./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9786bd8b-3141-4112-9ebd-668570e4b61b/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9786bd8b-3141-4112-9ebd-668570e4b61b/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9786bd8b-3141-4112-9ebd-668570e4b61b/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9786bd8b-3141-4112-9ebd-668570e4b61b/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9786bd8b-3141-4112-9ebd-668570e4b61b/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9786bd8b-3141-4112-9ebd-668570e4b61b/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 992a1e8d90338cdabe7a076eea5104d9629c0e7f956adc14aa39d01d99d3f218 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:44:39,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:44:39,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:44:39,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:44:39,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:44:39,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:44:39,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:44:39,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:44:39,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:44:39,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:44:39,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:44:39,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:44:39,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:44:39,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:44:39,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:44:39,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:44:39,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:44:39,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:44:39,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:44:39,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:44:39,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:44:39,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:44:39,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:44:39,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:44:39,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:44:39,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:44:39,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:44:39,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:44:39,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:44:39,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:44:39,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:44:39,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:44:39,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:44:39,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:44:39,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:44:39,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:44:39,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:44:39,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:44:39,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:44:39,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:44:39,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:44:39,518 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9786bd8b-3141-4112-9ebd-668570e4b61b/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:44:39,551 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:44:39,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:44:39,552 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:44:39,552 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:44:39,553 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:44:39,553 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:44:39,553 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:44:39,554 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:44:39,554 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:44:39,554 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:44:39,555 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:44:39,555 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:44:39,555 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:44:39,555 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:44:39,556 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:44:39,556 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:44:39,556 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:44:39,557 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:44:39,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:44:39,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:44:39,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:44:39,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:44:39,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:44:39,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:44:39,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:44:39,559 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:44:39,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:44:39,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:44:39,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:44:39,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:44:39,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:44:39,560 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:44:39,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:44:39,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:44:39,561 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:44:39,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:44:39,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:44:39,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:44:39,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9786bd8b-3141-4112-9ebd-668570e4b61b/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9786bd8b-3141-4112-9ebd-668570e4b61b/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 992a1e8d90338cdabe7a076eea5104d9629c0e7f956adc14aa39d01d99d3f218 [2022-11-03 03:44:39,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:44:39,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:44:39,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:44:39,895 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:44:39,896 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:44:39,898 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9786bd8b-3141-4112-9ebd-668570e4b61b/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2022-11-03 03:44:39,970 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9786bd8b-3141-4112-9ebd-668570e4b61b/bin/utaipan-7li7fVZpFI/data/ca88b12ed/e97b7925eb35499ca53759db061c06f5/FLAG1f1979cbe [2022-11-03 03:44:41,014 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:44:41,015 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9786bd8b-3141-4112-9ebd-668570e4b61b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2022-11-03 03:44:41,078 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9786bd8b-3141-4112-9ebd-668570e4b61b/bin/utaipan-7li7fVZpFI/data/ca88b12ed/e97b7925eb35499ca53759db061c06f5/FLAG1f1979cbe [2022-11-03 03:44:41,307 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9786bd8b-3141-4112-9ebd-668570e4b61b/bin/utaipan-7li7fVZpFI/data/ca88b12ed/e97b7925eb35499ca53759db061c06f5 [2022-11-03 03:44:41,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:44:41,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:44:41,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:44:41,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:44:41,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:44:41,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:44:41" (1/1) ... [2022-11-03 03:44:41,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2746770f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:41, skipping insertion in model container [2022-11-03 03:44:41,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:44:41" (1/1) ... [2022-11-03 03:44:41,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:44:41,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:44:46,153 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_9786bd8b-3141-4112-9ebd-668570e4b61b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[492962,492975] [2022-11-03 03:44:46,156 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_9786bd8b-3141-4112-9ebd-668570e4b61b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[493107,493120] [2022-11-03 03:44:46,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:44:46,252 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:44:46,751 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_9786bd8b-3141-4112-9ebd-668570e4b61b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[492962,492975] [2022-11-03 03:44:46,751 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_9786bd8b-3141-4112-9ebd-668570e4b61b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[493107,493120] [2022-11-03 03:44:46,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:44:47,035 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:44:47,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:47 WrapperNode [2022-11-03 03:44:47,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:44:47,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:44:47,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:44:47,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:44:47,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:47" (1/1) ... [2022-11-03 03:44:47,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:47" (1/1) ... [2022-11-03 03:44:47,592 INFO L138 Inliner]: procedures = 567, calls = 5407, calls flagged for inlining = 289, calls inlined = 263, statements flattened = 11461 [2022-11-03 03:44:47,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:44:47,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:44:47,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:44:47,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:44:47,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:47" (1/1) ... [2022-11-03 03:44:47,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:47" (1/1) ... [2022-11-03 03:44:47,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:47" (1/1) ... [2022-11-03 03:44:47,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:47" (1/1) ... [2022-11-03 03:44:47,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:47" (1/1) ... [2022-11-03 03:44:47,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:47" (1/1) ... [2022-11-03 03:44:48,039 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:47" (1/1) ... [2022-11-03 03:44:48,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:47" (1/1) ... [2022-11-03 03:44:48,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:44:48,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:44:48,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:44:48,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:44:48,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:47" (1/1) ... [2022-11-03 03:44:48,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:44:48,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9786bd8b-3141-4112-9ebd-668570e4b61b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:44:48,175 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9786bd8b-3141-4112-9ebd-668570e4b61b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:44:48,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9786bd8b-3141-4112-9ebd-668570e4b61b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:44:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_up [2022-11-03 03:44:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_up [2022-11-03 03:44:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_media_task [2022-11-03 03:44:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_media_task [2022-11-03 03:44:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 03:44:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 03:44:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 03:44:48,235 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 03:44:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-03 03:44:48,235 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-03 03:44:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_84 [2022-11-03 03:44:48,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_84 [2022-11-03 03:44:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 03:44:48,235 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 03:44:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_select_media [2022-11-03 03:44:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_select_media [2022-11-03 03:44:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit_le [2022-11-03 03:44:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit_le [2022-11-03 03:44:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:44:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:44:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 03:44:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 03:44:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 03:44:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 03:44:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-03 03:44:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-03 03:44:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 03:44:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 03:44:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-03 03:44:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-03 03:44:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-03 03:44:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-03 03:44:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-03 03:44:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-03 03:44:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-03 03:44:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-03 03:44:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 03:44:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 03:44:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 03:44:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 03:44:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 03:44:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 03:44:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_do_nway [2022-11-03 03:44:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_do_nway [2022-11-03 03:44:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 03:44:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 03:44:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-03 03:44:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-03 03:44:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 03:44:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 03:44:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:44:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:44:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 03:44:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 03:44:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 03:44:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 03:44:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:44:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_wolopts [2022-11-03 03:44:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_wolopts [2022-11-03 03:44:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_resume [2022-11-03 03:44:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_resume [2022-11-03 03:44:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-03 03:44:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-03 03:44:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_interrupt [2022-11-03 03:44:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_interrupt [2022-11-03 03:44:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 03:44:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 03:44:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___3 [2022-11-03 03:44:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___3 [2022-11-03 03:44:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___1 [2022-11-03 03:44:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___1 [2022-11-03 03:44:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_media_task [2022-11-03 03:44:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_media_task [2022-11-03 03:44:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:44:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___5 [2022-11-03 03:44:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___5 [2022-11-03 03:44:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___4 [2022-11-03 03:44:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___4 [2022-11-03 03:44:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 03:44:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 03:44:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 03:44:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 03:44:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:44:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 03:44:48,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 03:44:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:44:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-03 03:44:48,249 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-03 03:44:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 03:44:48,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 03:44:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-03 03:44:48,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-03 03:44:48,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 03:44:48,343 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 03:44:48,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 03:44:48,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 03:44:48,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 03:44:48,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 03:44:48,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 03:44:48,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 03:44:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 03:44:48,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 03:44:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_timer [2022-11-03 03:44:48,344 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_timer [2022-11-03 03:44:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 03:44:48,344 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 03:44:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 03:44:48,344 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 03:44:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure poll_tulip [2022-11-03 03:44:48,344 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_tulip [2022-11-03 03:44:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_write [2022-11-03 03:44:48,345 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_write [2022-11-03 03:44:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:44:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 03:44:48,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 03:44:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 03:44:48,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 03:44:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 03:44:48,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 03:44:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-03 03:44:48,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-03 03:44:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:44:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 03:44:48,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 03:44:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 03:44:48,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 03:44:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:44:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_start_nway [2022-11-03 03:44:48,346 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_start_nway [2022-11-03 03:44:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-03 03:44:48,346 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-03 03:44:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-03 03:44:48,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-03 03:44:48,347 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:44:48,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:44:48,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-03 03:44:48,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-03 03:44:48,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-03 03:44:48,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-03 03:44:48,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tulip_private [2022-11-03 03:44:48,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tulip_private [2022-11-03 03:44:48,347 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 03:44:48,347 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 03:44:48,347 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-03 03:44:48,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-03 03:44:48,347 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 03:44:48,347 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 03:44:48,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 03:44:48,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 03:44:48,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mii_lock_of_tulip_private [2022-11-03 03:44:48,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mii_lock_of_tulip_private [2022-11-03 03:44:48,348 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 03:44:48,348 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 03:44:48,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tulip_private [2022-11-03 03:44:48,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tulip_private [2022-11-03 03:44:48,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:44:48,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:44:48,348 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_close [2022-11-03 03:44:48,348 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_close [2022-11-03 03:44:48,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:44:48,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:44:48,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:44:48,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:44:48,349 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-03 03:44:48,349 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-03 03:44:48,349 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-03 03:44:48,349 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-03 03:44:48,349 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_power_state [2022-11-03 03:44:48,349 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_power_state [2022-11-03 03:44:48,349 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 03:44:48,350 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 03:44:48,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2022-11-03 03:44:48,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2022-11-03 03:44:48,350 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2022-11-03 03:44:48,350 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2022-11-03 03:44:48,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 03:44:48,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 03:44:48,350 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_tx_timeout [2022-11-03 03:44:48,350 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_tx_timeout [2022-11-03 03:44:48,350 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_check_duplex [2022-11-03 03:44:48,350 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_check_duplex [2022-11-03 03:44:48,350 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 03:44:48,351 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 03:44:48,351 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2022-11-03 03:44:48,351 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2022-11-03 03:44:48,351 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2022-11-03 03:44:48,351 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2022-11-03 03:44:48,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:44:48,351 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:44:48,351 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 03:44:48,351 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 03:44:48,351 INFO L130 BoogieDeclarations]: Found specification of procedure comet_timer [2022-11-03 03:44:48,351 INFO L138 BoogieDeclarations]: Found implementation of procedure comet_timer [2022-11-03 03:44:48,352 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-03 03:44:48,352 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-03 03:44:48,352 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 03:44:48,352 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 03:44:48,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:44:48,352 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_read [2022-11-03 03:44:48,352 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_read [2022-11-03 03:44:48,352 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 03:44:48,352 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 03:44:48,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:44:48,352 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-03 03:44:48,352 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-03 03:44:48,353 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-03 03:44:48,353 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-03 03:44:48,353 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-11-03 03:44:48,353 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-11-03 03:44:48,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:44:48,353 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_down [2022-11-03 03:44:48,353 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_down [2022-11-03 03:44:48,353 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_stop_rxtx___2 [2022-11-03 03:44:48,353 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_stop_rxtx___2 [2022-11-03 03:44:48,353 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_remove_one [2022-11-03 03:44:48,353 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_remove_one [2022-11-03 03:44:48,353 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 03:44:48,354 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 03:44:48,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-03 03:44:48,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-03 03:44:48,354 INFO L130 BoogieDeclarations]: Found specification of procedure mxic_timer [2022-11-03 03:44:48,354 INFO L138 BoogieDeclarations]: Found implementation of procedure mxic_timer [2022-11-03 03:44:48,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 03:44:48,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 03:44:48,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 03:44:48,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 03:44:48,354 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_free_ring [2022-11-03 03:44:48,354 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_free_ring [2022-11-03 03:44:48,355 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-03 03:44:48,355 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-03 03:44:48,355 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_refill_rx [2022-11-03 03:44:48,357 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_refill_rx [2022-11-03 03:44:48,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_84___0 [2022-11-03 03:44:48,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_84___0 [2022-11-03 03:44:48,358 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_timer [2022-11-03 03:44:48,358 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_timer [2022-11-03 03:44:48,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_84 [2022-11-03 03:44:48,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_84 [2022-11-03 03:44:48,358 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 03:44:48,358 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 03:44:48,359 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 03:44:48,359 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 03:44:48,359 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-03 03:44:48,359 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-03 03:44:48,359 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 03:44:48,359 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 03:44:48,360 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:44:48,360 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:44:48,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:44:48,360 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx [2022-11-03 03:44:48,360 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx [2022-11-03 03:44:48,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:44:48,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:44:48,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_85 [2022-11-03 03:44:48,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_85 [2022-11-03 03:44:48,361 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2022-11-03 03:44:48,361 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2022-11-03 03:44:48,361 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_start_rxtx [2022-11-03 03:44:48,361 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_start_rxtx [2022-11-03 03:44:48,362 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 03:44:48,362 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 03:44:48,362 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_open [2022-11-03 03:44:48,362 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_open [2022-11-03 03:44:48,362 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 03:44:48,362 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 03:44:48,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 03:44:48,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 03:44:48,363 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-03 03:44:48,363 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-03 03:44:48,363 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 03:44:48,363 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 03:44:48,363 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-03 03:44:48,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-03 03:44:48,364 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_start_nway [2022-11-03 03:44:48,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_start_nway [2022-11-03 03:44:48,364 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 03:44:48,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 03:44:48,364 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_read_eeprom [2022-11-03 03:44:48,364 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_read_eeprom [2022-11-03 03:44:48,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:44:48,365 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_timer [2022-11-03 03:44:48,365 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_timer [2022-11-03 03:44:48,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 03:44:48,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 03:44:49,563 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:44:49,566 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:44:50,817 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:45:00,149 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 03:45:00,473 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:45:04,412 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:45:04,413 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 03:45:04,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:45:04 BoogieIcfgContainer [2022-11-03 03:45:04,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:45:04,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:45:04,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:45:04,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:45:04,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:44:41" (1/3) ... [2022-11-03 03:45:04,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c91b6d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:45:04, skipping insertion in model container [2022-11-03 03:45:04,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:47" (2/3) ... [2022-11-03 03:45:04,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c91b6d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:45:04, skipping insertion in model container [2022-11-03 03:45:04,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:45:04" (3/3) ... [2022-11-03 03:45:04,440 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2022-11-03 03:45:04,464 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:45:04,464 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:45:04,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:45:04,590 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@72038b38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:45:04,592 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:45:04,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 2631 states, 1543 states have (on average 1.3512637718729748) internal successors, (2085), 1642 states have internal predecessors, (2085), 955 states have call successors, (955), 134 states have call predecessors, (955), 133 states have return successors, (948), 903 states have call predecessors, (948), 948 states have call successors, (948) [2022-11-03 03:45:04,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-03 03:45:04,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:04,652 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 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] [2022-11-03 03:45:04,652 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:04,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:04,659 INFO L85 PathProgramCache]: Analyzing trace with hash -882329180, now seen corresponding path program 1 times [2022-11-03 03:45:04,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:04,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99246515] [2022-11-03 03:45:04,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:04,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:06,112 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2022-11-03 03:45:06,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:06,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99246515] [2022-11-03 03:45:06,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99246515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:06,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:06,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:45:06,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809855666] [2022-11-03 03:45:06,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:06,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:45:06,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:06,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:45:06,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:06,165 INFO L87 Difference]: Start difference. First operand has 2631 states, 1543 states have (on average 1.3512637718729748) internal successors, (2085), 1642 states have internal predecessors, (2085), 955 states have call successors, (955), 134 states have call predecessors, (955), 133 states have return successors, (948), 903 states have call predecessors, (948), 948 states have call successors, (948) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 03:45:11,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:12,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:12,362 INFO L93 Difference]: Finished difference Result 6981 states and 10636 transitions. [2022-11-03 03:45:12,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:45:12,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 170 [2022-11-03 03:45:12,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:12,414 INFO L225 Difference]: With dead ends: 6981 [2022-11-03 03:45:12,414 INFO L226 Difference]: Without dead ends: 4317 [2022-11-03 03:45:12,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:12,437 INFO L413 NwaCegarLoop]: 4151 mSDtfsCounter, 2651 mSDsluCounter, 3917 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2651 SdHoareTripleChecker+Valid, 7645 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:12,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2651 Valid, 7645 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 922 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-11-03 03:45:12,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4317 states. [2022-11-03 03:45:12,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4317 to 4314. [2022-11-03 03:45:12,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4314 states, 2572 states have (on average 1.3483670295489891) internal successors, (3468), 2726 states have internal predecessors, (3468), 1520 states have call successors, (1520), 221 states have call predecessors, (1520), 221 states have return successors, (1520), 1449 states have call predecessors, (1520), 1520 states have call successors, (1520) [2022-11-03 03:45:12,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4314 states to 4314 states and 6508 transitions. [2022-11-03 03:45:12,963 INFO L78 Accepts]: Start accepts. Automaton has 4314 states and 6508 transitions. Word has length 170 [2022-11-03 03:45:12,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:12,968 INFO L495 AbstractCegarLoop]: Abstraction has 4314 states and 6508 transitions. [2022-11-03 03:45:12,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 03:45:12,969 INFO L276 IsEmpty]: Start isEmpty. Operand 4314 states and 6508 transitions. [2022-11-03 03:45:12,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-03 03:45:12,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:12,998 INFO L195 NwaCegarLoop]: trace histogram [15, 13, 13, 13, 13, 13, 13, 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] [2022-11-03 03:45:12,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:45:12,999 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:13,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:13,000 INFO L85 PathProgramCache]: Analyzing trace with hash 329585210, now seen corresponding path program 1 times [2022-11-03 03:45:13,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:13,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991242904] [2022-11-03 03:45:13,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:13,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:13,909 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2022-11-03 03:45:13,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:13,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991242904] [2022-11-03 03:45:13,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991242904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:13,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:13,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:45:13,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251705471] [2022-11-03 03:45:13,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:13,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:45:13,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:13,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:45:13,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:13,926 INFO L87 Difference]: Start difference. First operand 4314 states and 6508 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 03:45:19,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:20,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:20,565 INFO L93 Difference]: Finished difference Result 12700 states and 19141 transitions. [2022-11-03 03:45:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:45:20,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 215 [2022-11-03 03:45:20,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:20,637 INFO L225 Difference]: With dead ends: 12700 [2022-11-03 03:45:20,638 INFO L226 Difference]: Without dead ends: 8413 [2022-11-03 03:45:20,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:20,664 INFO L413 NwaCegarLoop]: 4339 mSDtfsCounter, 3564 mSDsluCounter, 3889 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3564 SdHoareTripleChecker+Valid, 7797 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:20,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3564 Valid, 7797 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 894 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-11-03 03:45:20,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8413 states. [2022-11-03 03:45:21,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8413 to 8396. [2022-11-03 03:45:21,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8396 states, 4999 states have (on average 1.344868973794759) internal successors, (6723), 5301 states have internal predecessors, (6723), 2958 states have call successors, (2958), 438 states have call predecessors, (2958), 438 states have return successors, (2958), 2817 states have call predecessors, (2958), 2958 states have call successors, (2958) [2022-11-03 03:45:21,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8396 states to 8396 states and 12639 transitions. [2022-11-03 03:45:21,559 INFO L78 Accepts]: Start accepts. Automaton has 8396 states and 12639 transitions. Word has length 215 [2022-11-03 03:45:21,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:21,562 INFO L495 AbstractCegarLoop]: Abstraction has 8396 states and 12639 transitions. [2022-11-03 03:45:21,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 03:45:21,563 INFO L276 IsEmpty]: Start isEmpty. Operand 8396 states and 12639 transitions. [2022-11-03 03:45:21,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-11-03 03:45:21,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:21,602 INFO L195 NwaCegarLoop]: trace histogram [15, 13, 13, 13, 13, 13, 13, 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] [2022-11-03 03:45:21,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:45:21,603 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:21,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:21,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1527558549, now seen corresponding path program 1 times [2022-11-03 03:45:21,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:21,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870909270] [2022-11-03 03:45:21,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:21,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:22,360 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2022-11-03 03:45:22,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:22,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870909270] [2022-11-03 03:45:22,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870909270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:22,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:22,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:45:22,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082562937] [2022-11-03 03:45:22,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:22,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:45:22,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:22,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:45:22,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:22,380 INFO L87 Difference]: Start difference. First operand 8396 states and 12639 transitions. 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, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 03:45:28,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:29,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:29,805 INFO L93 Difference]: Finished difference Result 24450 states and 36893 transitions. [2022-11-03 03:45:29,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:45:29,807 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, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 216 [2022-11-03 03:45:29,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:29,927 INFO L225 Difference]: With dead ends: 24450 [2022-11-03 03:45:29,928 INFO L226 Difference]: Without dead ends: 16081 [2022-11-03 03:45:29,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:29,971 INFO L413 NwaCegarLoop]: 4307 mSDtfsCounter, 3573 mSDsluCounter, 3779 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3573 SdHoareTripleChecker+Valid, 7672 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:29,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3573 Valid, 7672 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 859 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-03 03:45:29,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16081 states. [2022-11-03 03:45:31,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16081 to 16060. [2022-11-03 03:45:31,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16060 states, 9574 states have (on average 1.346354710674744) internal successors, (12890), 10155 states have internal predecessors, (12890), 5637 states have call successors, (5637), 856 states have call predecessors, (5637), 848 states have return successors, (5735), 5348 states have call predecessors, (5735), 5637 states have call successors, (5735) [2022-11-03 03:45:31,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16060 states to 16060 states and 24262 transitions. [2022-11-03 03:45:31,358 INFO L78 Accepts]: Start accepts. Automaton has 16060 states and 24262 transitions. Word has length 216 [2022-11-03 03:45:31,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:31,360 INFO L495 AbstractCegarLoop]: Abstraction has 16060 states and 24262 transitions. [2022-11-03 03:45:31,361 INFO L496 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, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 03:45:31,361 INFO L276 IsEmpty]: Start isEmpty. Operand 16060 states and 24262 transitions. [2022-11-03 03:45:31,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-03 03:45:31,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:31,393 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 4, 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] [2022-11-03 03:45:31,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:45:31,393 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:31,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:31,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1146999482, now seen corresponding path program 1 times [2022-11-03 03:45:31,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:31,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358665205] [2022-11-03 03:45:31,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:31,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:32,068 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2022-11-03 03:45:32,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:32,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358665205] [2022-11-03 03:45:32,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358665205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:32,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:32,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:45:32,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125012669] [2022-11-03 03:45:32,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:32,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:45:32,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:32,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:45:32,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:32,073 INFO L87 Difference]: Start difference. First operand 16060 states and 24262 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 03:45:39,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:39,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:39,660 INFO L93 Difference]: Finished difference Result 38790 states and 58642 transitions. [2022-11-03 03:45:39,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:45:39,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 217 [2022-11-03 03:45:39,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:39,810 INFO L225 Difference]: With dead ends: 38790 [2022-11-03 03:45:39,810 INFO L226 Difference]: Without dead ends: 22757 [2022-11-03 03:45:39,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:39,895 INFO L413 NwaCegarLoop]: 5790 mSDtfsCounter, 2598 mSDsluCounter, 3854 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 9222 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:39,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2598 Valid, 9222 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1186 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-11-03 03:45:39,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22757 states. [2022-11-03 03:45:41,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22757 to 22751. [2022-11-03 03:45:41,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22751 states, 13610 states have (on average 1.347391623806025) internal successors, (18338), 14415 states have internal predecessors, (18338), 7939 states have call successors, (7939), 1211 states have call predecessors, (7939), 1201 states have return successors, (8078), 7541 states have call predecessors, (8078), 7939 states have call successors, (8078) [2022-11-03 03:45:42,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22751 states to 22751 states and 34355 transitions. [2022-11-03 03:45:42,098 INFO L78 Accepts]: Start accepts. Automaton has 22751 states and 34355 transitions. Word has length 217 [2022-11-03 03:45:42,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:42,099 INFO L495 AbstractCegarLoop]: Abstraction has 22751 states and 34355 transitions. [2022-11-03 03:45:42,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 03:45:42,100 INFO L276 IsEmpty]: Start isEmpty. Operand 22751 states and 34355 transitions. [2022-11-03 03:45:42,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-11-03 03:45:42,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:42,135 INFO L195 NwaCegarLoop]: trace histogram [16, 13, 13, 13, 13, 13, 13, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:45:42,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:45:42,136 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:42,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:42,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1104180102, now seen corresponding path program 1 times [2022-11-03 03:45:42,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:42,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997611290] [2022-11-03 03:45:42,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:42,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:42,681 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2022-11-03 03:45:42,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:42,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997611290] [2022-11-03 03:45:42,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997611290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:42,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:42,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:45:42,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946856576] [2022-11-03 03:45:42,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:42,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:45:42,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:42,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:45:42,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:42,686 INFO L87 Difference]: Start difference. First operand 22751 states and 34355 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-03 03:45:48,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:49,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:49,355 INFO L93 Difference]: Finished difference Result 48748 states and 73555 transitions. [2022-11-03 03:45:49,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:45:49,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 230 [2022-11-03 03:45:49,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:49,520 INFO L225 Difference]: With dead ends: 48748 [2022-11-03 03:45:49,520 INFO L226 Difference]: Without dead ends: 26024 [2022-11-03 03:45:49,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:49,622 INFO L413 NwaCegarLoop]: 4067 mSDtfsCounter, 2552 mSDsluCounter, 3869 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2552 SdHoareTripleChecker+Valid, 7511 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:49,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2552 Valid, 7511 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 887 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-11-03 03:45:49,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26024 states. [2022-11-03 03:45:51,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26024 to 26022. [2022-11-03 03:45:51,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26022 states, 15590 states have (on average 1.3468248877485567) internal successors, (20997), 16502 states have internal predecessors, (20997), 9038 states have call successors, (9038), 1404 states have call predecessors, (9038), 1393 states have return successors, (9196), 8590 states have call predecessors, (9196), 9038 states have call successors, (9196) [2022-11-03 03:45:51,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26022 states to 26022 states and 39231 transitions. [2022-11-03 03:45:51,713 INFO L78 Accepts]: Start accepts. Automaton has 26022 states and 39231 transitions. Word has length 230 [2022-11-03 03:45:51,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:51,715 INFO L495 AbstractCegarLoop]: Abstraction has 26022 states and 39231 transitions. [2022-11-03 03:45:51,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-03 03:45:51,715 INFO L276 IsEmpty]: Start isEmpty. Operand 26022 states and 39231 transitions. [2022-11-03 03:45:51,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-03 03:45:51,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:51,795 INFO L195 NwaCegarLoop]: trace histogram [19, 13, 13, 13, 13, 13, 13, 6, 6, 3, 3, 3, 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] [2022-11-03 03:45:51,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:45:51,796 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:51,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:51,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1847707731, now seen corresponding path program 1 times [2022-11-03 03:45:51,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:51,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063286717] [2022-11-03 03:45:51,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:51,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:52,262 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2022-11-03 03:45:52,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:52,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063286717] [2022-11-03 03:45:52,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063286717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:52,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:52,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:45:52,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18011852] [2022-11-03 03:45:52,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:52,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:45:52,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:52,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:45:52,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:52,265 INFO L87 Difference]: Start difference. First operand 26022 states and 39231 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-03 03:45:59,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:01,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:01,051 INFO L93 Difference]: Finished difference Result 59938 states and 90358 transitions. [2022-11-03 03:46:01,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:46:01,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 272 [2022-11-03 03:46:01,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:01,275 INFO L225 Difference]: With dead ends: 59938 [2022-11-03 03:46:01,276 INFO L226 Difference]: Without dead ends: 37138 [2022-11-03 03:46:01,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:46:01,375 INFO L413 NwaCegarLoop]: 6650 mSDtfsCounter, 3564 mSDsluCounter, 3887 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3564 SdHoareTripleChecker+Valid, 10106 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:01,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3564 Valid, 10106 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1287 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-11-03 03:46:01,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37138 states. [2022-11-03 03:46:03,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37138 to 37113. [2022-11-03 03:46:03,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37113 states, 22214 states have (on average 1.3464481858287567) internal successors, (29910), 23526 states have internal predecessors, (29910), 12901 states have call successors, (12901), 2013 states have call predecessors, (12901), 1997 states have return successors, (13124), 12252 states have call predecessors, (13124), 12901 states have call successors, (13124) [2022-11-03 03:46:03,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37113 states to 37113 states and 55935 transitions. [2022-11-03 03:46:04,009 INFO L78 Accepts]: Start accepts. Automaton has 37113 states and 55935 transitions. Word has length 272 [2022-11-03 03:46:04,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:04,010 INFO L495 AbstractCegarLoop]: Abstraction has 37113 states and 55935 transitions. [2022-11-03 03:46:04,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-03 03:46:04,010 INFO L276 IsEmpty]: Start isEmpty. Operand 37113 states and 55935 transitions. [2022-11-03 03:46:04,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-11-03 03:46:04,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:04,068 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 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] [2022-11-03 03:46:04,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:46:04,069 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:04,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:04,070 INFO L85 PathProgramCache]: Analyzing trace with hash -966427155, now seen corresponding path program 1 times [2022-11-03 03:46:04,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:04,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602632759] [2022-11-03 03:46:04,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:04,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:04,570 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-11-03 03:46:04,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:04,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602632759] [2022-11-03 03:46:04,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602632759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:04,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:46:04,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:46:04,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627936677] [2022-11-03 03:46:04,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:04,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:46:04,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:04,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:46:04,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:46:04,576 INFO L87 Difference]: Start difference. First operand 37113 states and 55935 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-03 03:46:12,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:13,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:13,691 INFO L93 Difference]: Finished difference Result 107436 states and 161861 transitions. [2022-11-03 03:46:13,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:46:13,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 273 [2022-11-03 03:46:13,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:14,347 INFO L225 Difference]: With dead ends: 107436 [2022-11-03 03:46:14,347 INFO L226 Difference]: Without dead ends: 70350 [2022-11-03 03:46:14,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:46:14,495 INFO L413 NwaCegarLoop]: 4362 mSDtfsCounter, 3570 mSDsluCounter, 3889 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3570 SdHoareTripleChecker+Valid, 7820 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:14,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3570 Valid, 7820 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 895 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-11-03 03:46:14,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70350 states. [2022-11-03 03:46:18,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70350 to 70325. [2022-11-03 03:46:18,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70325 states, 42087 states have (on average 1.344666999310951) internal successors, (56593), 44595 states have internal predecessors, (56593), 24422 states have call successors, (24422), 3846 states have call predecessors, (24422), 3815 states have return successors, (24819), 23177 states have call predecessors, (24819), 24422 states have call successors, (24819) [2022-11-03 03:46:18,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70325 states to 70325 states and 105834 transitions. [2022-11-03 03:46:18,904 INFO L78 Accepts]: Start accepts. Automaton has 70325 states and 105834 transitions. Word has length 273 [2022-11-03 03:46:18,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:18,905 INFO L495 AbstractCegarLoop]: Abstraction has 70325 states and 105834 transitions. [2022-11-03 03:46:18,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-03 03:46:18,905 INFO L276 IsEmpty]: Start isEmpty. Operand 70325 states and 105834 transitions. [2022-11-03 03:46:18,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-11-03 03:46:18,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:18,976 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 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] [2022-11-03 03:46:18,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 03:46:18,976 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:18,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:18,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1923210462, now seen corresponding path program 1 times [2022-11-03 03:46:18,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:18,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587200468] [2022-11-03 03:46:18,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:18,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:19,726 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-11-03 03:46:19,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:19,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587200468] [2022-11-03 03:46:19,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587200468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:19,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:46:19,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:46:19,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996698124] [2022-11-03 03:46:19,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:19,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:46:19,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:19,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:46:19,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:46:19,731 INFO L87 Difference]: Start difference. First operand 70325 states and 105834 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-03 03:46:29,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:30,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:30,990 INFO L93 Difference]: Finished difference Result 206859 states and 311245 transitions. [2022-11-03 03:46:30,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:46:30,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 275 [2022-11-03 03:46:30,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:31,854 INFO L225 Difference]: With dead ends: 206859 [2022-11-03 03:46:31,854 INFO L226 Difference]: Without dead ends: 136561 [2022-11-03 03:46:32,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:46:32,358 INFO L413 NwaCegarLoop]: 4377 mSDtfsCounter, 3568 mSDsluCounter, 3889 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3568 SdHoareTripleChecker+Valid, 7835 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:32,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3568 Valid, 7835 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 894 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-11-03 03:46:32,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136561 states.