./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.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_f8fb64a0-8334-4313-9785-5288079bc561/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8fb64a0-8334-4313-9785-5288079bc561/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_f8fb64a0-8334-4313-9785-5288079bc561/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8fb64a0-8334-4313-9785-5288079bc561/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8fb64a0-8334-4313-9785-5288079bc561/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_f8fb64a0-8334-4313-9785-5288079bc561/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 abfdd6ea704cd13da9f6c4fa68989a6001819ce06b341c8a00315bc983ef4819 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:55:42,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:55:42,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:55:42,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:55:42,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:55:42,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:55:42,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:55:42,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:55:42,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:55:42,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:55:42,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:55:42,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:55:42,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:55:42,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:55:42,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:55:42,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:55:42,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:55:42,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:55:42,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:55:42,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:55:42,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:55:42,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:55:42,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:55:42,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:55:42,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:55:42,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:55:42,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:55:42,326 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:55:42,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:55:42,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:55:42,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:55:42,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:55:42,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:55:42,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:55:42,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:55:42,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:55:42,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:55:42,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:55:42,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:55:42,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:55:42,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:55:42,344 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8fb64a0-8334-4313-9785-5288079bc561/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 19:55:42,392 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:55:42,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:55:42,393 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:55:42,393 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:55:42,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:55:42,401 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:55:42,401 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:55:42,401 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:55:42,401 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:55:42,402 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:55:42,403 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:55:42,403 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:55:42,404 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:55:42,404 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:55:42,404 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:55:42,405 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:55:42,405 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:55:42,405 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:55:42,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:55:42,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:55:42,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:55:42,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:55:42,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:55:42,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:55:42,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:55:42,408 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:55:42,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:55:42,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:55:42,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:55:42,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:55:42,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:55:42,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:55:42,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:55:42,410 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:55:42,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:55:42,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:55:42,410 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:55:42,411 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:55:42,411 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_f8fb64a0-8334-4313-9785-5288079bc561/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8fb64a0-8334-4313-9785-5288079bc561/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abfdd6ea704cd13da9f6c4fa68989a6001819ce06b341c8a00315bc983ef4819 [2021-11-25 19:55:42,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:55:42,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:55:42,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:55:42,678 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:55:42,679 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:55:42,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8fb64a0-8334-4313-9785-5288079bc561/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-25 19:55:42,747 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8fb64a0-8334-4313-9785-5288079bc561/bin/utaipan-eEHZpOm5b7/data/c39ccad07/61e2a9c4623e4e1cbcf669052c424f54/FLAG8855aada8 [2021-11-25 19:55:43,729 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:55:43,730 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8fb64a0-8334-4313-9785-5288079bc561/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-25 19:55:43,800 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8fb64a0-8334-4313-9785-5288079bc561/bin/utaipan-eEHZpOm5b7/data/c39ccad07/61e2a9c4623e4e1cbcf669052c424f54/FLAG8855aada8 [2021-11-25 19:55:44,091 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8fb64a0-8334-4313-9785-5288079bc561/bin/utaipan-eEHZpOm5b7/data/c39ccad07/61e2a9c4623e4e1cbcf669052c424f54 [2021-11-25 19:55:44,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:55:44,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:55:44,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:55:44,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:55:44,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:55:44,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:55:44" (1/1) ... [2021-11-25 19:55:44,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@502d6590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:44, skipping insertion in model container [2021-11-25 19:55:44,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:55:44" (1/1) ... [2021-11-25 19:55:44,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:55:44,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:55:48,286 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_f8fb64a0-8334-4313-9785-5288079bc561/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422956,422969] [2021-11-25 19:55:48,289 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_f8fb64a0-8334-4313-9785-5288079bc561/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[423101,423114] [2021-11-25 19:55:48,318 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:55:48,386 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:55:48,873 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_f8fb64a0-8334-4313-9785-5288079bc561/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422956,422969] [2021-11-25 19:55:48,874 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_f8fb64a0-8334-4313-9785-5288079bc561/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[423101,423114] [2021-11-25 19:55:48,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:55:49,255 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:55:49,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:49 WrapperNode [2021-11-25 19:55:49,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:55:49,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:55:49,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:55:49,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:55:49,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:49" (1/1) ... [2021-11-25 19:55:49,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:49" (1/1) ... [2021-11-25 19:55:49,776 INFO L137 Inliner]: procedures = 556, calls = 2944, calls flagged for inlining = 291, calls inlined = 260, statements flattened = 7429 [2021-11-25 19:55:49,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:55:49,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:55:49,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:55:49,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:55:49,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:49" (1/1) ... [2021-11-25 19:55:49,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:49" (1/1) ... [2021-11-25 19:55:49,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:49" (1/1) ... [2021-11-25 19:55:49,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:49" (1/1) ... [2021-11-25 19:55:50,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:49" (1/1) ... [2021-11-25 19:55:50,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:49" (1/1) ... [2021-11-25 19:55:50,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:49" (1/1) ... [2021-11-25 19:55:50,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:55:50,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:55:50,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:55:50,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:55:50,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:49" (1/1) ... [2021-11-25 19:55:50,168 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:55:50,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8fb64a0-8334-4313-9785-5288079bc561/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:55:50,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8fb64a0-8334-4313-9785-5288079bc561/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:55:50,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8fb64a0-8334-4313-9785-5288079bc561/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:55:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-11-25 19:55:50,244 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-11-25 19:55:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 19:55:50,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 19:55:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-25 19:55:50,245 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-25 19:55:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 19:55:50,245 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 19:55:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_86 [2021-11-25 19:55:50,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_86 [2021-11-25 19:55:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 19:55:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 19:55:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-25 19:55:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-25 19:55:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 19:55:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 19:55:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 19:55:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 19:55:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_interrupt [2021-11-25 19:55:50,247 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_interrupt [2021-11-25 19:55:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-25 19:55:50,247 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-25 19:55:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 19:55:50,247 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 19:55:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 19:55:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 19:55:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 19:55:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 19:55:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 19:55:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 19:55:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 19:55:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 19:55:50,249 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-25 19:55:50,249 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-25 19:55:50,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:55:50,249 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_bcr [2021-11-25 19:55:50,249 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_bcr [2021-11-25 19:55:50,249 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 19:55:50,249 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 19:55:50,250 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 19:55:50,250 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 19:55:50,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 19:55:50,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2021-11-25 19:55:50,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2021-11-25 19:55:50,251 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 19:55:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 19:55:50,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-25 19:55:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-25 19:55:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 19:55:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 19:55:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 19:55:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_tx_ring [2021-11-25 19:55:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_tx_ring [2021-11-25 19:55:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:55:50,254 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 19:55:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 19:55:50,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-25 19:55:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-25 19:55:50,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 19:55:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 19:55:50,255 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_bcr [2021-11-25 19:55:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_bcr [2021-11-25 19:55:50,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 19:55:50,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 19:55:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 19:55:50,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 19:55:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 19:55:50,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 19:55:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 19:55:50,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 19:55:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-25 19:55:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-25 19:55:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 19:55:50,258 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 19:55:50,258 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_start [2021-11-25 19:55:50,258 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_start [2021-11-25 19:55:50,258 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-25 19:55:50,258 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-25 19:55:50,258 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~~u16~0 [2021-11-25 19:55:50,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~~u16~0 [2021-11-25 19:55:50,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:55:50,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 19:55:50,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 19:55:50,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 19:55:50,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 19:55:50,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-25 19:55:50,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-25 19:55:50,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-25 19:55:50,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-25 19:55:50,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-25 19:55:50,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-25 19:55:50,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-25 19:55:50,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-25 19:55:50,262 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_open [2021-11-25 19:55:50,262 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_open [2021-11-25 19:55:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:55:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-25 19:55:50,263 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-25 19:55:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 19:55:50,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 19:55:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 19:55:50,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 19:55:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:55:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 19:55:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:55:50,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:55:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_reset [2021-11-25 19:55:50,265 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_reset [2021-11-25 19:55:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-25 19:55:50,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-25 19:55:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-25 19:55:50,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-25 19:55:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_pcnet32_private [2021-11-25 19:55:50,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_pcnet32_private [2021-11-25 19:55:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-25 19:55:50,271 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-25 19:55:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_restart [2021-11-25 19:55:50,271 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_restart [2021-11-25 19:55:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-25 19:55:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-25 19:55:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-25 19:55:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-25 19:55:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 19:55:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 19:55:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-25 19:55:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-25 19:55:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 19:55:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 19:55:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_csr [2021-11-25 19:55:50,279 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_csr [2021-11-25 19:55:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-25 19:55:50,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-25 19:55:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 19:55:50,279 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 19:55:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_reset [2021-11-25 19:55:50,279 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_reset [2021-11-25 19:55:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-25 19:55:50,280 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-25 19:55:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:55:50,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:55:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-25 19:55:50,280 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-25 19:55:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 19:55:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 19:55:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 19:55:50,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 19:55:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_pm_resume [2021-11-25 19:55:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_pm_resume [2021-11-25 19:55:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_check_media [2021-11-25 19:55:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_check_media [2021-11-25 19:55:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_get_regs_len [2021-11-25 19:55:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_get_regs_len [2021-11-25 19:55:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 19:55:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 19:55:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 19:55:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_poll_controller [2021-11-25 19:55:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_poll_controller [2021-11-25 19:55:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_free_ring [2021-11-25 19:55:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_free_ring [2021-11-25 19:55:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-25 19:55:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-25 19:55:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 19:55:50,283 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 19:55:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-25 19:55:50,283 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-25 19:55:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 19:55:50,283 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 19:55:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-25 19:55:50,283 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-25 19:55:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2021-11-25 19:55:50,283 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2021-11-25 19:55:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_rx_ring [2021-11-25 19:55:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_rx_ring [2021-11-25 19:55:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_csr [2021-11-25 19:55:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_csr [2021-11-25 19:55:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_tx_timeout [2021-11-25 19:55:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_tx_timeout [2021-11-25 19:55:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 19:55:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 19:55:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:55:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_stop [2021-11-25 19:55:50,285 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_stop [2021-11-25 19:55:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 19:55:50,285 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 19:55:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:55:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_pcnet32_private [2021-11-25 19:55:50,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_pcnet32_private [2021-11-25 19:55:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:55:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_csr [2021-11-25 19:55:50,286 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_csr [2021-11-25 19:55:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_set_multicast_list [2021-11-25 19:55:50,286 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_set_multicast_list [2021-11-25 19:55:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-11-25 19:55:50,286 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-11-25 19:55:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 19:55:50,286 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 19:55:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2021-11-25 19:55:50,287 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2021-11-25 19:55:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 19:55:50,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 19:55:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_probe1 [2021-11-25 19:55:50,288 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_probe1 [2021-11-25 19:55:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-25 19:55:50,288 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-25 19:55:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-25 19:55:50,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-25 19:55:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_remove_one [2021-11-25 19:55:50,289 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_remove_one [2021-11-25 19:55:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2021-11-25 19:55:50,289 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2021-11-25 19:55:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2021-11-25 19:55:50,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2021-11-25 19:55:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_bcr [2021-11-25 19:55:50,289 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_bcr [2021-11-25 19:55:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-25 19:55:50,290 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-25 19:55:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-25 19:55:50,290 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-25 19:55:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 19:55:50,290 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 19:55:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_bcr [2021-11-25 19:55:50,290 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_bcr [2021-11-25 19:55:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 19:55:50,291 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 19:55:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_init_ring [2021-11-25 19:55:50,291 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_init_ring [2021-11-25 19:55:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_close [2021-11-25 19:55:50,291 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_close [2021-11-25 19:55:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-25 19:55:50,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-25 19:55:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 19:55:50,291 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 19:55:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:55:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_suspend [2021-11-25 19:55:50,292 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_suspend [2021-11-25 19:55:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 19:55:50,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 19:55:50,296 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 19:55:50,297 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 19:55:50,297 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-25 19:55:50,297 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-25 19:55:50,297 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_csr [2021-11-25 19:55:50,297 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_csr [2021-11-25 19:55:50,297 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_load_multicast [2021-11-25 19:55:50,297 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_load_multicast [2021-11-25 19:55:50,297 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-25 19:55:50,298 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-25 19:55:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_nway_reset [2021-11-25 19:55:50,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_nway_reset [2021-11-25 19:55:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 19:55:50,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 19:55:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-25 19:55:50,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-25 19:55:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 19:55:50,300 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 19:55:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-25 19:55:50,300 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-25 19:55:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-25 19:55:50,300 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-25 19:55:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:55:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-25 19:55:50,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-11-25 19:55:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-11-25 19:55:50,301 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-11-25 19:55:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 19:55:50,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 19:55:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-25 19:55:50,301 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-25 19:55:51,523 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:55:51,528 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:55:51,705 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 19:55:59,451 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 19:55:59,590 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:56:01,658 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:56:01,658 INFO L301 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-25 19:56:01,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:56:01 BoogieIcfgContainer [2021-11-25 19:56:01,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:56:01,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:56:01,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:56:01,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:56:01,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:55:44" (1/3) ... [2021-11-25 19:56:01,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1517b9c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:56:01, skipping insertion in model container [2021-11-25 19:56:01,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:49" (2/3) ... [2021-11-25 19:56:01,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1517b9c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:56:01, skipping insertion in model container [2021-11-25 19:56:01,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:56:01" (3/3) ... [2021-11-25 19:56:01,676 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-25 19:56:01,682 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:56:01,683 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:56:01,755 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:56:01,764 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 19:56:01,764 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:56:01,856 INFO L276 IsEmpty]: Start isEmpty. Operand has 2005 states, 1182 states have (on average 1.3121827411167513) internal successors, (1551), 1222 states have internal predecessors, (1551), 700 states have call successors, (700), 125 states have call predecessors, (700), 124 states have return successors, (692), 679 states have call predecessors, (692), 692 states have call successors, (692) [2021-11-25 19:56:01,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-25 19:56:01,922 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:56:01,924 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 4, 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] [2021-11-25 19:56:01,924 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:56:01,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:56:01,930 INFO L85 PathProgramCache]: Analyzing trace with hash 68276335, now seen corresponding path program 1 times [2021-11-25 19:56:01,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:56:01,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193095823] [2021-11-25 19:56:01,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:56:01,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:56:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:56:02,879 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2021-11-25 19:56:02,880 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:56:02,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193095823] [2021-11-25 19:56:02,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193095823] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:56:02,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:56:02,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:56:02,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625017711] [2021-11-25 19:56:02,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:56:02,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:56:02,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:56:02,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:56:02,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:56:02,938 INFO L87 Difference]: Start difference. First operand has 2005 states, 1182 states have (on average 1.3121827411167513) internal successors, (1551), 1222 states have internal predecessors, (1551), 700 states have call successors, (700), 125 states have call predecessors, (700), 124 states have return successors, (692), 679 states have call predecessors, (692), 692 states have call successors, (692) Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-25 19:56:07,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:56:07,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:56:07,577 INFO L93 Difference]: Finished difference Result 5464 states and 8069 transitions. [2021-11-25 19:56:07,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:56:07,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 225 [2021-11-25 19:56:07,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:56:07,637 INFO L225 Difference]: With dead ends: 5464 [2021-11-25 19:56:07,637 INFO L226 Difference]: Without dead ends: 3316 [2021-11-25 19:56:07,662 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 19:56:07,665 INFO L933 BasicCegarLoop]: 3039 mSDtfsCounter, 2164 mSDsluCounter, 2874 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2165 SdHoareTripleChecker+Valid, 5519 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:56:07,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2165 Valid, 5519 Invalid, 885 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 867 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2021-11-25 19:56:07,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3316 states. [2021-11-25 19:56:08,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3316 to 3313. [2021-11-25 19:56:08,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3313 states, 1988 states have (on average 1.3138832997987928) internal successors, (2612), 2054 states have internal predecessors, (2612), 1101 states have call successors, (1101), 223 states have call predecessors, (1101), 223 states have return successors, (1102), 1079 states have call predecessors, (1102), 1101 states have call successors, (1102) [2021-11-25 19:56:08,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3313 states to 3313 states and 4815 transitions. [2021-11-25 19:56:08,149 INFO L78 Accepts]: Start accepts. Automaton has 3313 states and 4815 transitions. Word has length 225 [2021-11-25 19:56:08,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:56:08,153 INFO L470 AbstractCegarLoop]: Abstraction has 3313 states and 4815 transitions. [2021-11-25 19:56:08,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-25 19:56:08,155 INFO L276 IsEmpty]: Start isEmpty. Operand 3313 states and 4815 transitions. [2021-11-25 19:56:08,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-25 19:56:08,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:56:08,180 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 4, 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 19:56:08,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:56:08,181 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:56:08,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:56:08,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1907440970, now seen corresponding path program 1 times [2021-11-25 19:56:08,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:56:08,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266974068] [2021-11-25 19:56:08,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:56:08,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:56:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:56:08,583 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2021-11-25 19:56:08,584 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:56:08,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266974068] [2021-11-25 19:56:08,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266974068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:56:08,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:56:08,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:56:08,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579206964] [2021-11-25 19:56:08,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:56:08,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:56:08,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:56:08,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:56:08,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:56:08,591 INFO L87 Difference]: Start difference. First operand 3313 states and 4815 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-25 19:56:11,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:56:13,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:56:13,063 INFO L93 Difference]: Finished difference Result 8470 states and 12244 transitions. [2021-11-25 19:56:13,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:56:13,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 235 [2021-11-25 19:56:13,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:56:13,116 INFO L225 Difference]: With dead ends: 8470 [2021-11-25 19:56:13,116 INFO L226 Difference]: Without dead ends: 5184 [2021-11-25 19:56:13,139 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 19:56:13,140 INFO L933 BasicCegarLoop]: 2889 mSDtfsCounter, 1856 mSDsluCounter, 2730 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1856 SdHoareTripleChecker+Valid, 5256 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:56:13,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1856 Valid, 5256 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 861 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2021-11-25 19:56:13,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5184 states. [2021-11-25 19:56:13,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5184 to 5181. [2021-11-25 19:56:13,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5181 states, 3108 states have (on average 1.308880308880309) internal successors, (4068), 3204 states have internal predecessors, (4068), 1691 states have call successors, (1691), 382 states have call predecessors, (1691), 381 states have return successors, (1698), 1650 states have call predecessors, (1698), 1691 states have call successors, (1698) [2021-11-25 19:56:13,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5181 states to 5181 states and 7457 transitions. [2021-11-25 19:56:13,496 INFO L78 Accepts]: Start accepts. Automaton has 5181 states and 7457 transitions. Word has length 235 [2021-11-25 19:56:13,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:56:13,497 INFO L470 AbstractCegarLoop]: Abstraction has 5181 states and 7457 transitions. [2021-11-25 19:56:13,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-25 19:56:13,498 INFO L276 IsEmpty]: Start isEmpty. Operand 5181 states and 7457 transitions. [2021-11-25 19:56:13,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-11-25 19:56:13,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:56:13,513 INFO L514 BasicCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 5, 5, 4, 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] [2021-11-25 19:56:13,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:56:13,513 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:56:13,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:56:13,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1190000898, now seen corresponding path program 1 times [2021-11-25 19:56:13,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:56:13,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362223255] [2021-11-25 19:56:13,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:56:13,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:56:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:56:14,007 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 784 trivial. 0 not checked. [2021-11-25 19:56:14,007 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:56:14,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362223255] [2021-11-25 19:56:14,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362223255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:56:14,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:56:14,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:56:14,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728777891] [2021-11-25 19:56:14,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:56:14,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:56:14,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:56:14,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:56:14,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:56:14,014 INFO L87 Difference]: Start difference. First operand 5181 states and 7457 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-25 19:56:16,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:56:18,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:56:18,710 INFO L93 Difference]: Finished difference Result 12273 states and 17683 transitions. [2021-11-25 19:56:18,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:56:18,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 274 [2021-11-25 19:56:18,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:56:18,785 INFO L225 Difference]: With dead ends: 12273 [2021-11-25 19:56:18,785 INFO L226 Difference]: Without dead ends: 7119 [2021-11-25 19:56:18,821 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 19:56:18,826 INFO L933 BasicCegarLoop]: 3490 mSDtfsCounter, 1975 mSDsluCounter, 2774 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1976 SdHoareTripleChecker+Valid, 5872 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:56:18,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1976 Valid, 5872 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1022 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2021-11-25 19:56:18,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7119 states. [2021-11-25 19:56:19,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7119 to 7115. [2021-11-25 19:56:19,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7115 states, 4286 states have (on average 1.3135790947270183) internal successors, (5630), 4418 states have internal predecessors, (5630), 2297 states have call successors, (2297), 532 states have call predecessors, (2297), 531 states have return successors, (2306), 2241 states have call predecessors, (2306), 2297 states have call successors, (2306) [2021-11-25 19:56:19,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7115 states to 7115 states and 10233 transitions. [2021-11-25 19:56:19,357 INFO L78 Accepts]: Start accepts. Automaton has 7115 states and 10233 transitions. Word has length 274 [2021-11-25 19:56:19,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:56:19,359 INFO L470 AbstractCegarLoop]: Abstraction has 7115 states and 10233 transitions. [2021-11-25 19:56:19,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-25 19:56:19,360 INFO L276 IsEmpty]: Start isEmpty. Operand 7115 states and 10233 transitions. [2021-11-25 19:56:19,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2021-11-25 19:56:19,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:56:19,479 INFO L514 BasicCegarLoop]: trace histogram [18, 15, 15, 15, 15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:56:19,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:56:19,480 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:56:19,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:56:19,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1754214073, now seen corresponding path program 1 times [2021-11-25 19:56:19,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:56:19,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216703098] [2021-11-25 19:56:19,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:56:19,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:56:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:56:19,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1004 trivial. 0 not checked. [2021-11-25 19:56:19,917 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:56:19,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216703098] [2021-11-25 19:56:19,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216703098] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:56:19,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:56:19,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:56:19,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255475596] [2021-11-25 19:56:19,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:56:19,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:56:19,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:56:19,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:56:19,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:56:19,923 INFO L87 Difference]: Start difference. First operand 7115 states and 10233 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-25 19:56:22,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:56:23,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:56:23,792 INFO L93 Difference]: Finished difference Result 14096 states and 20164 transitions. [2021-11-25 19:56:23,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:56:23,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 355 [2021-11-25 19:56:23,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:56:23,864 INFO L225 Difference]: With dead ends: 14096 [2021-11-25 19:56:23,864 INFO L226 Difference]: Without dead ends: 7008 [2021-11-25 19:56:23,910 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 19:56:23,915 INFO L933 BasicCegarLoop]: 2616 mSDtfsCounter, 2616 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2617 SdHoareTripleChecker+Valid, 3346 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:56:23,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2617 Valid, 3346 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 528 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-11-25 19:56:23,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7008 states. [2021-11-25 19:56:24,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7008 to 7006. [2021-11-25 19:56:24,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7006 states, 4187 states have (on average 1.29997611655123) internal successors, (5443), 4315 states have internal predecessors, (5443), 2258 states have call successors, (2258), 560 states have call predecessors, (2258), 560 states have return successors, (2263), 2203 states have call predecessors, (2263), 2258 states have call successors, (2263) [2021-11-25 19:56:24,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7006 states to 7006 states and 9964 transitions. [2021-11-25 19:56:24,529 INFO L78 Accepts]: Start accepts. Automaton has 7006 states and 9964 transitions. Word has length 355 [2021-11-25 19:56:24,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:56:24,530 INFO L470 AbstractCegarLoop]: Abstraction has 7006 states and 9964 transitions. [2021-11-25 19:56:24,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-25 19:56:24,530 INFO L276 IsEmpty]: Start isEmpty. Operand 7006 states and 9964 transitions. [2021-11-25 19:56:24,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-11-25 19:56:24,550 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:56:24,551 INFO L514 BasicCegarLoop]: trace histogram [19, 13, 13, 13, 13, 13, 13, 9, 9, 4, 3, 3, 3, 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] [2021-11-25 19:56:24,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 19:56:24,552 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:56:24,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:56:24,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1520747626, now seen corresponding path program 1 times [2021-11-25 19:56:24,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:56:24,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037684315] [2021-11-25 19:56:24,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:56:24,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:56:24,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:56:24,969 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 956 trivial. 0 not checked. [2021-11-25 19:56:24,969 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:56:24,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037684315] [2021-11-25 19:56:24,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037684315] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:56:24,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:56:24,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:56:24,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126663822] [2021-11-25 19:56:24,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:56:24,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:56:24,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:56:24,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:56:24,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:56:24,973 INFO L87 Difference]: Start difference. First operand 7006 states and 9964 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-25 19:56:27,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:56:29,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:56:29,074 INFO L93 Difference]: Finished difference Result 14041 states and 20014 transitions. [2021-11-25 19:56:29,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:56:29,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 336 [2021-11-25 19:56:29,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:56:29,154 INFO L225 Difference]: With dead ends: 14041 [2021-11-25 19:56:29,154 INFO L226 Difference]: Without dead ends: 7062 [2021-11-25 19:56:29,194 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 19:56:29,198 INFO L933 BasicCegarLoop]: 2401 mSDtfsCounter, 8 mSDsluCounter, 2794 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4793 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:56:29,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 4793 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 814 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-11-25 19:56:29,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7062 states. [2021-11-25 19:56:29,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7062 to 7010. [2021-11-25 19:56:29,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7010 states, 4191 states have (on average 1.299689811500835) internal successors, (5447), 4319 states have internal predecessors, (5447), 2258 states have call successors, (2258), 560 states have call predecessors, (2258), 560 states have return successors, (2263), 2203 states have call predecessors, (2263), 2258 states have call successors, (2263) [2021-11-25 19:56:29,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7010 states to 7010 states and 9968 transitions. [2021-11-25 19:56:29,855 INFO L78 Accepts]: Start accepts. Automaton has 7010 states and 9968 transitions. Word has length 336 [2021-11-25 19:56:29,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:56:29,861 INFO L470 AbstractCegarLoop]: Abstraction has 7010 states and 9968 transitions. [2021-11-25 19:56:29,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-25 19:56:29,861 INFO L276 IsEmpty]: Start isEmpty. Operand 7010 states and 9968 transitions. [2021-11-25 19:56:29,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2021-11-25 19:56:29,882 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:56:29,882 INFO L514 BasicCegarLoop]: trace histogram [19, 13, 13, 13, 13, 13, 13, 9, 9, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:56:29,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 19:56:29,883 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:56:29,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:56:29,884 INFO L85 PathProgramCache]: Analyzing trace with hash 183295175, now seen corresponding path program 1 times [2021-11-25 19:56:29,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:56:29,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688411671] [2021-11-25 19:56:29,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:56:29,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:56:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:56:30,388 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 948 trivial. 0 not checked. [2021-11-25 19:56:30,388 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:56:30,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688411671] [2021-11-25 19:56:30,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688411671] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:56:30,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:56:30,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:56:30,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414935090] [2021-11-25 19:56:30,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:56:30,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:56:30,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:56:30,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:56:30,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:56:30,393 INFO L87 Difference]: Start difference. First operand 7010 states and 9968 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-25 19:56:33,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:56:35,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:56:35,546 INFO L93 Difference]: Finished difference Result 15660 states and 22288 transitions. [2021-11-25 19:56:35,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:56:35,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 354 [2021-11-25 19:56:35,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:56:35,599 INFO L225 Difference]: With dead ends: 15660 [2021-11-25 19:56:35,599 INFO L226 Difference]: Without dead ends: 8677 [2021-11-25 19:56:35,628 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 19:56:35,630 INFO L933 BasicCegarLoop]: 3878 mSDtfsCounter, 1983 mSDsluCounter, 2565 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1984 SdHoareTripleChecker+Valid, 6091 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:56:35,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1984 Valid, 6091 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1090 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-11-25 19:56:35,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8677 states. [2021-11-25 19:56:36,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8677 to 8673. [2021-11-25 19:56:36,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8673 states, 5201 states have (on average 1.3035954624110748) internal successors, (6780), 5361 states have internal predecessors, (6780), 2773 states have call successors, (2773), 698 states have call predecessors, (2773), 698 states have return successors, (2778), 2705 states have call predecessors, (2778), 2773 states have call successors, (2778) [2021-11-25 19:56:36,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8673 states to 8673 states and 12331 transitions. [2021-11-25 19:56:36,267 INFO L78 Accepts]: Start accepts. Automaton has 8673 states and 12331 transitions. Word has length 354 [2021-11-25 19:56:36,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:56:36,268 INFO L470 AbstractCegarLoop]: Abstraction has 8673 states and 12331 transitions. [2021-11-25 19:56:36,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-25 19:56:36,269 INFO L276 IsEmpty]: Start isEmpty. Operand 8673 states and 12331 transitions. [2021-11-25 19:56:36,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2021-11-25 19:56:36,290 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:56:36,290 INFO L514 BasicCegarLoop]: trace histogram [21, 13, 13, 13, 13, 13, 13, 11, 11, 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, 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] [2021-11-25 19:56:36,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 19:56:36,291 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:56:36,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:56:36,292 INFO L85 PathProgramCache]: Analyzing trace with hash 561940223, now seen corresponding path program 1 times [2021-11-25 19:56:36,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:56:36,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923907384] [2021-11-25 19:56:36,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:56:36,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:56:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:56:36,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1110 trivial. 0 not checked. [2021-11-25 19:56:36,810 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:56:36,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923907384] [2021-11-25 19:56:36,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923907384] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:56:36,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:56:36,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:56:36,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023821560] [2021-11-25 19:56:36,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:56:36,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:56:36,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:56:36,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:56:36,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:56:36,814 INFO L87 Difference]: Start difference. First operand 8673 states and 12331 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2021-11-25 19:56:39,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:56:41,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:56:41,644 INFO L93 Difference]: Finished difference Result 18967 states and 27003 transitions. [2021-11-25 19:56:41,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:56:41,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 397 [2021-11-25 19:56:41,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:56:41,703 INFO L225 Difference]: With dead ends: 18967 [2021-11-25 19:56:41,703 INFO L226 Difference]: Without dead ends: 10321 [2021-11-25 19:56:41,734 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 19:56:41,735 INFO L933 BasicCegarLoop]: 3413 mSDtfsCounter, 1793 mSDsluCounter, 2747 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1793 SdHoareTripleChecker+Valid, 5769 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:56:41,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1793 Valid, 5769 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1024 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2021-11-25 19:56:41,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10321 states. [2021-11-25 19:56:42,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10321 to 10317. [2021-11-25 19:56:42,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10317 states, 6205 states have (on average 1.3070104754230458) internal successors, (8110), 6397 states have internal predecessors, (8110), 3284 states have call successors, (3284), 827 states have call predecessors, (3284), 827 states have return successors, (3289), 3203 states have call predecessors, (3289), 3284 states have call successors, (3289) [2021-11-25 19:56:42,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10317 states to 10317 states and 14683 transitions. [2021-11-25 19:56:42,331 INFO L78 Accepts]: Start accepts. Automaton has 10317 states and 14683 transitions. Word has length 397 [2021-11-25 19:56:42,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:56:42,334 INFO L470 AbstractCegarLoop]: Abstraction has 10317 states and 14683 transitions. [2021-11-25 19:56:42,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2021-11-25 19:56:42,334 INFO L276 IsEmpty]: Start isEmpty. Operand 10317 states and 14683 transitions. [2021-11-25 19:56:42,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2021-11-25 19:56:42,363 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:56:42,364 INFO L514 BasicCegarLoop]: trace histogram [23, 13, 13, 13, 13, 13, 13, 12, 12, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:56:42,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 19:56:42,365 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:56:42,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:56:42,366 INFO L85 PathProgramCache]: Analyzing trace with hash -232926983, now seen corresponding path program 1 times [2021-11-25 19:56:42,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:56:42,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144376412] [2021-11-25 19:56:42,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:56:42,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:56:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:56:43,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1303 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2021-11-25 19:56:43,029 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:56:43,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144376412] [2021-11-25 19:56:43,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144376412] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:56:43,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:56:43,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:56:43,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19700602] [2021-11-25 19:56:43,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:56:43,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:56:43,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:56:43,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:56:43,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:56:43,033 INFO L87 Difference]: Start difference. First operand 10317 states and 14683 transitions. Second operand has 5 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-25 19:56:46,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:56:48,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:56:48,272 INFO L93 Difference]: Finished difference Result 20625 states and 29430 transitions. [2021-11-25 19:56:48,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:56:48,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 433 [2021-11-25 19:56:48,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:56:48,344 INFO L225 Difference]: With dead ends: 20625 [2021-11-25 19:56:48,344 INFO L226 Difference]: Without dead ends: 10335 [2021-11-25 19:56:48,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:56:48,393 INFO L933 BasicCegarLoop]: 2395 mSDtfsCounter, 6 mSDsluCounter, 8392 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 9576 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:56:48,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 9576 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1627 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-11-25 19:56:48,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10335 states. [2021-11-25 19:56:48,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10335 to 10335. [2021-11-25 19:56:48,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10335 states, 6219 states have (on average 1.3059977488342178) internal successors, (8122), 6411 states have internal predecessors, (8122), 3283 states have call successors, (3283), 832 states have call predecessors, (3283), 832 states have return successors, (3288), 3202 states have call predecessors, (3288), 3283 states have call successors, (3288) [2021-11-25 19:56:48,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10335 states to 10335 states and 14693 transitions. [2021-11-25 19:56:48,992 INFO L78 Accepts]: Start accepts. Automaton has 10335 states and 14693 transitions. Word has length 433 [2021-11-25 19:56:48,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:56:48,993 INFO L470 AbstractCegarLoop]: Abstraction has 10335 states and 14693 transitions. [2021-11-25 19:56:48,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-25 19:56:48,994 INFO L276 IsEmpty]: Start isEmpty. Operand 10335 states and 14693 transitions. [2021-11-25 19:56:49,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2021-11-25 19:56:49,020 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:56:49,020 INFO L514 BasicCegarLoop]: trace histogram [22, 15, 15, 15, 15, 15, 15, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-25 19:56:49,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 19:56:49,021 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:56:49,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:56:49,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1215264771, now seen corresponding path program 1 times [2021-11-25 19:56:49,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:56:49,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35247771] [2021-11-25 19:56:49,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:56:49,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:56:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:56:49,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1292 trivial. 0 not checked. [2021-11-25 19:56:49,438 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:56:49,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35247771] [2021-11-25 19:56:49,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35247771] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:56:49,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:56:49,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:56:49,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126366995] [2021-11-25 19:56:49,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:56:49,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:56:49,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:56:49,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:56:49,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:56:49,442 INFO L87 Difference]: Start difference. First operand 10335 states and 14693 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-25 19:56:52,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:56:53,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:56:53,747 INFO L93 Difference]: Finished difference Result 20663 states and 29383 transitions. [2021-11-25 19:56:53,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:56:53,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 450 [2021-11-25 19:56:53,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:56:53,804 INFO L225 Difference]: With dead ends: 20663 [2021-11-25 19:56:53,804 INFO L226 Difference]: Without dead ends: 10355 [2021-11-25 19:56:53,844 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 19:56:53,845 INFO L933 BasicCegarLoop]: 2397 mSDtfsCounter, 7 mSDsluCounter, 2781 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4783 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:56:53,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 4783 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 821 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-11-25 19:56:53,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10355 states. [2021-11-25 19:56:54,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10355 to 10341. [2021-11-25 19:56:54,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10341 states, 6225 states have (on average 1.30570281124498) internal successors, (8128), 6417 states have internal predecessors, (8128), 3283 states have call successors, (3283), 832 states have call predecessors, (3283), 832 states have return successors, (3288), 3202 states have call predecessors, (3288), 3283 states have call successors, (3288) [2021-11-25 19:56:54,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10341 states to 10341 states and 14699 transitions. [2021-11-25 19:56:54,370 INFO L78 Accepts]: Start accepts. Automaton has 10341 states and 14699 transitions. Word has length 450 [2021-11-25 19:56:54,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:56:54,371 INFO L470 AbstractCegarLoop]: Abstraction has 10341 states and 14699 transitions. [2021-11-25 19:56:54,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-25 19:56:54,372 INFO L276 IsEmpty]: Start isEmpty. Operand 10341 states and 14699 transitions. [2021-11-25 19:56:54,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2021-11-25 19:56:54,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:56:54,393 INFO L514 BasicCegarLoop]: trace histogram [22, 15, 15, 15, 15, 15, 15, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:56:54,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 19:56:54,393 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:56:54,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:56:54,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1211240016, now seen corresponding path program 1 times [2021-11-25 19:56:54,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:56:54,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541180355] [2021-11-25 19:56:54,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:56:54,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:56:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:56:55,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1316 trivial. 0 not checked. [2021-11-25 19:56:55,390 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:56:55,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541180355] [2021-11-25 19:56:55,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541180355] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:56:55,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081109479] [2021-11-25 19:56:55,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:56:55,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:56:55,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8fb64a0-8334-4313-9785-5288079bc561/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:56:55,397 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8fb64a0-8334-4313-9785-5288079bc561/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:56:55,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8fb64a0-8334-4313-9785-5288079bc561/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:56:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:56:57,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 5412 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 19:56:57,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:56:58,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2021-11-25 19:56:58,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:56:59,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2021-11-25 19:56:59,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081109479] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:56:59,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1547182910] [2021-11-25 19:56:59,669 INFO L159 IcfgInterpreter]: Started Sifa with 230 locations of interest [2021-11-25 19:56:59,669 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:56:59,677 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:56:59,683 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:56:59,683 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:00:34,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:00:34,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:00:48,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:00:48,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:00:48,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:00:49,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:00:55,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:00:55,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:00:55,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:00:55,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:01:18,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:01:18,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:01:18,745 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:01:18,755 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:01:23,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:01:23,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:01:23,705 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:01:23,721 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:01:41,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:01:41,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:01:41,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:01:41,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:02:41,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:02:41,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:02:42,151 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:42,163 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:46,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:02:46,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:02:46,885 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:46,892 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:04:06,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:04:06,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:04:07,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:04:07,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:05:37,200 INFO L197 IcfgInterpreter]: Interpreting procedure __request_region with input of size 349 for LOIs [2021-11-25 20:05:38,279 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_filter_positive_int with input of size 326 for LOIs [2021-11-25 20:05:39,543 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 591 for LOIs [2021-11-25 20:05:46,134 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_xmalloc with input of size 614 for LOIs [2021-11-25 20:05:49,914 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:05:49,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1008 treesize of output 1015 [2021-11-25 20:05:50,414 INFO L354 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2021-11-25 20:05:50,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 1004 treesize of output 1015 [2021-11-25 20:05:55,932 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:05:55,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1008 treesize of output 1015 [2021-11-25 20:05:56,430 INFO L354 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2021-11-25 20:05:56,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 1004 treesize of output 1015 [2021-11-25 20:06:05,227 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:06:05,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1008 treesize of output 1015 [2021-11-25 20:06:05,739 INFO L354 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2021-11-25 20:06:05,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 1004 treesize of output 1015 [2021-11-25 20:06:12,030 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_err with input of size 314 for LOIs [2021-11-25 20:06:12,081 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_assume with input of size 1 for LOIs [2021-11-25 20:06:12,083 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_undef_int with input of size 572 for LOIs [2021-11-25 20:06:12,448 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:07:38,216 WARN L227 SmtUtils]: Spent 1.42m on a formula simplification that was a NOOP. DAG size: 3020 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 20:07:53,216 WARN L227 SmtUtils]: Spent 6.16s on a formula simplification. DAG size of input: 572 DAG size of output: 386 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 20:07:59,844 WARN L227 SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 580 DAG size of output: 394 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 20:08:05,731 WARN L227 SmtUtils]: Spent 5.46s on a formula simplification. DAG size of input: 601 DAG size of output: 346 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)