./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 aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cd6c9e-3a37-4dd7-8528-f02296314741/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cd6c9e-3a37-4dd7-8528-f02296314741/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cd6c9e-3a37-4dd7-8528-f02296314741/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cd6c9e-3a37-4dd7-8528-f02296314741/bin/utaipan-EQgc7hIp5V/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_47cd6c9e-3a37-4dd7-8528-f02296314741/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cd6c9e-3a37-4dd7-8528-f02296314741/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 992a1e8d90338cdabe7a076eea5104d9629c0e7f956adc14aa39d01d99d3f218 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:49:07,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:49:07,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:49:07,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:49:07,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:49:07,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:49:07,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:49:07,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:49:07,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:49:07,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:49:07,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:49:07,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:49:07,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:49:07,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:49:07,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:49:07,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:49:07,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:49:07,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:49:07,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:49:07,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:49:07,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:49:07,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:49:07,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:49:07,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:49:07,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:49:07,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:49:07,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:49:07,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:49:07,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:49:07,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:49:07,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:49:07,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:49:07,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:49:07,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:49:07,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:49:07,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:49:07,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:49:07,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:49:07,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:49:07,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:49:07,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:49:07,480 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cd6c9e-3a37-4dd7-8528-f02296314741/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 03:49:07,548 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:49:07,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:49:07,549 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:49:07,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:49:07,551 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:49:07,551 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:49:07,552 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:49:07,552 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:49:07,552 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:49:07,552 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:49:07,554 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:49:07,554 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:49:07,554 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:49:07,555 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:49:07,555 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:49:07,555 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:49:07,555 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:49:07,556 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:49:07,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:49:07,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:49:07,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:49:07,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:49:07,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:49:07,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:49:07,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:49:07,559 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:49:07,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:49:07,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:49:07,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:49:07,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:49:07,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:49:07,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:49:07,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:49:07,564 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:49:07,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:49:07,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:49:07,565 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:49:07,565 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:49:07,565 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cd6c9e-3a37-4dd7-8528-f02296314741/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cd6c9e-3a37-4dd7-8528-f02296314741/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 992a1e8d90338cdabe7a076eea5104d9629c0e7f956adc14aa39d01d99d3f218 [2021-11-23 03:49:07,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:49:07,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:49:07,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:49:07,997 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:49:07,998 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:49:07,999 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cd6c9e-3a37-4dd7-8528-f02296314741/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2021-11-23 03:49:08,093 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cd6c9e-3a37-4dd7-8528-f02296314741/bin/utaipan-EQgc7hIp5V/data/b72942453/9d2905ceee024d51a143e888a5a3789a/FLAG2b1a02ecf [2021-11-23 03:49:09,464 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:49:09,465 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cd6c9e-3a37-4dd7-8528-f02296314741/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2021-11-23 03:49:09,561 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cd6c9e-3a37-4dd7-8528-f02296314741/bin/utaipan-EQgc7hIp5V/data/b72942453/9d2905ceee024d51a143e888a5a3789a/FLAG2b1a02ecf [2021-11-23 03:49:10,074 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cd6c9e-3a37-4dd7-8528-f02296314741/bin/utaipan-EQgc7hIp5V/data/b72942453/9d2905ceee024d51a143e888a5a3789a [2021-11-23 03:49:10,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:49:10,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:49:10,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:49:10,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:49:10,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:49:10,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:10" (1/1) ... [2021-11-23 03:49:10,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e1aba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:10, skipping insertion in model container [2021-11-23 03:49:10,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:10" (1/1) ... [2021-11-23 03:49:10,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:49:10,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:49:16,446 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_47cd6c9e-3a37-4dd7-8528-f02296314741/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] [2021-11-23 03:49:16,450 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_47cd6c9e-3a37-4dd7-8528-f02296314741/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] [2021-11-23 03:49:16,485 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:49:16,537 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:49:17,212 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_47cd6c9e-3a37-4dd7-8528-f02296314741/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] [2021-11-23 03:49:17,213 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_47cd6c9e-3a37-4dd7-8528-f02296314741/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] [2021-11-23 03:49:17,223 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:49:17,600 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:49:17,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:17 WrapperNode [2021-11-23 03:49:17,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:49:17,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:49:17,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:49:17,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:49:17,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:17" (1/1) ... [2021-11-23 03:49:17,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:17" (1/1) ... [2021-11-23 03:49:18,286 INFO L137 Inliner]: procedures = 567, calls = 5407, calls flagged for inlining = 289, calls inlined = 263, statements flattened = 11461 [2021-11-23 03:49:18,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:49:18,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:49:18,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:49:18,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:49:18,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:17" (1/1) ... [2021-11-23 03:49:18,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:17" (1/1) ... [2021-11-23 03:49:18,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:17" (1/1) ... [2021-11-23 03:49:18,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:17" (1/1) ... [2021-11-23 03:49:18,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:17" (1/1) ... [2021-11-23 03:49:18,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:17" (1/1) ... [2021-11-23 03:49:18,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:17" (1/1) ... [2021-11-23 03:49:18,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:49:18,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:49:18,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:49:18,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:49:18,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:17" (1/1) ... [2021-11-23 03:49:18,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:49:18,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cd6c9e-3a37-4dd7-8528-f02296314741/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:49:18,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cd6c9e-3a37-4dd7-8528-f02296314741/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:49:19,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cd6c9e-3a37-4dd7-8528-f02296314741/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:49:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_up [2021-11-23 03:49:19,186 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_up [2021-11-23 03:49:19,187 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_media_task [2021-11-23 03:49:19,187 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_media_task [2021-11-23 03:49:19,187 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-23 03:49:19,187 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-23 03:49:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 03:49:19,188 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 03:49:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-23 03:49:19,188 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-23 03:49:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_84 [2021-11-23 03:49:19,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_84 [2021-11-23 03:49:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-23 03:49:19,189 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-23 03:49:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_select_media [2021-11-23 03:49:19,190 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_select_media [2021-11-23 03:49:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit_le [2021-11-23 03:49:19,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit_le [2021-11-23 03:49:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 03:49:19,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 03:49:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-23 03:49:19,191 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-23 03:49:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 03:49:19,192 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 03:49:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-23 03:49:19,192 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-23 03:49:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-23 03:49:19,193 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-23 03:49:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-23 03:49:19,194 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-23 03:49:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-23 03:49:19,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-23 03:49:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-23 03:49:19,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-23 03:49:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-23 03:49:19,195 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-23 03:49:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 03:49:19,196 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 03:49:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-23 03:49:19,210 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-23 03:49:19,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 03:49:19,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 03:49:19,212 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_do_nway [2021-11-23 03:49:19,212 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_do_nway [2021-11-23 03:49:19,212 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-23 03:49:19,213 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-23 03:49:19,213 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-23 03:49:19,214 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-23 03:49:19,215 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-23 03:49:19,215 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-23 03:49:19,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 03:49:19,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 03:49:19,216 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-23 03:49:19,216 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-23 03:49:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-23 03:49:19,217 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-23 03:49:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:49:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_wolopts [2021-11-23 03:49:19,218 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_wolopts [2021-11-23 03:49:19,219 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_resume [2021-11-23 03:49:19,219 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_resume [2021-11-23 03:49:19,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-23 03:49:19,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-23 03:49:19,219 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_interrupt [2021-11-23 03:49:19,220 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_interrupt [2021-11-23 03:49:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 03:49:19,220 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 03:49:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___3 [2021-11-23 03:49:19,221 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___3 [2021-11-23 03:49:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___1 [2021-11-23 03:49:19,221 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___1 [2021-11-23 03:49:19,222 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_media_task [2021-11-23 03:49:19,223 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_media_task [2021-11-23 03:49:19,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 03:49:19,223 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___5 [2021-11-23 03:49:19,223 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___5 [2021-11-23 03:49:19,224 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___4 [2021-11-23 03:49:19,224 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___4 [2021-11-23 03:49:19,224 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 03:49:19,224 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 03:49:19,225 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 03:49:19,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 03:49:19,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 03:49:19,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 03:49:19,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 03:49:19,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:49:19,227 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-23 03:49:19,228 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-23 03:49:19,229 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 03:49:19,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 03:49:19,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-23 03:49:19,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-23 03:49:19,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 03:49:19,231 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 03:49:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-23 03:49:19,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-23 03:49:19,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-23 03:49:19,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-23 03:49:19,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 03:49:19,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 03:49:19,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 03:49:19,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 03:49:19,233 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_timer [2021-11-23 03:49:19,233 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_timer [2021-11-23 03:49:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-23 03:49:19,234 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-23 03:49:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 03:49:19,234 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 03:49:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure poll_tulip [2021-11-23 03:49:19,236 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_tulip [2021-11-23 03:49:19,240 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_write [2021-11-23 03:49:19,240 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_write [2021-11-23 03:49:19,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:49:19,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-23 03:49:19,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-23 03:49:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-23 03:49:19,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-23 03:49:19,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-23 03:49:19,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-23 03:49:19,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-23 03:49:19,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-23 03:49:19,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:49:19,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 03:49:19,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 03:49:19,252 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 03:49:19,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 03:49:19,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:49:19,253 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_start_nway [2021-11-23 03:49:19,253 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_start_nway [2021-11-23 03:49:19,253 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-23 03:49:19,254 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-23 03:49:19,254 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-11-23 03:49:19,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-11-23 03:49:19,254 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:49:19,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:49:19,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-23 03:49:19,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-23 03:49:19,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-23 03:49:19,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-23 03:49:19,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tulip_private [2021-11-23 03:49:19,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tulip_private [2021-11-23 03:49:19,256 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-23 03:49:19,256 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-23 03:49:19,256 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-23 03:49:19,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-23 03:49:19,257 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 03:49:19,257 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 03:49:19,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-23 03:49:19,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-23 03:49:19,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mii_lock_of_tulip_private [2021-11-23 03:49:19,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mii_lock_of_tulip_private [2021-11-23 03:49:19,258 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-23 03:49:19,258 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-23 03:49:19,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tulip_private [2021-11-23 03:49:19,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tulip_private [2021-11-23 03:49:19,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:49:19,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:49:19,259 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_close [2021-11-23 03:49:19,260 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_close [2021-11-23 03:49:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 03:49:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 03:49:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 03:49:19,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 03:49:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-23 03:49:19,261 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-23 03:49:19,262 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-23 03:49:19,262 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-23 03:49:19,262 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_power_state [2021-11-23 03:49:19,262 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_power_state [2021-11-23 03:49:19,262 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-23 03:49:19,263 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-23 03:49:19,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2021-11-23 03:49:19,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2021-11-23 03:49:19,263 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2021-11-23 03:49:19,263 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2021-11-23 03:49:19,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-23 03:49:19,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-23 03:49:19,264 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_tx_timeout [2021-11-23 03:49:19,264 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_tx_timeout [2021-11-23 03:49:19,265 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_check_duplex [2021-11-23 03:49:19,265 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_check_duplex [2021-11-23 03:49:19,265 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-23 03:49:19,265 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-23 03:49:19,265 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2021-11-23 03:49:19,266 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2021-11-23 03:49:19,266 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2021-11-23 03:49:19,266 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2021-11-23 03:49:19,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:49:19,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:49:19,267 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-23 03:49:19,267 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-23 03:49:19,267 INFO L130 BoogieDeclarations]: Found specification of procedure comet_timer [2021-11-23 03:49:19,267 INFO L138 BoogieDeclarations]: Found implementation of procedure comet_timer [2021-11-23 03:49:19,267 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-23 03:49:19,268 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-23 03:49:19,268 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-23 03:49:19,268 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-23 03:49:19,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:49:19,268 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_read [2021-11-23 03:49:19,269 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_read [2021-11-23 03:49:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-23 03:49:19,269 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-23 03:49:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:49:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-23 03:49:19,270 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-23 03:49:19,270 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-23 03:49:19,270 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-23 03:49:19,270 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2021-11-23 03:49:19,271 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2021-11-23 03:49:19,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 03:49:19,271 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_down [2021-11-23 03:49:19,271 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_down [2021-11-23 03:49:19,271 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_stop_rxtx___2 [2021-11-23 03:49:19,272 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_stop_rxtx___2 [2021-11-23 03:49:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_remove_one [2021-11-23 03:49:19,272 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_remove_one [2021-11-23 03:49:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 03:49:19,272 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 03:49:19,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-23 03:49:19,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-23 03:49:19,273 INFO L130 BoogieDeclarations]: Found specification of procedure mxic_timer [2021-11-23 03:49:19,273 INFO L138 BoogieDeclarations]: Found implementation of procedure mxic_timer [2021-11-23 03:49:19,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 03:49:19,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 03:49:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-23 03:49:19,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-23 03:49:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_free_ring [2021-11-23 03:49:19,275 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_free_ring [2021-11-23 03:49:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-23 03:49:19,275 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-23 03:49:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_refill_rx [2021-11-23 03:49:19,275 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_refill_rx [2021-11-23 03:49:19,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_84___0 [2021-11-23 03:49:19,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_84___0 [2021-11-23 03:49:19,276 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_timer [2021-11-23 03:49:19,276 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_timer [2021-11-23 03:49:19,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_84 [2021-11-23 03:49:19,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_84 [2021-11-23 03:49:19,283 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-23 03:49:19,283 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-23 03:49:19,283 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 03:49:19,284 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 03:49:19,284 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-23 03:49:19,284 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-23 03:49:19,284 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 03:49:19,284 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 03:49:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 03:49:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 03:49:19,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:49:19,290 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx [2021-11-23 03:49:19,290 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx [2021-11-23 03:49:19,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 03:49:19,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 03:49:19,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_85 [2021-11-23 03:49:19,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_85 [2021-11-23 03:49:19,291 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2021-11-23 03:49:19,291 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2021-11-23 03:49:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_start_rxtx [2021-11-23 03:49:19,292 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_start_rxtx [2021-11-23 03:49:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-23 03:49:19,292 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-23 03:49:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_open [2021-11-23 03:49:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_open [2021-11-23 03:49:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-23 03:49:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-23 03:49:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 03:49:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 03:49:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-23 03:49:19,294 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-23 03:49:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-23 03:49:19,294 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-23 03:49:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-23 03:49:19,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-23 03:49:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_start_nway [2021-11-23 03:49:19,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_start_nway [2021-11-23 03:49:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-23 03:49:19,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-23 03:49:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_read_eeprom [2021-11-23 03:49:19,296 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_read_eeprom [2021-11-23 03:49:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:49:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_timer [2021-11-23 03:49:19,296 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_timer [2021-11-23 03:49:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 03:49:19,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 03:49:20,923 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:49:20,933 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:49:22,508 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 03:49:33,605 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 03:49:33,784 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:49:38,356 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:49:38,356 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 03:49:38,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:49:38 BoogieIcfgContainer [2021-11-23 03:49:38,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:49:38,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:49:38,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:49:38,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:49:38,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:49:10" (1/3) ... [2021-11-23 03:49:38,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af1dd99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:49:38, skipping insertion in model container [2021-11-23 03:49:38,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:17" (2/3) ... [2021-11-23 03:49:38,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af1dd99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:49:38, skipping insertion in model container [2021-11-23 03:49:38,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:49:38" (3/3) ... [2021-11-23 03:49:38,378 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2021-11-23 03:49:38,386 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:49:38,386 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:49:38,489 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:49:38,510 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:49:38,510 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:49:38,623 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) [2021-11-23 03:49:38,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-23 03:49:38,667 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:49:38,668 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:49:38,669 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:49:38,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:49:38,677 INFO L85 PathProgramCache]: Analyzing trace with hash -882329180, now seen corresponding path program 1 times [2021-11-23 03:49:38,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:49:38,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894077925] [2021-11-23 03:49:38,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:49:38,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:49:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:49:40,124 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2021-11-23 03:49:40,124 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:49:40,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894077925] [2021-11-23 03:49:40,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894077925] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:49:40,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:49:40,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:49:40,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695257771] [2021-11-23 03:49:40,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:49:40,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:49:40,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:49:40,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:49:40,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:49:40,238 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) [2021-11-23 03:49:46,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:48,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:49,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:49:49,729 INFO L93 Difference]: Finished difference Result 6981 states and 10636 transitions. [2021-11-23 03:49:49,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:49:49,735 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 [2021-11-23 03:49:49,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:49:49,842 INFO L225 Difference]: With dead ends: 6981 [2021-11-23 03:49:49,842 INFO L226 Difference]: Without dead ends: 4317 [2021-11-23 03:49:49,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:49:49,898 INFO L933 BasicCegarLoop]: 4151 mSDtfsCounter, 2651 mSDsluCounter, 3918 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2651 SdHoareTripleChecker+Valid, 7645 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:49:49,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2651 Valid, 7645 Invalid, 941 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 923 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2021-11-23 03:49:49,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4317 states. [2021-11-23 03:49:50,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4317 to 4314. [2021-11-23 03:49:50,641 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) [2021-11-23 03:49:50,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4314 states to 4314 states and 6508 transitions. [2021-11-23 03:49:50,714 INFO L78 Accepts]: Start accepts. Automaton has 4314 states and 6508 transitions. Word has length 170 [2021-11-23 03:49:50,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:49:50,720 INFO L470 AbstractCegarLoop]: Abstraction has 4314 states and 6508 transitions. [2021-11-23 03:49:50,720 INFO L471 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) [2021-11-23 03:49:50,722 INFO L276 IsEmpty]: Start isEmpty. Operand 4314 states and 6508 transitions. [2021-11-23 03:49:50,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-23 03:49:50,767 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:49:50,768 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:49:50,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:49:50,769 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:49:50,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:49:50,771 INFO L85 PathProgramCache]: Analyzing trace with hash 329585210, now seen corresponding path program 1 times [2021-11-23 03:49:50,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:49:50,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007177390] [2021-11-23 03:49:50,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:49:50,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:49:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:49:51,727 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2021-11-23 03:49:51,728 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:49:51,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007177390] [2021-11-23 03:49:51,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007177390] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:49:51,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:49:51,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:49:51,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503171604] [2021-11-23 03:49:51,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:49:51,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:49:51,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:49:51,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:49:51,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:49:51,739 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) [2021-11-23 03:49:59,006 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:59,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:49:59,977 INFO L93 Difference]: Finished difference Result 12700 states and 19141 transitions. [2021-11-23 03:49:59,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:49:59,978 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 [2021-11-23 03:49:59,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:50:00,115 INFO L225 Difference]: With dead ends: 12700 [2021-11-23 03:50:00,115 INFO L226 Difference]: Without dead ends: 8413 [2021-11-23 03:50:00,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:50:00,162 INFO L933 BasicCegarLoop]: 4339 mSDtfsCounter, 3564 mSDsluCounter, 3889 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s 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, 7.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:50:00,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3564 Valid, 7797 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 894 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2021-11-23 03:50:00,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8413 states. [2021-11-23 03:50:01,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8413 to 8396. [2021-11-23 03:50:01,393 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) [2021-11-23 03:50:01,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8396 states to 8396 states and 12639 transitions. [2021-11-23 03:50:01,463 INFO L78 Accepts]: Start accepts. Automaton has 8396 states and 12639 transitions. Word has length 215 [2021-11-23 03:50:01,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:50:01,466 INFO L470 AbstractCegarLoop]: Abstraction has 8396 states and 12639 transitions. [2021-11-23 03:50:01,468 INFO L471 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) [2021-11-23 03:50:01,468 INFO L276 IsEmpty]: Start isEmpty. Operand 8396 states and 12639 transitions. [2021-11-23 03:50:01,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-23 03:50:01,506 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:50:01,507 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:50:01,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:50:01,507 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:50:01,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:50:01,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1527558549, now seen corresponding path program 1 times [2021-11-23 03:50:01,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:50:01,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311981986] [2021-11-23 03:50:01,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:50:01,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:50:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:50:02,082 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2021-11-23 03:50:02,082 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:50:02,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311981986] [2021-11-23 03:50:02,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311981986] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:50:02,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:50:02,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:50:02,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420904121] [2021-11-23 03:50:02,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:50:02,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:50:02,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:50:02,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:50:02,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:50:02,087 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) [2021-11-23 03:50:09,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:10,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:50:10,607 INFO L93 Difference]: Finished difference Result 24450 states and 36893 transitions. [2021-11-23 03:50:10,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:50:10,608 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 [2021-11-23 03:50:10,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:50:10,829 INFO L225 Difference]: With dead ends: 24450 [2021-11-23 03:50:10,830 INFO L226 Difference]: Without dead ends: 16081 [2021-11-23 03:50:10,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:50:10,916 INFO L933 BasicCegarLoop]: 4307 mSDtfsCounter, 3573 mSDsluCounter, 3779 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s 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, 7.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:50:10,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3573 Valid, 7672 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 859 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2021-11-23 03:50:10,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16081 states. [2021-11-23 03:50:12,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16081 to 16060. [2021-11-23 03:50:12,747 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) [2021-11-23 03:50:12,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16060 states to 16060 states and 24262 transitions. [2021-11-23 03:50:12,871 INFO L78 Accepts]: Start accepts. Automaton has 16060 states and 24262 transitions. Word has length 216 [2021-11-23 03:50:12,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:50:12,873 INFO L470 AbstractCegarLoop]: Abstraction has 16060 states and 24262 transitions. [2021-11-23 03:50:12,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (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) [2021-11-23 03:50:12,874 INFO L276 IsEmpty]: Start isEmpty. Operand 16060 states and 24262 transitions. [2021-11-23 03:50:12,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-23 03:50:12,928 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:50:12,929 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:50:12,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:50:12,930 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:50:12,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:50:12,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1146999482, now seen corresponding path program 1 times [2021-11-23 03:50:12,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:50:12,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093952899] [2021-11-23 03:50:12,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:50:12,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:50:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:50:13,734 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-11-23 03:50:13,735 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:50:13,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093952899] [2021-11-23 03:50:13,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093952899] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:50:13,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:50:13,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:50:13,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772086942] [2021-11-23 03:50:13,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:50:13,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:50:13,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:50:13,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:50:13,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:50:13,739 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) [2021-11-23 03:50:22,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:22,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:50:22,856 INFO L93 Difference]: Finished difference Result 38790 states and 58642 transitions. [2021-11-23 03:50:22,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:50:22,857 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 [2021-11-23 03:50:22,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:50:23,065 INFO L225 Difference]: With dead ends: 38790 [2021-11-23 03:50:23,065 INFO L226 Difference]: Without dead ends: 22757 [2021-11-23 03:50:23,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:50:23,315 INFO L933 BasicCegarLoop]: 5790 mSDtfsCounter, 2598 mSDsluCounter, 3854 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s 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, 8.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:50:23,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2598 Valid, 9222 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1186 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2021-11-23 03:50:23,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22757 states. [2021-11-23 03:50:25,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22757 to 22751. [2021-11-23 03:50:25,227 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) [2021-11-23 03:50:25,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22751 states to 22751 states and 34355 transitions. [2021-11-23 03:50:25,391 INFO L78 Accepts]: Start accepts. Automaton has 22751 states and 34355 transitions. Word has length 217 [2021-11-23 03:50:25,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:50:25,392 INFO L470 AbstractCegarLoop]: Abstraction has 22751 states and 34355 transitions. [2021-11-23 03:50:25,393 INFO L471 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) [2021-11-23 03:50:25,393 INFO L276 IsEmpty]: Start isEmpty. Operand 22751 states and 34355 transitions. [2021-11-23 03:50:25,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-11-23 03:50:25,445 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:50:25,446 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:50:25,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:50:25,446 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:50:25,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:50:25,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1104180102, now seen corresponding path program 1 times [2021-11-23 03:50:25,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:50:25,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655766755] [2021-11-23 03:50:25,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:50:25,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:50:25,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:50:26,044 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2021-11-23 03:50:26,045 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:50:26,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655766755] [2021-11-23 03:50:26,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655766755] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:50:26,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:50:26,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:50:26,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995873861] [2021-11-23 03:50:26,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:50:26,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:50:26,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:50:26,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:50:26,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:50:26,049 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) [2021-11-23 03:50:32,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:32,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:50:32,973 INFO L93 Difference]: Finished difference Result 48748 states and 73555 transitions. [2021-11-23 03:50:32,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:50:32,974 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 [2021-11-23 03:50:32,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:50:33,184 INFO L225 Difference]: With dead ends: 48748 [2021-11-23 03:50:33,184 INFO L226 Difference]: Without dead ends: 26024 [2021-11-23 03:50:33,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:50:33,429 INFO L933 BasicCegarLoop]: 4067 mSDtfsCounter, 2552 mSDsluCounter, 3869 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s 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, 6.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:50:33,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2552 Valid, 7511 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 887 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2021-11-23 03:50:33,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26024 states. [2021-11-23 03:50:35,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26024 to 26022. [2021-11-23 03:50:35,199 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) [2021-11-23 03:50:35,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26022 states to 26022 states and 39231 transitions. [2021-11-23 03:50:35,379 INFO L78 Accepts]: Start accepts. Automaton has 26022 states and 39231 transitions. Word has length 230 [2021-11-23 03:50:35,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:50:35,380 INFO L470 AbstractCegarLoop]: Abstraction has 26022 states and 39231 transitions. [2021-11-23 03:50:35,381 INFO L471 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) [2021-11-23 03:50:35,381 INFO L276 IsEmpty]: Start isEmpty. Operand 26022 states and 39231 transitions. [2021-11-23 03:50:35,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-11-23 03:50:35,494 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:50:35,495 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:50:35,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:50:35,495 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:50:35,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:50:35,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1847707731, now seen corresponding path program 1 times [2021-11-23 03:50:35,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:50:35,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422427401] [2021-11-23 03:50:35,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:50:35,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:50:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:50:35,902 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2021-11-23 03:50:35,902 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:50:35,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422427401] [2021-11-23 03:50:35,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422427401] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:50:35,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:50:35,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:50:35,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457770329] [2021-11-23 03:50:35,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:50:35,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:50:35,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:50:35,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:50:35,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:50:35,906 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) [2021-11-23 03:50:44,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:45,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:50:45,403 INFO L93 Difference]: Finished difference Result 59938 states and 90358 transitions. [2021-11-23 03:50:45,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:50:45,405 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 [2021-11-23 03:50:45,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:50:45,696 INFO L225 Difference]: With dead ends: 59938 [2021-11-23 03:50:45,696 INFO L226 Difference]: Without dead ends: 37138 [2021-11-23 03:50:46,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:50:46,088 INFO L933 BasicCegarLoop]: 6650 mSDtfsCounter, 3564 mSDsluCounter, 3887 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s 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, 8.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:50:46,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3564 Valid, 10106 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1287 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2021-11-23 03:50:46,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37138 states. [2021-11-23 03:50:48,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37138 to 37113. [2021-11-23 03:50:48,296 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) [2021-11-23 03:50:48,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37113 states to 37113 states and 55935 transitions. [2021-11-23 03:50:48,758 INFO L78 Accepts]: Start accepts. Automaton has 37113 states and 55935 transitions. Word has length 272 [2021-11-23 03:50:48,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:50:48,760 INFO L470 AbstractCegarLoop]: Abstraction has 37113 states and 55935 transitions. [2021-11-23 03:50:48,760 INFO L471 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) [2021-11-23 03:50:48,760 INFO L276 IsEmpty]: Start isEmpty. Operand 37113 states and 55935 transitions. [2021-11-23 03:50:48,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-11-23 03:50:48,835 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:50:48,835 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:50:48,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:50:48,836 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:50:48,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:50:48,836 INFO L85 PathProgramCache]: Analyzing trace with hash -966427155, now seen corresponding path program 1 times [2021-11-23 03:50:48,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:50:48,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468111972] [2021-11-23 03:50:48,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:50:48,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:50:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:50:49,170 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2021-11-23 03:50:49,170 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:50:49,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468111972] [2021-11-23 03:50:49,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468111972] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:50:49,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:50:49,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:50:49,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377852167] [2021-11-23 03:50:49,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:50:49,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:50:49,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:50:49,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:50:49,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:50:49,173 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) [2021-11-23 03:50:57,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:58,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:50:58,441 INFO L93 Difference]: Finished difference Result 107436 states and 161861 transitions. [2021-11-23 03:50:58,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:50:58,442 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 [2021-11-23 03:50:58,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:50:58,931 INFO L225 Difference]: With dead ends: 107436 [2021-11-23 03:50:58,932 INFO L226 Difference]: Without dead ends: 70350 [2021-11-23 03:50:59,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:50:59,137 INFO L933 BasicCegarLoop]: 4362 mSDtfsCounter, 3570 mSDsluCounter, 3889 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s 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, 6.9s IncrementalHoareTripleChecker+Time [2021-11-23 03:50:59,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3570 Valid, 7820 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 895 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2021-11-23 03:50:59,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70350 states. [2021-11-23 03:51:02,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70350 to 70325. [2021-11-23 03:51:02,678 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) [2021-11-23 03:51:03,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70325 states to 70325 states and 105834 transitions. [2021-11-23 03:51:03,167 INFO L78 Accepts]: Start accepts. Automaton has 70325 states and 105834 transitions. Word has length 273 [2021-11-23 03:51:03,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:51:03,168 INFO L470 AbstractCegarLoop]: Abstraction has 70325 states and 105834 transitions. [2021-11-23 03:51:03,168 INFO L471 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) [2021-11-23 03:51:03,169 INFO L276 IsEmpty]: Start isEmpty. Operand 70325 states and 105834 transitions. [2021-11-23 03:51:03,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-11-23 03:51:03,288 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:51:03,288 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:51:03,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 03:51:03,289 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:51:03,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:51:03,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1923210462, now seen corresponding path program 1 times [2021-11-23 03:51:03,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:51:03,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228634987] [2021-11-23 03:51:03,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:51:03,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:51:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:51:03,936 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2021-11-23 03:51:03,936 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:51:03,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228634987] [2021-11-23 03:51:03,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228634987] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:51:03,937 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:51:03,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:51:03,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241711379] [2021-11-23 03:51:03,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:51:03,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:51:03,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:51:03,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:51:03,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:51:03,941 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) [2021-11-23 03:51:13,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:51:14,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:51:14,178 INFO L93 Difference]: Finished difference Result 206859 states and 311245 transitions. [2021-11-23 03:51:14,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:51:14,179 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 [2021-11-23 03:51:14,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:51:14,920 INFO L225 Difference]: With dead ends: 206859 [2021-11-23 03:51:14,920 INFO L226 Difference]: Without dead ends: 136561 [2021-11-23 03:51:15,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:51:15,184 INFO L933 BasicCegarLoop]: 4377 mSDtfsCounter, 3568 mSDsluCounter, 3889 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s 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, 5.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:51:15,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3568 Valid, 7835 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 894 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2021-11-23 03:51:15,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136561 states. [2021-11-23 03:51:22,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136561 to 136536. [2021-11-23 03:51:22,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136536 states, 81701 states have (on average 1.3430190572942804) internal successors, (109726), 86612 states have internal predecessors, (109726), 47391 states have call successors, (47391), 7504 states have call predecessors, (47391), 7443 states have return successors, (48112), 44943 states have call predecessors, (48112), 47391 states have call successors, (48112) [2021-11-23 03:51:23,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136536 states to 136536 states and 205229 transitions. [2021-11-23 03:51:23,470 INFO L78 Accepts]: Start accepts. Automaton has 136536 states and 205229 transitions. Word has length 275 [2021-11-23 03:51:23,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:51:23,471 INFO L470 AbstractCegarLoop]: Abstraction has 136536 states and 205229 transitions. [2021-11-23 03:51:23,471 INFO L471 AbstractCegarLoop]: INTERPOLANT 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) [2021-11-23 03:51:23,471 INFO L276 IsEmpty]: Start isEmpty. Operand 136536 states and 205229 transitions. [2021-11-23 03:51:23,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-11-23 03:51:23,590 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:51:23,591 INFO L514 BasicCegarLoop]: 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, 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] [2021-11-23 03:51:23,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 03:51:23,591 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:51:23,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:51:23,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1515834779, now seen corresponding path program 1 times [2021-11-23 03:51:23,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:51:23,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491714074] [2021-11-23 03:51:23,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:51:23,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:51:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:51:23,900 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2021-11-23 03:51:23,901 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:51:23,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491714074] [2021-11-23 03:51:23,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491714074] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:51:23,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:51:23,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:51:23,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745870213] [2021-11-23 03:51:23,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:51:23,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:51:23,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:51:23,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:51:23,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:51:23,904 INFO L87 Difference]: Start difference. First operand 136536 states and 205229 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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)