./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 aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70277b5d-50f8-4748-beb4-a9301651c377/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70277b5d-50f8-4748-beb4-a9301651c377/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70277b5d-50f8-4748-beb4-a9301651c377/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70277b5d-50f8-4748-beb4-a9301651c377/bin/utaipan-EQgc7hIp5V/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_70277b5d-50f8-4748-beb4-a9301651c377/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70277b5d-50f8-4748-beb4-a9301651c377/bin/utaipan-EQgc7hIp5V --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 0.2.1-dev-aef121e [2021-11-23 03:22:34,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:22:34,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:22:34,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:22:34,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:22:34,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:22:34,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:22:34,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:22:34,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:22:34,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:22:34,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:22:34,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:22:34,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:22:34,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:22:34,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:22:34,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:22:34,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:22:34,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:22:34,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:22:34,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:22:34,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:22:34,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:22:34,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:22:34,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:22:34,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:22:34,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:22:34,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:22:34,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:22:34,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:22:34,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:22:34,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:22:34,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:22:34,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:22:34,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:22:34,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:22:34,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:22:34,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:22:34,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:22:34,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:22:34,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:22:34,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:22:34,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70277b5d-50f8-4748-beb4-a9301651c377/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 03:22:34,521 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:22:34,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:22:34,522 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:22:34,522 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:22:34,523 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:22:34,527 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:22:34,527 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:22:34,527 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:22:34,527 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:22:34,528 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:22:34,528 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:22:34,528 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:22:34,528 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:22:34,528 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:22:34,529 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:22:34,529 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:22:34,529 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:22:34,529 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:22:34,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:22:34,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:22:34,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:22:34,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:22:34,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:22:34,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:22:34,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:22:34,531 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:22:34,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:22:34,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:22:34,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:22:34,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:22:34,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:22:34,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:22:34,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:22:34,533 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:22:34,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:22:34,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:22:34,533 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:22:34,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:22:34,534 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_70277b5d-50f8-4748-beb4-a9301651c377/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70277b5d-50f8-4748-beb4-a9301651c377/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abfdd6ea704cd13da9f6c4fa68989a6001819ce06b341c8a00315bc983ef4819 [2021-11-23 03:22:34,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:22:34,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:22:34,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:22:34,883 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:22:34,884 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:22:34,885 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70277b5d-50f8-4748-beb4-a9301651c377/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-23 03:22:34,949 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70277b5d-50f8-4748-beb4-a9301651c377/bin/utaipan-EQgc7hIp5V/data/c8af82446/5962b8aff3b5471c9ef141b3a97ac6d8/FLAG69a25b662 [2021-11-23 03:22:35,911 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:22:35,912 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70277b5d-50f8-4748-beb4-a9301651c377/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-23 03:22:35,990 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70277b5d-50f8-4748-beb4-a9301651c377/bin/utaipan-EQgc7hIp5V/data/c8af82446/5962b8aff3b5471c9ef141b3a97ac6d8/FLAG69a25b662 [2021-11-23 03:22:36,311 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70277b5d-50f8-4748-beb4-a9301651c377/bin/utaipan-EQgc7hIp5V/data/c8af82446/5962b8aff3b5471c9ef141b3a97ac6d8 [2021-11-23 03:22:36,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:22:36,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:22:36,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:22:36,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:22:36,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:22:36,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:22:36" (1/1) ... [2021-11-23 03:22:36,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c3a2fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:36, skipping insertion in model container [2021-11-23 03:22:36,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:22:36" (1/1) ... [2021-11-23 03:22:36,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:22:36,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:22:40,585 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_70277b5d-50f8-4748-beb4-a9301651c377/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422956,422969] [2021-11-23 03:22:40,589 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_70277b5d-50f8-4748-beb4-a9301651c377/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[423101,423114] [2021-11-23 03:22:40,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:22:40,685 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:22:41,192 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_70277b5d-50f8-4748-beb4-a9301651c377/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422956,422969] [2021-11-23 03:22:41,192 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_70277b5d-50f8-4748-beb4-a9301651c377/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[423101,423114] [2021-11-23 03:22:41,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:22:41,547 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:22:41,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:41 WrapperNode [2021-11-23 03:22:41,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:22:41,549 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:22:41,549 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:22:41,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:22:41,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:41" (1/1) ... [2021-11-23 03:22:41,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:41" (1/1) ... [2021-11-23 03:22:41,955 INFO L137 Inliner]: procedures = 556, calls = 2944, calls flagged for inlining = 291, calls inlined = 260, statements flattened = 7429 [2021-11-23 03:22:41,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:22:41,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:22:41,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:22:41,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:22:41,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:41" (1/1) ... [2021-11-23 03:22:41,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:41" (1/1) ... [2021-11-23 03:22:42,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:41" (1/1) ... [2021-11-23 03:22:42,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:41" (1/1) ... [2021-11-23 03:22:42,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:41" (1/1) ... [2021-11-23 03:22:42,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:41" (1/1) ... [2021-11-23 03:22:42,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:41" (1/1) ... [2021-11-23 03:22:42,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:22:42,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:22:42,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:22:42,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:22:42,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:41" (1/1) ... [2021-11-23 03:22:42,425 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:22:42,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70277b5d-50f8-4748-beb4-a9301651c377/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:22:42,453 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70277b5d-50f8-4748-beb4-a9301651c377/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:22:42,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70277b5d-50f8-4748-beb4-a9301651c377/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:22:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-11-23 03:22:42,504 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-11-23 03:22:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 03:22:42,504 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 03:22:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-23 03:22:42,505 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-23 03:22:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-23 03:22:42,505 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-23 03:22:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_86 [2021-11-23 03:22:42,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_86 [2021-11-23 03:22:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 03:22:42,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 03:22:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-23 03:22:42,506 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-23 03:22:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 03:22:42,506 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 03:22:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-23 03:22:42,507 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-23 03:22:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_interrupt [2021-11-23 03:22:42,507 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_interrupt [2021-11-23 03:22:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-23 03:22:42,507 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-23 03:22:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-23 03:22:42,508 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-23 03:22:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 03:22:42,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 03:22:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-23 03:22:42,508 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-23 03:22:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-23 03:22:42,509 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-23 03:22:42,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 03:22:42,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 03:22:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-23 03:22:42,510 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-23 03:22:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:22:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_bcr [2021-11-23 03:22:42,511 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_bcr [2021-11-23 03:22:42,511 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 03:22:42,511 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 03:22:42,511 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 03:22:42,511 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 03:22:42,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 03:22:42,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2021-11-23 03:22:42,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2021-11-23 03:22:42,512 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 03:22:42,513 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 03:22:42,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-23 03:22:42,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-23 03:22:42,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 03:22:42,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 03:22:42,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 03:22:42,515 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_tx_ring [2021-11-23 03:22:42,515 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_tx_ring [2021-11-23 03:22:42,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:22:42,515 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 03:22:42,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 03:22:42,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-23 03:22:42,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-23 03:22:42,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 03:22:42,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 03:22:42,517 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_bcr [2021-11-23 03:22:42,517 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_bcr [2021-11-23 03:22:42,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-23 03:22:42,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-23 03:22:42,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-23 03:22:42,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-23 03:22:42,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 03:22:42,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 03:22:42,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 03:22:42,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 03:22:42,519 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-23 03:22:42,519 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-23 03:22:42,519 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 03:22:42,519 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 03:22:42,519 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_start [2021-11-23 03:22:42,520 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_start [2021-11-23 03:22:42,520 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-23 03:22:42,520 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-23 03:22:42,520 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~~u16~0 [2021-11-23 03:22:42,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~~u16~0 [2021-11-23 03:22:42,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:22:42,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-23 03:22:42,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-23 03:22:42,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-23 03:22:42,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-23 03:22:42,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-23 03:22:42,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-23 03:22:42,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-23 03:22:42,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-23 03:22:42,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-23 03:22:42,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-23 03:22:42,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-23 03:22:42,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-23 03:22:42,525 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_open [2021-11-23 03:22:42,525 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_open [2021-11-23 03:22:42,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:22:42,525 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-23 03:22:42,525 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-23 03:22:42,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 03:22:42,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 03:22:42,526 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 03:22:42,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 03:22:42,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:22:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 03:22:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:22:42,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:22:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_reset [2021-11-23 03:22:42,527 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_reset [2021-11-23 03:22:42,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-23 03:22:42,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-23 03:22:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-23 03:22:42,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-23 03:22:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_pcnet32_private [2021-11-23 03:22:42,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_pcnet32_private [2021-11-23 03:22:42,533 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-23 03:22:42,534 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-23 03:22:42,534 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_restart [2021-11-23 03:22:42,534 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_restart [2021-11-23 03:22:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-23 03:22:42,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-23 03:22:42,542 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-23 03:22:42,542 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-23 03:22:42,542 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 03:22:42,542 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 03:22:42,542 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-23 03:22:42,542 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-23 03:22:42,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-23 03:22:42,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-23 03:22:42,543 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_csr [2021-11-23 03:22:42,543 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_csr [2021-11-23 03:22:42,543 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-23 03:22:42,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-23 03:22:42,543 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-23 03:22:42,543 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-23 03:22:42,544 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_reset [2021-11-23 03:22:42,544 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_reset [2021-11-23 03:22:42,544 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-23 03:22:42,544 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-23 03:22:42,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:22:42,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:22:42,544 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-23 03:22:42,544 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-23 03:22:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 03:22:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 03:22:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 03:22:42,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 03:22:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_pm_resume [2021-11-23 03:22:42,545 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_pm_resume [2021-11-23 03:22:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_check_media [2021-11-23 03:22:42,546 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_check_media [2021-11-23 03:22:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_get_regs_len [2021-11-23 03:22:42,546 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_get_regs_len [2021-11-23 03:22:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 03:22:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-23 03:22:42,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-23 03:22:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_poll_controller [2021-11-23 03:22:42,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_poll_controller [2021-11-23 03:22:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_free_ring [2021-11-23 03:22:42,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_free_ring [2021-11-23 03:22:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-23 03:22:42,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-23 03:22:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:22:42,547 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:22:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-23 03:22:42,548 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-23 03:22:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-23 03:22:42,548 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-23 03:22:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-23 03:22:42,549 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-23 03:22:42,549 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2021-11-23 03:22:42,549 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2021-11-23 03:22:42,549 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_rx_ring [2021-11-23 03:22:42,549 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_rx_ring [2021-11-23 03:22:42,549 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_csr [2021-11-23 03:22:42,549 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_csr [2021-11-23 03:22:42,550 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_tx_timeout [2021-11-23 03:22:42,550 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_tx_timeout [2021-11-23 03:22:42,550 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-23 03:22:42,550 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-23 03:22:42,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:22:42,550 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_stop [2021-11-23 03:22:42,550 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_stop [2021-11-23 03:22:42,551 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-23 03:22:42,551 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-23 03:22:42,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:22:42,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_pcnet32_private [2021-11-23 03:22:42,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_pcnet32_private [2021-11-23 03:22:42,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 03:22:42,551 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_csr [2021-11-23 03:22:42,552 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_csr [2021-11-23 03:22:42,552 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_set_multicast_list [2021-11-23 03:22:42,552 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_set_multicast_list [2021-11-23 03:22:42,552 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-11-23 03:22:42,552 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-11-23 03:22:42,552 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 03:22:42,552 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 03:22:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2021-11-23 03:22:42,553 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2021-11-23 03:22:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 03:22:42,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 03:22:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_probe1 [2021-11-23 03:22:42,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_probe1 [2021-11-23 03:22:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-23 03:22:42,553 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-23 03:22:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-23 03:22:42,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-23 03:22:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_remove_one [2021-11-23 03:22:42,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_remove_one [2021-11-23 03:22:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2021-11-23 03:22:42,554 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2021-11-23 03:22:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2021-11-23 03:22:42,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2021-11-23 03:22:42,555 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_bcr [2021-11-23 03:22:42,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_bcr [2021-11-23 03:22:42,555 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-23 03:22:42,555 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-23 03:22:42,555 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-23 03:22:42,555 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-23 03:22:42,555 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 03:22:42,556 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 03:22:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_bcr [2021-11-23 03:22:42,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_bcr [2021-11-23 03:22:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 03:22:42,556 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 03:22:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_init_ring [2021-11-23 03:22:42,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_init_ring [2021-11-23 03:22:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_close [2021-11-23 03:22:42,557 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_close [2021-11-23 03:22:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-23 03:22:42,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-23 03:22:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 03:22:42,557 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 03:22:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:22:42,558 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_suspend [2021-11-23 03:22:42,558 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_suspend [2021-11-23 03:22:42,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 03:22:42,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 03:22:42,563 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-23 03:22:42,563 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-23 03:22:42,563 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-23 03:22:42,563 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-23 03:22:42,563 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_csr [2021-11-23 03:22:42,563 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_csr [2021-11-23 03:22:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_load_multicast [2021-11-23 03:22:42,564 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_load_multicast [2021-11-23 03:22:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-23 03:22:42,565 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-23 03:22:42,565 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_nway_reset [2021-11-23 03:22:42,565 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_nway_reset [2021-11-23 03:22:42,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 03:22:42,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 03:22:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-23 03:22:42,566 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-23 03:22:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 03:22:42,566 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 03:22:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-23 03:22:42,566 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-23 03:22:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-23 03:22:42,567 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-23 03:22:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:22:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-23 03:22:42,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-11-23 03:22:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-11-23 03:22:42,567 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-11-23 03:22:42,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 03:22:42,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 03:22:42,568 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-23 03:22:42,568 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-23 03:22:43,768 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:22:43,774 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:22:44,079 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 03:22:52,111 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 03:22:52,229 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:22:54,207 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:22:54,207 INFO L301 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-23 03:22:54,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:22:54 BoogieIcfgContainer [2021-11-23 03:22:54,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:22:54,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:22:54,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:22:54,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:22:54,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:22:36" (1/3) ... [2021-11-23 03:22:54,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4a3ce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:22:54, skipping insertion in model container [2021-11-23 03:22:54,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:41" (2/3) ... [2021-11-23 03:22:54,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4a3ce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:22:54, skipping insertion in model container [2021-11-23 03:22:54,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:22:54" (3/3) ... [2021-11-23 03:22:54,222 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-23 03:22:54,228 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:22:54,228 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:22:54,298 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:22:54,310 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 [2021-11-23 03:22:54,310 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:22:54,389 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) [2021-11-23 03:22:54,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-23 03:22:54,441 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:22:54,442 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] [2021-11-23 03:22:54,443 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:22:54,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:22:54,450 INFO L85 PathProgramCache]: Analyzing trace with hash 68276335, now seen corresponding path program 1 times [2021-11-23 03:22:54,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:22:54,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838531283] [2021-11-23 03:22:54,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:22:54,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:22:54,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:22:55,318 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2021-11-23 03:22:55,318 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:22:55,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838531283] [2021-11-23 03:22:55,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838531283] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:22:55,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:22:55,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:22:55,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043108598] [2021-11-23 03:22:55,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:22:55,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:22:55,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:22:55,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:22:55,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:22:55,364 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) [2021-11-23 03:22:59,422 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 [] [2021-11-23 03:22:59,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:22:59,925 INFO L93 Difference]: Finished difference Result 5464 states and 8069 transitions. [2021-11-23 03:22:59,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:22:59,927 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 [2021-11-23 03:22:59,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:22:59,984 INFO L225 Difference]: With dead ends: 5464 [2021-11-23 03:22:59,984 INFO L226 Difference]: Without dead ends: 3316 [2021-11-23 03:23:00,008 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 [2021-11-23 03:23:00,012 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, 4.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:23:00,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2165 Valid, 5519 Invalid, 885 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 867 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2021-11-23 03:23:00,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3316 states. [2021-11-23 03:23:00,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3316 to 3313. [2021-11-23 03:23:00,362 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) [2021-11-23 03:23:00,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3313 states to 3313 states and 4815 transitions. [2021-11-23 03:23:00,408 INFO L78 Accepts]: Start accepts. Automaton has 3313 states and 4815 transitions. Word has length 225 [2021-11-23 03:23:00,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:23:00,409 INFO L470 AbstractCegarLoop]: Abstraction has 3313 states and 4815 transitions. [2021-11-23 03:23:00,409 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) [2021-11-23 03:23:00,410 INFO L276 IsEmpty]: Start isEmpty. Operand 3313 states and 4815 transitions. [2021-11-23 03:23:00,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-23 03:23:00,431 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:23:00,432 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] [2021-11-23 03:23:00,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:23:00,432 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:23:00,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:23:00,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1907440970, now seen corresponding path program 1 times [2021-11-23 03:23:00,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:23:00,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702313150] [2021-11-23 03:23:00,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:23:00,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:23:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:23:00,714 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2021-11-23 03:23:00,714 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:23:00,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702313150] [2021-11-23 03:23:00,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702313150] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:23:00,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:23:00,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:23:00,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473488064] [2021-11-23 03:23:00,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:23:00,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:23:00,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:23:00,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:23:00,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:23:00,719 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) [2021-11-23 03:23:03,354 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 [] [2021-11-23 03:23:05,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:23:05,317 INFO L93 Difference]: Finished difference Result 8470 states and 12244 transitions. [2021-11-23 03:23:05,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:23:05,318 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 [2021-11-23 03:23:05,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:23:05,367 INFO L225 Difference]: With dead ends: 8470 [2021-11-23 03:23:05,368 INFO L226 Difference]: Without dead ends: 5184 [2021-11-23 03:23:05,388 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 [2021-11-23 03:23:05,390 INFO L933 BasicCegarLoop]: 2889 mSDtfsCounter, 1856 mSDsluCounter, 2730 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s 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, 4.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:23:05,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1856 Valid, 5256 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 861 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2021-11-23 03:23:05,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5184 states. [2021-11-23 03:23:05,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5184 to 5181. [2021-11-23 03:23:05,685 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) [2021-11-23 03:23:05,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5181 states to 5181 states and 7457 transitions. [2021-11-23 03:23:05,738 INFO L78 Accepts]: Start accepts. Automaton has 5181 states and 7457 transitions. Word has length 235 [2021-11-23 03:23:05,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:23:05,739 INFO L470 AbstractCegarLoop]: Abstraction has 5181 states and 7457 transitions. [2021-11-23 03:23:05,740 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) [2021-11-23 03:23:05,740 INFO L276 IsEmpty]: Start isEmpty. Operand 5181 states and 7457 transitions. [2021-11-23 03:23:05,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-11-23 03:23:05,753 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:23:05,753 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] [2021-11-23 03:23:05,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:23:05,754 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:23:05,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:23:05,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1190000898, now seen corresponding path program 1 times [2021-11-23 03:23:05,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:23:05,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124236413] [2021-11-23 03:23:05,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:23:05,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:23:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:23:06,047 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 784 trivial. 0 not checked. [2021-11-23 03:23:06,047 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:23:06,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124236413] [2021-11-23 03:23:06,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124236413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:23:06,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:23:06,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:23:06,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987924372] [2021-11-23 03:23:06,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:23:06,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:23:06,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:23:06,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:23:06,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:23:06,050 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) [2021-11-23 03:23:08,854 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 [] [2021-11-23 03:23:10,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:23:10,447 INFO L93 Difference]: Finished difference Result 12273 states and 17683 transitions. [2021-11-23 03:23:10,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:23:10,448 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 [2021-11-23 03:23:10,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:23:10,595 INFO L225 Difference]: With dead ends: 12273 [2021-11-23 03:23:10,595 INFO L226 Difference]: Without dead ends: 7119 [2021-11-23 03:23:10,623 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 [2021-11-23 03:23:10,627 INFO L933 BasicCegarLoop]: 3490 mSDtfsCounter, 1975 mSDsluCounter, 2774 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 4.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:23:10,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1976 Valid, 5872 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1022 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2021-11-23 03:23:10,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7119 states. [2021-11-23 03:23:10,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7119 to 7115. [2021-11-23 03:23:10,965 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) [2021-11-23 03:23:10,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7115 states to 7115 states and 10233 transitions. [2021-11-23 03:23:11,002 INFO L78 Accepts]: Start accepts. Automaton has 7115 states and 10233 transitions. Word has length 274 [2021-11-23 03:23:11,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:23:11,003 INFO L470 AbstractCegarLoop]: Abstraction has 7115 states and 10233 transitions. [2021-11-23 03:23:11,004 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) [2021-11-23 03:23:11,004 INFO L276 IsEmpty]: Start isEmpty. Operand 7115 states and 10233 transitions. [2021-11-23 03:23:11,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2021-11-23 03:23:11,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:23:11,022 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] [2021-11-23 03:23:11,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:23:11,022 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:23:11,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:23:11,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1754214073, now seen corresponding path program 1 times [2021-11-23 03:23:11,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:23:11,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441134555] [2021-11-23 03:23:11,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:23:11,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:23:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:23:11,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1004 trivial. 0 not checked. [2021-11-23 03:23:11,393 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:23:11,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441134555] [2021-11-23 03:23:11,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441134555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:23:11,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:23:11,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:23:11,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671015537] [2021-11-23 03:23:11,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:23:11,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:23:11,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:23:11,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:23:11,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:23:11,398 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) [2021-11-23 03:23:13,991 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 [] [2021-11-23 03:23:15,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:23:15,065 INFO L93 Difference]: Finished difference Result 14096 states and 20164 transitions. [2021-11-23 03:23:15,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:23:15,182 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 [2021-11-23 03:23:15,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:23:15,239 INFO L225 Difference]: With dead ends: 14096 [2021-11-23 03:23:15,239 INFO L226 Difference]: Without dead ends: 7008 [2021-11-23 03:23:15,271 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 [2021-11-23 03:23:15,272 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, 3.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:23:15,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2617 Valid, 3346 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 528 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2021-11-23 03:23:15,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7008 states. [2021-11-23 03:23:15,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7008 to 7006. [2021-11-23 03:23:15,619 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) [2021-11-23 03:23:15,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7006 states to 7006 states and 9964 transitions. [2021-11-23 03:23:15,652 INFO L78 Accepts]: Start accepts. Automaton has 7006 states and 9964 transitions. Word has length 355 [2021-11-23 03:23:15,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:23:15,653 INFO L470 AbstractCegarLoop]: Abstraction has 7006 states and 9964 transitions. [2021-11-23 03:23:15,653 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) [2021-11-23 03:23:15,653 INFO L276 IsEmpty]: Start isEmpty. Operand 7006 states and 9964 transitions. [2021-11-23 03:23:15,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-11-23 03:23:15,668 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:23:15,669 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] [2021-11-23 03:23:15,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:23:15,669 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:23:15,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:23:15,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1520747626, now seen corresponding path program 1 times [2021-11-23 03:23:15,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:23:15,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857856970] [2021-11-23 03:23:15,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:23:15,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:23:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:23:15,973 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 956 trivial. 0 not checked. [2021-11-23 03:23:15,973 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:23:15,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857856970] [2021-11-23 03:23:15,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857856970] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:23:15,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:23:15,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:23:15,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341688563] [2021-11-23 03:23:15,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:23:15,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:23:15,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:23:15,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:23:15,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:23:15,977 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) [2021-11-23 03:23:18,727 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 [] [2021-11-23 03:23:19,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:23:19,721 INFO L93 Difference]: Finished difference Result 14041 states and 20014 transitions. [2021-11-23 03:23:19,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:23:19,722 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 [2021-11-23 03:23:19,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:23:19,777 INFO L225 Difference]: With dead ends: 14041 [2021-11-23 03:23:19,778 INFO L226 Difference]: Without dead ends: 7062 [2021-11-23 03:23:19,808 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 [2021-11-23 03:23:19,809 INFO L933 BasicCegarLoop]: 2401 mSDtfsCounter, 8 mSDsluCounter, 2794 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s 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, 3.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:23:19,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 4793 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 814 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2021-11-23 03:23:19,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7062 states. [2021-11-23 03:23:20,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7062 to 7010. [2021-11-23 03:23:20,194 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) [2021-11-23 03:23:20,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7010 states to 7010 states and 9968 transitions. [2021-11-23 03:23:20,235 INFO L78 Accepts]: Start accepts. Automaton has 7010 states and 9968 transitions. Word has length 336 [2021-11-23 03:23:20,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:23:20,240 INFO L470 AbstractCegarLoop]: Abstraction has 7010 states and 9968 transitions. [2021-11-23 03:23:20,240 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) [2021-11-23 03:23:20,240 INFO L276 IsEmpty]: Start isEmpty. Operand 7010 states and 9968 transitions. [2021-11-23 03:23:20,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2021-11-23 03:23:20,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:23:20,262 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] [2021-11-23 03:23:20,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:23:20,262 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:23:20,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:23:20,263 INFO L85 PathProgramCache]: Analyzing trace with hash 183295175, now seen corresponding path program 1 times [2021-11-23 03:23:20,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:23:20,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274856915] [2021-11-23 03:23:20,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:23:20,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:23:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:23:20,738 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 948 trivial. 0 not checked. [2021-11-23 03:23:20,738 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:23:20,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274856915] [2021-11-23 03:23:20,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274856915] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:23:20,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:23:20,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:23:20,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844581511] [2021-11-23 03:23:20,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:23:20,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:23:20,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:23:20,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:23:20,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:23:20,742 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) [2021-11-23 03:23:23,674 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 [] [2021-11-23 03:23:25,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:23:25,093 INFO L93 Difference]: Finished difference Result 15660 states and 22288 transitions. [2021-11-23 03:23:25,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:23:25,094 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 [2021-11-23 03:23:25,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:23:25,141 INFO L225 Difference]: With dead ends: 15660 [2021-11-23 03:23:25,141 INFO L226 Difference]: Without dead ends: 8677 [2021-11-23 03:23:25,168 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 [2021-11-23 03:23:25,169 INFO L933 BasicCegarLoop]: 3878 mSDtfsCounter, 1983 mSDsluCounter, 2565 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s 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, 4.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:23:25,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1984 Valid, 6091 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1090 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2021-11-23 03:23:25,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8677 states. [2021-11-23 03:23:25,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8677 to 8673. [2021-11-23 03:23:25,641 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) [2021-11-23 03:23:25,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8673 states to 8673 states and 12331 transitions. [2021-11-23 03:23:25,683 INFO L78 Accepts]: Start accepts. Automaton has 8673 states and 12331 transitions. Word has length 354 [2021-11-23 03:23:25,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:23:25,684 INFO L470 AbstractCegarLoop]: Abstraction has 8673 states and 12331 transitions. [2021-11-23 03:23:25,684 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) [2021-11-23 03:23:25,685 INFO L276 IsEmpty]: Start isEmpty. Operand 8673 states and 12331 transitions. [2021-11-23 03:23:25,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2021-11-23 03:23:25,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:23:25,704 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] [2021-11-23 03:23:25,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:23:25,705 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:23:25,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:23:25,707 INFO L85 PathProgramCache]: Analyzing trace with hash 561940223, now seen corresponding path program 1 times [2021-11-23 03:23:25,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:23:25,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118766047] [2021-11-23 03:23:25,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:23:25,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:23:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:23:26,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1110 trivial. 0 not checked. [2021-11-23 03:23:26,110 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:23:26,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118766047] [2021-11-23 03:23:26,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118766047] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:23:26,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:23:26,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:23:26,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737114015] [2021-11-23 03:23:26,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:23:26,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:23:26,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:23:26,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:23:26,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:23:26,113 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) [2021-11-23 03:23:29,019 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 [] [2021-11-23 03:23:30,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:23:30,419 INFO L93 Difference]: Finished difference Result 18967 states and 27003 transitions. [2021-11-23 03:23:30,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:23:30,420 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 [2021-11-23 03:23:30,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:23:30,473 INFO L225 Difference]: With dead ends: 18967 [2021-11-23 03:23:30,474 INFO L226 Difference]: Without dead ends: 10321 [2021-11-23 03:23:30,507 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 [2021-11-23 03:23:30,507 INFO L933 BasicCegarLoop]: 3413 mSDtfsCounter, 1793 mSDsluCounter, 2747 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s 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, 3.9s IncrementalHoareTripleChecker+Time [2021-11-23 03:23:30,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1793 Valid, 5769 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1024 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-11-23 03:23:30,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10321 states. [2021-11-23 03:23:31,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10321 to 10317. [2021-11-23 03:23:31,123 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) [2021-11-23 03:23:31,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10317 states to 10317 states and 14683 transitions. [2021-11-23 03:23:31,174 INFO L78 Accepts]: Start accepts. Automaton has 10317 states and 14683 transitions. Word has length 397 [2021-11-23 03:23:31,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:23:31,176 INFO L470 AbstractCegarLoop]: Abstraction has 10317 states and 14683 transitions. [2021-11-23 03:23:31,176 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) [2021-11-23 03:23:31,176 INFO L276 IsEmpty]: Start isEmpty. Operand 10317 states and 14683 transitions. [2021-11-23 03:23:31,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2021-11-23 03:23:31,194 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:23:31,194 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] [2021-11-23 03:23:31,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 03:23:31,195 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:23:31,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:23:31,196 INFO L85 PathProgramCache]: Analyzing trace with hash -232926983, now seen corresponding path program 1 times [2021-11-23 03:23:31,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:23:31,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413723149] [2021-11-23 03:23:31,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:23:31,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:23:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:23:31,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1303 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2021-11-23 03:23:31,780 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:23:31,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413723149] [2021-11-23 03:23:31,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413723149] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:23:31,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:23:31,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:23:31,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495231397] [2021-11-23 03:23:31,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:23:31,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:23:31,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:23:31,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:23:31,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:23:31,784 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) [2021-11-23 03:23:34,861 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 [] [2021-11-23 03:23:36,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:23:36,615 INFO L93 Difference]: Finished difference Result 20625 states and 29430 transitions. [2021-11-23 03:23:36,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:23:36,616 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 [2021-11-23 03:23:36,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:23:36,762 INFO L225 Difference]: With dead ends: 20625 [2021-11-23 03:23:36,763 INFO L226 Difference]: Without dead ends: 10335 [2021-11-23 03:23:36,791 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 [2021-11-23 03:23:36,792 INFO L933 BasicCegarLoop]: 2395 mSDtfsCounter, 6 mSDsluCounter, 8392 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s 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, 4.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:23:36,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 9576 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1627 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2021-11-23 03:23:36,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10335 states. [2021-11-23 03:23:37,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10335 to 10335. [2021-11-23 03:23:37,230 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) [2021-11-23 03:23:37,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10335 states to 10335 states and 14693 transitions. [2021-11-23 03:23:37,278 INFO L78 Accepts]: Start accepts. Automaton has 10335 states and 14693 transitions. Word has length 433 [2021-11-23 03:23:37,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:23:37,280 INFO L470 AbstractCegarLoop]: Abstraction has 10335 states and 14693 transitions. [2021-11-23 03:23:37,280 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) [2021-11-23 03:23:37,280 INFO L276 IsEmpty]: Start isEmpty. Operand 10335 states and 14693 transitions. [2021-11-23 03:23:37,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2021-11-23 03:23:37,298 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:23:37,298 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] [2021-11-23 03:23:37,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 03:23:37,299 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:23:37,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:23:37,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1215264771, now seen corresponding path program 1 times [2021-11-23 03:23:37,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:23:37,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263371710] [2021-11-23 03:23:37,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:23:37,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:23:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:23:37,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1292 trivial. 0 not checked. [2021-11-23 03:23:37,634 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:23:37,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263371710] [2021-11-23 03:23:37,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263371710] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:23:37,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:23:37,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:23:37,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127987006] [2021-11-23 03:23:37,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:23:37,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:23:37,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:23:37,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:23:37,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:23:37,637 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) [2021-11-23 03:23:40,304 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 [] [2021-11-23 03:23:41,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:23:41,249 INFO L93 Difference]: Finished difference Result 20663 states and 29383 transitions. [2021-11-23 03:23:41,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:23:41,250 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 [2021-11-23 03:23:41,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:23:41,309 INFO L225 Difference]: With dead ends: 20663 [2021-11-23 03:23:41,309 INFO L226 Difference]: Without dead ends: 10355 [2021-11-23 03:23:41,346 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 [2021-11-23 03:23:41,347 INFO L933 BasicCegarLoop]: 2397 mSDtfsCounter, 7 mSDsluCounter, 2781 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s 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, 3.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:23:41,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 4783 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 821 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2021-11-23 03:23:41,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10355 states. [2021-11-23 03:23:41,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10355 to 10341. [2021-11-23 03:23:41,857 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) [2021-11-23 03:23:41,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10341 states to 10341 states and 14699 transitions. [2021-11-23 03:23:41,905 INFO L78 Accepts]: Start accepts. Automaton has 10341 states and 14699 transitions. Word has length 450 [2021-11-23 03:23:41,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:23:41,906 INFO L470 AbstractCegarLoop]: Abstraction has 10341 states and 14699 transitions. [2021-11-23 03:23:41,906 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) [2021-11-23 03:23:41,907 INFO L276 IsEmpty]: Start isEmpty. Operand 10341 states and 14699 transitions. [2021-11-23 03:23:41,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2021-11-23 03:23:41,925 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:23:41,925 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] [2021-11-23 03:23:41,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 03:23:41,926 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:23:41,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:23:41,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1211240016, now seen corresponding path program 1 times [2021-11-23 03:23:41,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:23:41,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824295167] [2021-11-23 03:23:41,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:23:41,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:23:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:23:42,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1316 trivial. 0 not checked. [2021-11-23 03:23:42,849 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:23:42,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824295167] [2021-11-23 03:23:42,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824295167] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:23:42,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108207825] [2021-11-23 03:23:42,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:23:42,850 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:23:42,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70277b5d-50f8-4748-beb4-a9301651c377/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:23:42,855 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70277b5d-50f8-4748-beb4-a9301651c377/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:23:42,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70277b5d-50f8-4748-beb4-a9301651c377/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:23:44,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:23:44,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 4948 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:23:44,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:23:45,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2021-11-23 03:23:45,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:23:46,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2021-11-23 03:23:46,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108207825] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:23:46,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1254292184] [2021-11-23 03:23:46,261 INFO L159 IcfgInterpreter]: Started Sifa with 230 locations of interest [2021-11-23 03:23:46,261 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:23:46,267 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:23:46,273 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:23:46,273 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:27:13,856 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 [2021-11-23 03:27:13,863 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 [2021-11-23 03:27:27,664 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 [2021-11-23 03:27:27,768 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 [2021-11-23 03:27:27,910 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 [2021-11-23 03:27:28,016 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 [2021-11-23 03:27:34,492 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 [2021-11-23 03:27:34,575 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 [2021-11-23 03:27:34,736 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 [2021-11-23 03:27:34,832 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 [2021-11-23 03:27:56,869 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 [2021-11-23 03:27:56,946 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 [2021-11-23 03:27:57,143 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:27:57,152 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:28:01,494 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 [2021-11-23 03:28:01,621 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 [2021-11-23 03:28:01,826 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:28:01,839 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:28:19,081 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 [2021-11-23 03:28:19,167 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 [2021-11-23 03:28:19,697 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 [2021-11-23 03:28:19,746 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 [2021-11-23 03:29:19,512 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 [2021-11-23 03:29:19,569 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 [2021-11-23 03:29:19,816 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:29:19,821 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:29:24,388 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 [2021-11-23 03:29:24,449 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 [2021-11-23 03:29:24,607 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:29:24,614 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:30:45,336 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 [2021-11-23 03:30:45,393 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 [2021-11-23 03:30:46,012 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 [2021-11-23 03:30:46,129 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 [2021-11-23 03:32:18,465 INFO L197 IcfgInterpreter]: Interpreting procedure __request_region with input of size 349 for LOIs [2021-11-23 03:32:19,536 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_filter_positive_int with input of size 326 for LOIs [2021-11-23 03:32:20,757 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 591 for LOIs [2021-11-23 03:32:27,368 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_xmalloc with input of size 614 for LOIs [2021-11-23 03:32:31,320 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 03:32:31,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2716 treesize of output 2722 [2021-11-23 03:32:31,694 INFO L354 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2021-11-23 03:32:31,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 2729 treesize of output 2739 [2021-11-23 03:32:37,248 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 03:32:37,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2716 treesize of output 2722 [2021-11-23 03:32:37,718 INFO L354 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2021-11-23 03:32:37,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 2729 treesize of output 2739 [2021-11-23 03:32:47,720 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 03:32:47,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2716 treesize of output 2722 [2021-11-23 03:32:48,145 INFO L354 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2021-11-23 03:32:48,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 2729 treesize of output 2739 [2021-11-23 03:32:55,500 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_err with input of size 314 for LOIs [2021-11-23 03:32:55,569 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_assume with input of size 1 for LOIs [2021-11-23 03:32:55,572 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_undef_int with input of size 572 for LOIs [2021-11-23 03:32:55,997 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:34:46,335 WARN L227 SmtUtils]: Spent 1.83m 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) [2021-11-23 03:34:56,988 WARN L227 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 593 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:35:05,041 WARN L227 SmtUtils]: Spent 7.68s 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) [2021-11-23 03:35:13,205 WARN L227 SmtUtils]: Spent 7.78s 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) [2021-11-23 03:35:20,447 WARN L227 SmtUtils]: Spent 6.81s 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)