184 INFO L276 IsEmpty]: Start isEmpty. Operand 28613 states and 42346 transitions. [2021-11-25 18:08:04,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-11-25 18:08:04,245 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:08:04,246 INFO L514 BasicCegarLoop]: trace histogram [15, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-25 18:08:04,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:08:04,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db5ed4f-c396-459b-940b-c052dec21c9f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-25 18:08:04,459 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:08:04,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:08:04,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1534964272, now seen corresponding path program 1 times [2021-11-25 18:08:04,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:08:04,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289269296] [2021-11-25 18:08:04,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:08:04,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:08:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:08:04,876 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-11-25 18:08:04,876 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:08:04,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289269296] [2021-11-25 18:08:04,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289269296] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:08:04,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:08:04,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:08:04,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263725188] [2021-11-25 18:08:04,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:08:04,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:08:04,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:08:04,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:08:04,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:08:04,880 INFO L87 Difference]: Start difference. First operand 28613 states and 42346 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-25 18:08:06,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:08,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:10,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:13,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:08:13,804 INFO L93 Difference]: Finished difference Result 63529 states and 94127 transitions. [2021-11-25 18:08:13,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:08:13,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 330 [2021-11-25 18:08:13,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:08:14,035 INFO L225 Difference]: With dead ends: 63529 [2021-11-25 18:08:14,035 INFO L226 Difference]: Without dead ends: 34927 [2021-11-25 18:08:14,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:08:14,328 INFO L933 BasicCegarLoop]: 3508 mSDtfsCounter, 1589 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 5530 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:08:14,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1589 Valid, 5530 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2021-11-25 18:08:14,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34927 states. [2021-11-25 18:08:16,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34927 to 34917. [2021-11-25 18:08:16,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34917 states, 17940 states have (on average 1.2305462653288741) internal successors, (22076), 18464 states have internal predecessors, (22076), 14768 states have call successors, (14768), 2234 states have call predecessors, (14768), 2208 states have return successors, (14840), 14446 states have call predecessors, (14840), 14768 states have call successors, (14840) [2021-11-25 18:08:16,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34917 states to 34917 states and 51684 transitions. [2021-11-25 18:08:16,985 INFO L78 Accepts]: Start accepts. Automaton has 34917 states and 51684 transitions. Word has length 330 [2021-11-25 18:08:16,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:08:16,986 INFO L470 AbstractCegarLoop]: Abstraction has 34917 states and 51684 transitions. [2021-11-25 18:08:16,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-25 18:08:16,986 INFO L276 IsEmpty]: Start isEmpty. Operand 34917 states and 51684 transitions. [2021-11-25 18:08:17,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2021-11-25 18:08:17,045 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:08:17,046 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:08:17,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 18:08:17,046 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:08:17,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:08:17,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1035810999, now seen corresponding path program 1 times [2021-11-25 18:08:17,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:08:17,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764836780] [2021-11-25 18:08:17,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:08:17,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:08:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:08:17,923 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2021-11-25 18:08:17,923 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:08:17,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764836780] [2021-11-25 18:08:17,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764836780] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:08:17,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:08:17,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:08:17,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082601620] [2021-11-25 18:08:17,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:08:17,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:08:17,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:08:17,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:08:17,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:08:17,927 INFO L87 Difference]: Start difference. First operand 34917 states and 51684 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2021-11-25 18:08:19,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:23,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:25,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:27,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:08:27,101 INFO L93 Difference]: Finished difference Result 69658 states and 102616 transitions. [2021-11-25 18:08:27,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:08:27,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 368 [2021-11-25 18:08:27,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:08:27,277 INFO L225 Difference]: With dead ends: 69658 [2021-11-25 18:08:27,277 INFO L226 Difference]: Without dead ends: 34752 [2021-11-25 18:08:27,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:08:27,438 INFO L933 BasicCegarLoop]: 2666 mSDtfsCounter, 2059 mSDsluCounter, 2213 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 4694 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:08:27,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2059 Valid, 4694 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 409 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2021-11-25 18:08:27,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34752 states. [2021-11-25 18:08:29,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34752 to 34742. [2021-11-25 18:08:29,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34742 states, 18425 states have (on average 1.221438263229308) internal successors, (22505), 18979 states have internal predecessors, (22505), 14048 states have call successors, (14048), 2306 states have call predecessors, (14048), 2268 states have return successors, (14186), 13670 states have call predecessors, (14186), 14048 states have call successors, (14186) [2021-11-25 18:08:29,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34742 states to 34742 states and 50739 transitions. [2021-11-25 18:08:29,988 INFO L78 Accepts]: Start accepts. Automaton has 34742 states and 50739 transitions. Word has length 368 [2021-11-25 18:08:29,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:08:29,989 INFO L470 AbstractCegarLoop]: Abstraction has 34742 states and 50739 transitions. [2021-11-25 18:08:29,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2021-11-25 18:08:29,989 INFO L276 IsEmpty]: Start isEmpty. Operand 34742 states and 50739 transitions. [2021-11-25 18:08:30,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2021-11-25 18:08:30,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:08:30,008 INFO L514 BasicCegarLoop]: trace histogram [17, 14, 14, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:08:30,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 18:08:30,008 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:08:30,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:08:30,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1062874566, now seen corresponding path program 1 times [2021-11-25 18:08:30,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:08:30,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052788844] [2021-11-25 18:08:30,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:08:30,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:08:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:08:30,295 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2021-11-25 18:08:30,295 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:08:30,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052788844] [2021-11-25 18:08:30,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052788844] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:08:30,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:08:30,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:08:30,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246312473] [2021-11-25 18:08:30,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:08:30,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:08:30,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:08:30,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:08:30,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:08:30,299 INFO L87 Difference]: Start difference. First operand 34742 states and 50739 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-25 18:08:32,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:33,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:35,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:37,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:38,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:41,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:42,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:46,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:08:46,916 INFO L93 Difference]: Finished difference Result 75977 states and 110911 transitions. [2021-11-25 18:08:46,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:08:46,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) Word has length 366 [2021-11-25 18:08:46,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:08:47,152 INFO L225 Difference]: With dead ends: 75977 [2021-11-25 18:08:47,152 INFO L226 Difference]: Without dead ends: 41264 [2021-11-25 18:08:47,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:08:47,326 INFO L933 BasicCegarLoop]: 3574 mSDtfsCounter, 1696 mSDsluCounter, 9993 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 12743 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:08:47,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1696 Valid, 12743 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 14.9s Time] [2021-11-25 18:08:47,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41264 states. [2021-11-25 18:08:49,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41264 to 41226. [2021-11-25 18:08:49,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41226 states, 21828 states have (on average 1.22310793476269) internal successors, (26698), 22563 states have internal predecessors, (26698), 16634 states have call successors, (16634), 2803 states have call predecessors, (16634), 2763 states have return successors, (16790), 16133 states have call predecessors, (16790), 16634 states have call successors, (16790) [2021-11-25 18:08:50,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41226 states to 41226 states and 60122 transitions. [2021-11-25 18:08:50,200 INFO L78 Accepts]: Start accepts. Automaton has 41226 states and 60122 transitions. Word has length 366 [2021-11-25 18:08:50,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:08:50,202 INFO L470 AbstractCegarLoop]: Abstraction has 41226 states and 60122 transitions. [2021-11-25 18:08:50,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-25 18:08:50,203 INFO L276 IsEmpty]: Start isEmpty. Operand 41226 states and 60122 transitions. [2021-11-25 18:08:50,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2021-11-25 18:08:50,218 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:08:50,218 INFO L514 BasicCegarLoop]: trace histogram [17, 14, 14, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:08:50,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 18:08:50,219 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:08:50,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:08:50,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1605111313, now seen corresponding path program 1 times [2021-11-25 18:08:50,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:08:50,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149781576] [2021-11-25 18:08:50,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:08:50,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:08:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:08:50,456 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2021-11-25 18:08:50,456 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:08:50,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149781576] [2021-11-25 18:08:50,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149781576] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:08:50,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:08:50,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:08:50,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645842090] [2021-11-25 18:08:50,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:08:50,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:08:50,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:08:50,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:08:50,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:08:50,459 INFO L87 Difference]: Start difference. First operand 41226 states and 60122 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-25 18:08:53,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:54,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:55,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:56,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:01,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:05,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:09:05,862 INFO L93 Difference]: Finished difference Result 87893 states and 128261 transitions. [2021-11-25 18:09:05,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:09:05,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) Word has length 367 [2021-11-25 18:09:05,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:09:06,218 INFO L225 Difference]: With dead ends: 87893 [2021-11-25 18:09:06,219 INFO L226 Difference]: Without dead ends: 46696 [2021-11-25 18:09:06,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:09:06,372 INFO L933 BasicCegarLoop]: 3514 mSDtfsCounter, 1574 mSDsluCounter, 9866 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 12567 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:09:06,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1574 Valid, 12567 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2021-11-25 18:09:06,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46696 states. [2021-11-25 18:09:09,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46696 to 46658. [2021-11-25 18:09:09,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46658 states, 24687 states have (on average 1.2223842508202698) internal successors, (30177), 25497 states have internal predecessors, (30177), 18842 states have call successors, (18842), 3160 states have call predecessors, (18842), 3128 states have return successors, (19010), 18306 states have call predecessors, (19010), 18842 states have call successors, (19010) [2021-11-25 18:09:09,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46658 states to 46658 states and 68029 transitions. [2021-11-25 18:09:09,308 INFO L78 Accepts]: Start accepts. Automaton has 46658 states and 68029 transitions. Word has length 367 [2021-11-25 18:09:09,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:09:09,309 INFO L470 AbstractCegarLoop]: Abstraction has 46658 states and 68029 transitions. [2021-11-25 18:09:09,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-25 18:09:09,309 INFO L276 IsEmpty]: Start isEmpty. Operand 46658 states and 68029 transitions. [2021-11-25 18:09:09,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2021-11-25 18:09:09,317 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:09:09,317 INFO L514 BasicCegarLoop]: trace histogram [17, 14, 14, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:09:09,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 18:09:09,318 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:09:09,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:09:09,319 INFO L85 PathProgramCache]: Analyzing trace with hash -644089884, now seen corresponding path program 1 times [2021-11-25 18:09:09,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:09:09,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048024824] [2021-11-25 18:09:09,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:09:09,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:09:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:09:09,877 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2021-11-25 18:09:09,878 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:09:09,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048024824] [2021-11-25 18:09:09,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048024824] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:09:09,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:09:09,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:09:09,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965552579] [2021-11-25 18:09:09,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:09:09,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:09:09,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:09:09,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:09:09,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:09:09,881 INFO L87 Difference]: Start difference. First operand 46658 states and 68029 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-25 18:09:12,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:14,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:16,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:24,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:09:24,694 INFO L93 Difference]: Finished difference Result 98673 states and 144027 transitions. [2021-11-25 18:09:24,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:09:24,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) Word has length 367 [2021-11-25 18:09:24,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:09:24,955 INFO L225 Difference]: With dead ends: 98673 [2021-11-25 18:09:24,955 INFO L226 Difference]: Without dead ends: 52044 [2021-11-25 18:09:25,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:09:25,243 INFO L933 BasicCegarLoop]: 3513 mSDtfsCounter, 1564 mSDsluCounter, 9869 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1564 SdHoareTripleChecker+Valid, 12570 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:09:25,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1564 Valid, 12570 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2021-11-25 18:09:25,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52044 states. [2021-11-25 18:09:27,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52044 to 52006. [2021-11-25 18:09:28,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52006 states, 27510 states have (on average 1.222101054162123) internal successors, (33620), 28395 states have internal predecessors, (33620), 21038 states have call successors, (21038), 3493 states have call predecessors, (21038), 3457 states have return successors, (21206), 20455 states have call predecessors, (21206), 21038 states have call successors, (21206) [2021-11-25 18:09:28,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52006 states to 52006 states and 75864 transitions. [2021-11-25 18:09:28,522 INFO L78 Accepts]: Start accepts. Automaton has 52006 states and 75864 transitions. Word has length 367 [2021-11-25 18:09:28,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:09:28,523 INFO L470 AbstractCegarLoop]: Abstraction has 52006 states and 75864 transitions. [2021-11-25 18:09:28,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-25 18:09:28,524 INFO L276 IsEmpty]: Start isEmpty. Operand 52006 states and 75864 transitions. [2021-11-25 18:09:28,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2021-11-25 18:09:28,534 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:09:28,534 INFO L514 BasicCegarLoop]: trace histogram [18, 14, 14, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:09:28,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 18:09:28,535 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:09:28,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:09:28,536 INFO L85 PathProgramCache]: Analyzing trace with hash -966840358, now seen corresponding path program 1 times [2021-11-25 18:09:28,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:09:28,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941836195] [2021-11-25 18:09:28,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:09:28,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:09:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:09:28,766 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2021-11-25 18:09:28,766 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:09:28,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941836195] [2021-11-25 18:09:28,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941836195] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:09:28,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:09:28,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:09:28,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300646455] [2021-11-25 18:09:28,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:09:28,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:09:28,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:09:28,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:09:28,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:09:28,769 INFO L87 Difference]: Start difference. First operand 52006 states and 75864 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-25 18:09:30,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:31,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:39,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:09:39,000 INFO L93 Difference]: Finished difference Result 110041 states and 160555 transitions. [2021-11-25 18:09:39,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:09:39,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 380 [2021-11-25 18:09:39,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:09:39,411 INFO L225 Difference]: With dead ends: 110041 [2021-11-25 18:09:39,411 INFO L226 Difference]: Without dead ends: 58064 [2021-11-25 18:09:39,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:09:39,608 INFO L933 BasicCegarLoop]: 3302 mSDtfsCounter, 1692 mSDsluCounter, 2208 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 5327 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:09:39,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1692 Valid, 5327 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2021-11-25 18:09:39,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58064 states. [2021-11-25 18:09:42,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58064 to 58050. [2021-11-25 18:09:42,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58050 states, 30669 states have (on average 1.2242003325833903) internal successors, (37545), 31727 states have internal predecessors, (37545), 23488 states have call successors, (23488), 3938 states have call predecessors, (23488), 3892 states have return successors, (23656), 22774 states have call predecessors, (23656), 23488 states have call successors, (23656) [2021-11-25 18:09:43,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58050 states to 58050 states and 84689 transitions. [2021-11-25 18:09:43,203 INFO L78 Accepts]: Start accepts. Automaton has 58050 states and 84689 transitions. Word has length 380 [2021-11-25 18:09:43,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:09:43,212 INFO L470 AbstractCegarLoop]: Abstraction has 58050 states and 84689 transitions. [2021-11-25 18:09:43,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-25 18:09:43,213 INFO L276 IsEmpty]: Start isEmpty. Operand 58050 states and 84689 transitions. [2021-11-25 18:09:43,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2021-11-25 18:09:43,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:09:43,225 INFO L514 BasicCegarLoop]: trace histogram [18, 14, 14, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-25 18:09:43,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 18:09:43,225 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:09:43,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:09:43,226 INFO L85 PathProgramCache]: Analyzing trace with hash -2093060141, now seen corresponding path program 1 times [2021-11-25 18:09:43,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:09:43,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057239343] [2021-11-25 18:09:43,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:09:43,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:09:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:09:43,442 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2021-11-25 18:09:43,443 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:09:43,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057239343] [2021-11-25 18:09:43,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057239343] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:09:43,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:09:43,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:09:43,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194883388] [2021-11-25 18:09:43,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:09:43,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:09:43,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:09:43,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:09:43,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:09:43,445 INFO L87 Difference]: Start difference. First operand 58050 states and 84689 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-25 18:09:46,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:47,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:53,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:09:53,106 INFO L93 Difference]: Finished difference Result 121517 states and 177407 transitions. [2021-11-25 18:09:53,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:09:53,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 387 [2021-11-25 18:09:53,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:09:53,418 INFO L225 Difference]: With dead ends: 121517 [2021-11-25 18:09:53,418 INFO L226 Difference]: Without dead ends: 63496 [2021-11-25 18:09:53,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:09:53,626 INFO L933 BasicCegarLoop]: 3498 mSDtfsCounter, 1575 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 5526 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:09:53,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1575 Valid, 5526 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2021-11-25 18:09:53,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63496 states.