./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee055dd-59b8-4250-8985-a6cd4256367a/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee055dd-59b8-4250-8985-a6cd4256367a/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee055dd-59b8-4250-8985-a6cd4256367a/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee055dd-59b8-4250-8985-a6cd4256367a/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee055dd-59b8-4250-8985-a6cd4256367a/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee055dd-59b8-4250-8985-a6cd4256367a/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ee9ed3068f3b87df6cf8a5420a13d45365c61647fcde61bb8adac513f0f70bd0 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:48:03,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:48:03,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:48:03,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:48:03,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:48:03,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:48:03,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:48:03,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:48:03,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:48:03,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:48:03,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:48:03,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:48:03,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:48:03,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:48:03,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:48:03,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:48:03,307 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:48:03,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:48:03,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:48:03,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:48:03,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:48:03,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:48:03,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:48:03,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:48:03,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:48:03,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:48:03,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:48:03,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:48:03,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:48:03,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:48:03,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:48:03,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:48:03,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:48:03,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:48:03,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:48:03,332 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:48:03,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:48:03,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:48:03,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:48:03,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:48:03,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:48:03,338 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee055dd-59b8-4250-8985-a6cd4256367a/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 18:48:03,364 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:48:03,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:48:03,365 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:48:03,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:48:03,366 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:48:03,366 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:48:03,367 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:48:03,367 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:48:03,367 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:48:03,367 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:48:03,368 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:48:03,368 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:48:03,368 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:48:03,368 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:48:03,368 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:48:03,369 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:48:03,369 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:48:03,369 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:48:03,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:48:03,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:48:03,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:48:03,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:48:03,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:48:03,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:48:03,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:48:03,372 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:48:03,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:48:03,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:48:03,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:48:03,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:48:03,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:48:03,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:48:03,373 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:48:03,374 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:48:03,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:48:03,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:48:03,374 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:48:03,375 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:48:03,375 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_bee055dd-59b8-4250-8985-a6cd4256367a/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee055dd-59b8-4250-8985-a6cd4256367a/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee9ed3068f3b87df6cf8a5420a13d45365c61647fcde61bb8adac513f0f70bd0 [2021-11-25 18:48:03,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:48:03,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:48:03,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:48:03,621 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:48:03,622 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:48:03,623 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee055dd-59b8-4250-8985-a6cd4256367a/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-25 18:48:03,700 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee055dd-59b8-4250-8985-a6cd4256367a/bin/utaipan-eEHZpOm5b7/data/fbcfd61d7/d1830ba5cbf34ffd8b685b6f39746a03/FLAGfc8129e74 [2021-11-25 18:48:04,717 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:48:04,717 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee055dd-59b8-4250-8985-a6cd4256367a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-25 18:48:04,778 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee055dd-59b8-4250-8985-a6cd4256367a/bin/utaipan-eEHZpOm5b7/data/fbcfd61d7/d1830ba5cbf34ffd8b685b6f39746a03/FLAGfc8129e74 [2021-11-25 18:48:05,026 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee055dd-59b8-4250-8985-a6cd4256367a/bin/utaipan-eEHZpOm5b7/data/fbcfd61d7/d1830ba5cbf34ffd8b685b6f39746a03 [2021-11-25 18:48:05,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:48:05,030 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:48:05,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:48:05,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:48:05,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:48:05,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:48:05" (1/1) ... [2021-11-25 18:48:05,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@699449f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:48:05, skipping insertion in model container [2021-11-25 18:48:05,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:48:05" (1/1) ... [2021-11-25 18:48:05,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:48:05,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:48:09,688 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_bee055dd-59b8-4250-8985-a6cd4256367a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[464872,464885] [2021-11-25 18:48:09,691 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_bee055dd-59b8-4250-8985-a6cd4256367a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[465017,465030] [2021-11-25 18:48:09,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:48:09,796 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:48:10,309 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_bee055dd-59b8-4250-8985-a6cd4256367a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[464872,464885] [2021-11-25 18:48:10,309 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_bee055dd-59b8-4250-8985-a6cd4256367a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[465017,465030] [2021-11-25 18:48:10,316 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:48:10,677 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:48:10,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:48:10 WrapperNode [2021-11-25 18:48:10,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:48:10,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:48:10,679 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:48:10,679 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:48:10,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:48:10" (1/1) ... [2021-11-25 18:48:10,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:48:10" (1/1) ... [2021-11-25 18:48:11,177 INFO L137 Inliner]: procedures = 567, calls = 4460, calls flagged for inlining = 273, calls inlined = 252, statements flattened = 9108 [2021-11-25 18:48:11,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:48:11,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:48:11,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:48:11,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:48:11,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:48:10" (1/1) ... [2021-11-25 18:48:11,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:48:10" (1/1) ... [2021-11-25 18:48:11,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:48:10" (1/1) ... [2021-11-25 18:48:11,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:48:10" (1/1) ... [2021-11-25 18:48:11,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:48:10" (1/1) ... [2021-11-25 18:48:11,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:48:10" (1/1) ... [2021-11-25 18:48:11,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:48:10" (1/1) ... [2021-11-25 18:48:11,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:48:11,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:48:11,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:48:11,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:48:11,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:48:10" (1/1) ... [2021-11-25 18:48:11,606 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:48:11,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee055dd-59b8-4250-8985-a6cd4256367a/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:48:11,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee055dd-59b8-4250-8985-a6cd4256367a/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:48:11,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee055dd-59b8-4250-8985-a6cd4256367a/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:48:11,680 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-25 18:48:11,681 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-25 18:48:11,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 18:48:11,681 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 18:48:11,681 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-25 18:48:11,681 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-25 18:48:11,682 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-11-25 18:48:11,682 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-11-25 18:48:11,682 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2021-11-25 18:48:11,682 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2021-11-25 18:48:11,682 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 18:48:11,682 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 18:48:11,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_88 [2021-11-25 18:48:11,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_88 [2021-11-25 18:48:11,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 18:48:11,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 18:48:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-25 18:48:11,684 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-25 18:48:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2021-11-25 18:48:11,684 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2021-11-25 18:48:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2021-11-25 18:48:11,685 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2021-11-25 18:48:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-25 18:48:11,689 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-25 18:48:11,689 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2021-11-25 18:48:11,689 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2021-11-25 18:48:11,689 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 18:48:11,689 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 18:48:11,689 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-25 18:48:11,690 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-25 18:48:11,690 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-25 18:48:11,690 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-25 18:48:11,690 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2021-11-25 18:48:11,691 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2021-11-25 18:48:11,691 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-25 18:48:11,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-25 18:48:11,692 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-25 18:48:11,692 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-25 18:48:11,692 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 18:48:11,692 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 18:48:11,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_window_lock_of_vortex_private [2021-11-25 18:48:11,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_window_lock_of_vortex_private [2021-11-25 18:48:11,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vortex_private [2021-11-25 18:48:11,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vortex_private [2021-11-25 18:48:11,693 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2021-11-25 18:48:11,693 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2021-11-25 18:48:11,694 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 18:48:11,694 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 18:48:11,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 18:48:11,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 18:48:11,695 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 18:48:11,696 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 18:48:11,696 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-25 18:48:11,696 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-25 18:48:11,696 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 18:48:11,697 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 18:48:11,697 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-25 18:48:11,697 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-25 18:48:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 18:48:11,698 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 18:48:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 18:48:11,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 18:48:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-25 18:48:11,699 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-25 18:48:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-25 18:48:11,699 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-25 18:48:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-25 18:48:11,699 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-25 18:48:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:48:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2021-11-25 18:48:11,700 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2021-11-25 18:48:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-25 18:48:11,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-25 18:48:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 18:48:11,700 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 18:48:11,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_118 [2021-11-25 18:48:11,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_118 [2021-11-25 18:48:11,701 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 18:48:11,701 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 18:48:11,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_114 [2021-11-25 18:48:11,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_114 [2021-11-25 18:48:11,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 18:48:11,702 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2021-11-25 18:48:11,702 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2021-11-25 18:48:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-25 18:48:11,703 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-25 18:48:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2021-11-25 18:48:11,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2021-11-25 18:48:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 18:48:11,704 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 18:48:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-25 18:48:11,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-25 18:48:11,705 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 18:48:11,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 18:48:11,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 18:48:11,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_106 [2021-11-25 18:48:11,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_106 [2021-11-25 18:48:11,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 18:48:11,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 18:48:11,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:48:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2021-11-25 18:48:11,707 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2021-11-25 18:48:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-25 18:48:11,707 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-25 18:48:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 18:48:11,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 18:48:11,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 18:48:11,708 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 18:48:11,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 18:48:11,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 18:48:11,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 18:48:11,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 18:48:11,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 18:48:11,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 18:48:11,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 18:48:11,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 18:48:11,714 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2021-11-25 18:48:11,714 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2021-11-25 18:48:11,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_132 [2021-11-25 18:48:11,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_132 [2021-11-25 18:48:11,720 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-11-25 18:48:11,720 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-11-25 18:48:11,720 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-25 18:48:11,720 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-25 18:48:11,721 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2021-11-25 18:48:11,721 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2021-11-25 18:48:11,721 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 18:48:11,721 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 18:48:11,721 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2021-11-25 18:48:11,721 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2021-11-25 18:48:11,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:48:11,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 18:48:11,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 18:48:11,722 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2021-11-25 18:48:11,722 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2021-11-25 18:48:11,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 18:48:11,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 18:48:11,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-25 18:48:11,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-25 18:48:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-25 18:48:11,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-25 18:48:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-25 18:48:11,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-25 18:48:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:48:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 18:48:11,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 18:48:11,724 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 18:48:11,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 18:48:11,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:48:11,724 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-11-25 18:48:11,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-11-25 18:48:11,724 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:48:11,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:48:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-25 18:48:11,725 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-25 18:48:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:48:11,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:48:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-25 18:48:11,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-25 18:48:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-25 18:48:11,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-25 18:48:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2021-11-25 18:48:11,727 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2021-11-25 18:48:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-25 18:48:11,727 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-25 18:48:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2021-11-25 18:48:11,727 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2021-11-25 18:48:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-25 18:48:11,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-25 18:48:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 18:48:11,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 18:48:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2021-11-25 18:48:11,728 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2021-11-25 18:48:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2021-11-25 18:48:11,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2021-11-25 18:48:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-25 18:48:11,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-25 18:48:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2021-11-25 18:48:11,730 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2021-11-25 18:48:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 18:48:11,730 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 18:48:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-25 18:48:11,730 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-25 18:48:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2021-11-25 18:48:11,732 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2021-11-25 18:48:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 18:48:11,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 18:48:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_window_lock_of_vortex_private [2021-11-25 18:48:11,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_window_lock_of_vortex_private [2021-11-25 18:48:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2021-11-25 18:48:11,733 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2021-11-25 18:48:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-25 18:48:11,733 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-25 18:48:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2021-11-25 18:48:11,733 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2021-11-25 18:48:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-25 18:48:11,734 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-25 18:48:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2021-11-25 18:48:11,734 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2021-11-25 18:48:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2021-11-25 18:48:11,734 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2021-11-25 18:48:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-25 18:48:11,734 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-25 18:48:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:48:11,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:48:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2021-11-25 18:48:11,735 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2021-11-25 18:48:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 18:48:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 18:48:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 18:48:11,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 18:48:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 18:48:11,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 18:48:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2021-11-25 18:48:11,736 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2021-11-25 18:48:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-25 18:48:11,736 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-25 18:48:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 18:48:11,737 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 18:48:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-25 18:48:11,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-25 18:48:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 18:48:11,737 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 18:48:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-25 18:48:11,737 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-25 18:48:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:48:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_111 [2021-11-25 18:48:11,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_111 [2021-11-25 18:48:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-25 18:48:11,738 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-25 18:48:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 18:48:11,738 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 18:48:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:48:11,739 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2021-11-25 18:48:11,739 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2021-11-25 18:48:11,739 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2021-11-25 18:48:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2021-11-25 18:48:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 18:48:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 18:48:11,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 18:48:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-25 18:48:11,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-25 18:48:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 18:48:11,744 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 18:48:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 18:48:11,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 18:48:11,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-25 18:48:11,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-25 18:48:11,746 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-25 18:48:11,746 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-25 18:48:11,746 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2021-11-25 18:48:11,747 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2021-11-25 18:48:11,747 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2021-11-25 18:48:11,747 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2021-11-25 18:48:11,747 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-25 18:48:11,747 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-25 18:48:11,747 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-25 18:48:11,747 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-25 18:48:11,747 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2021-11-25 18:48:11,748 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2021-11-25 18:48:11,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_105 [2021-11-25 18:48:11,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_105 [2021-11-25 18:48:11,748 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-25 18:48:11,748 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-25 18:48:11,748 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 18:48:11,748 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 18:48:11,748 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-25 18:48:11,749 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-25 18:48:11,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_133 [2021-11-25 18:48:11,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_133 [2021-11-25 18:48:11,749 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 18:48:11,749 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 18:48:11,749 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2021-11-25 18:48:11,749 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2021-11-25 18:48:11,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:48:11,750 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2021-11-25 18:48:11,750 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2021-11-25 18:48:11,750 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-25 18:48:11,750 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-25 18:48:11,750 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-25 18:48:11,750 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-25 18:48:11,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 18:48:11,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 18:48:11,751 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2021-11-25 18:48:11,751 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2021-11-25 18:48:11,751 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2021-11-25 18:48:11,751 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2021-11-25 18:48:11,751 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-25 18:48:11,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-25 18:48:11,751 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2021-11-25 18:48:11,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2021-11-25 18:48:11,752 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-25 18:48:11,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-25 18:48:11,752 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2021-11-25 18:48:11,752 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2021-11-25 18:48:11,752 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2021-11-25 18:48:11,752 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2021-11-25 18:48:11,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 18:48:11,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 18:48:11,753 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-25 18:48:11,753 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-25 18:48:11,753 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-25 18:48:11,753 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-25 18:48:11,753 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-25 18:48:11,753 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-25 18:48:11,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_vortex_private [2021-11-25 18:48:11,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_vortex_private [2021-11-25 18:48:11,754 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 18:48:11,754 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 18:48:11,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_112 [2021-11-25 18:48:11,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_112 [2021-11-25 18:48:11,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_113 [2021-11-25 18:48:11,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_113 [2021-11-25 18:48:11,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:48:11,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 18:48:11,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 18:48:11,755 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-25 18:48:11,755 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-25 18:48:12,968 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:48:12,975 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:48:14,458 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 18:48:21,398 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 18:48:21,490 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:48:25,397 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:48:25,397 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 18:48:25,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:48:25 BoogieIcfgContainer [2021-11-25 18:48:25,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:48:25,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:48:25,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:48:25,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:48:25,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:48:05" (1/3) ... [2021-11-25 18:48:25,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da5b9dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:48:25, skipping insertion in model container [2021-11-25 18:48:25,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:48:10" (2/3) ... [2021-11-25 18:48:25,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da5b9dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:48:25, skipping insertion in model container [2021-11-25 18:48:25,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:48:25" (3/3) ... [2021-11-25 18:48:25,413 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-25 18:48:25,419 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:48:25,419 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:48:25,496 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:48:25,513 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:48:25,514 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:48:25,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 2273 states, 1319 states have (on average 1.332827899924185) internal successors, (1758), 1388 states have internal predecessors, (1758), 803 states have call successors, (803), 151 states have call predecessors, (803), 150 states have return successors, (794), 779 states have call predecessors, (794), 794 states have call successors, (794) [2021-11-25 18:48:25,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-25 18:48:25,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:48:25,640 INFO L514 BasicCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:48:25,641 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:48:25,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:48:25,647 INFO L85 PathProgramCache]: Analyzing trace with hash 316822121, now seen corresponding path program 1 times [2021-11-25 18:48:25,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:48:25,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561598242] [2021-11-25 18:48:25,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:48:25,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:48:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:48:26,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2021-11-25 18:48:26,691 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:48:26,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561598242] [2021-11-25 18:48:26,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561598242] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:48:26,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:48:26,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:48:26,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983739064] [2021-11-25 18:48:26,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:48:26,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:48:26,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:48:26,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:48:26,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:48:26,745 INFO L87 Difference]: Start difference. First operand has 2273 states, 1319 states have (on average 1.332827899924185) internal successors, (1758), 1388 states have internal predecessors, (1758), 803 states have call successors, (803), 151 states have call predecessors, (803), 150 states have return successors, (794), 779 states have call predecessors, (794), 794 states have call successors, (794) Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-25 18:48:30,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:48:33,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:48:34,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:48:34,815 INFO L93 Difference]: Finished difference Result 6493 states and 9664 transitions. [2021-11-25 18:48:34,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:48:34,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 222 [2021-11-25 18:48:34,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:48:34,877 INFO L225 Difference]: With dead ends: 6493 [2021-11-25 18:48:34,877 INFO L226 Difference]: Without dead ends: 4156 [2021-11-25 18:48:34,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:48:34,912 INFO L933 BasicCegarLoop]: 3586 mSDtfsCounter, 2911 mSDsluCounter, 3297 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2912 SdHoareTripleChecker+Valid, 6441 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:48:34,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2912 Valid, 6441 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 964 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2021-11-25 18:48:34,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4156 states. [2021-11-25 18:48:35,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4156 to 4152. [2021-11-25 18:48:35,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4152 states, 2442 states have (on average 1.3255528255528255) internal successors, (3237), 2572 states have internal predecessors, (3237), 1421 states have call successors, (1421), 288 states have call predecessors, (1421), 288 states have return successors, (1422), 1390 states have call predecessors, (1422), 1421 states have call successors, (1422) [2021-11-25 18:48:35,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4152 states to 4152 states and 6080 transitions. [2021-11-25 18:48:35,338 INFO L78 Accepts]: Start accepts. Automaton has 4152 states and 6080 transitions. Word has length 222 [2021-11-25 18:48:35,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:48:35,342 INFO L470 AbstractCegarLoop]: Abstraction has 4152 states and 6080 transitions. [2021-11-25 18:48:35,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-25 18:48:35,344 INFO L276 IsEmpty]: Start isEmpty. Operand 4152 states and 6080 transitions. [2021-11-25 18:48:35,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-25 18:48:35,357 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:48:35,357 INFO L514 BasicCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:48:35,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:48:35,358 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:48:35,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:48:35,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1946518292, now seen corresponding path program 1 times [2021-11-25 18:48:35,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:48:35,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348594599] [2021-11-25 18:48:35,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:48:35,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:48:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:48:35,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2021-11-25 18:48:35,874 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:48:35,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348594599] [2021-11-25 18:48:35,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348594599] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:48:35,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:48:35,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:48:35,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395608495] [2021-11-25 18:48:35,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:48:35,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:48:35,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:48:35,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:48:35,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:48:35,883 INFO L87 Difference]: Start difference. First operand 4152 states and 6080 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-25 18:48:39,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:48:41,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:48:43,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:48:43,469 INFO L93 Difference]: Finished difference Result 11938 states and 17473 transitions. [2021-11-25 18:48:43,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:48:43,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 223 [2021-11-25 18:48:43,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:48:43,547 INFO L225 Difference]: With dead ends: 11938 [2021-11-25 18:48:43,548 INFO L226 Difference]: Without dead ends: 7821 [2021-11-25 18:48:43,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:48:43,577 INFO L933 BasicCegarLoop]: 4033 mSDtfsCounter, 2764 mSDsluCounter, 3164 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2766 SdHoareTripleChecker+Valid, 6775 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:48:43,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2766 Valid, 6775 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1087 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2021-11-25 18:48:43,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7821 states. [2021-11-25 18:48:44,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7821 to 7814. [2021-11-25 18:48:44,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7814 states, 4583 states have (on average 1.3176958324241763) internal successors, (6039), 4838 states have internal predecessors, (6039), 2670 states have call successors, (2670), 560 states have call predecessors, (2670), 560 states have return successors, (2674), 2607 states have call predecessors, (2674), 2670 states have call successors, (2674) [2021-11-25 18:48:44,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7814 states to 7814 states and 11383 transitions. [2021-11-25 18:48:44,187 INFO L78 Accepts]: Start accepts. Automaton has 7814 states and 11383 transitions. Word has length 223 [2021-11-25 18:48:44,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:48:44,188 INFO L470 AbstractCegarLoop]: Abstraction has 7814 states and 11383 transitions. [2021-11-25 18:48:44,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-25 18:48:44,189 INFO L276 IsEmpty]: Start isEmpty. Operand 7814 states and 11383 transitions. [2021-11-25 18:48:44,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-25 18:48:44,202 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:48:44,202 INFO L514 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 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] [2021-11-25 18:48:44,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:48:44,203 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:48:44,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:48:44,204 INFO L85 PathProgramCache]: Analyzing trace with hash -888132008, now seen corresponding path program 1 times [2021-11-25 18:48:44,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:48:44,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765636662] [2021-11-25 18:48:44,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:48:44,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:48:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:48:44,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2021-11-25 18:48:44,650 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:48:44,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765636662] [2021-11-25 18:48:44,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765636662] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:48:44,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:48:44,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:48:44,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234793433] [2021-11-25 18:48:44,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:48:44,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:48:44,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:48:44,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:48:44,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:48:44,654 INFO L87 Difference]: Start difference. First operand 7814 states and 11383 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-25 18:48:47,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:48:49,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:48:52,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:48:52,050 INFO L93 Difference]: Finished difference Result 22696 states and 33154 transitions. [2021-11-25 18:48:52,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:48:52,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 236 [2021-11-25 18:48:52,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:48:52,225 INFO L225 Difference]: With dead ends: 22696 [2021-11-25 18:48:52,225 INFO L226 Difference]: Without dead ends: 14917 [2021-11-25 18:48:52,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:48:52,283 INFO L933 BasicCegarLoop]: 3528 mSDtfsCounter, 2856 mSDsluCounter, 3200 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 6283 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:48:52,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2858 Valid, 6283 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 910 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2021-11-25 18:48:52,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14917 states. [2021-11-25 18:48:53,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14917 to 14906. [2021-11-25 18:48:53,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14906 states, 8734 states have (on average 1.315548431417449) internal successors, (11490), 9220 states have internal predecessors, (11490), 5074 states have call successors, (5074), 1105 states have call predecessors, (5074), 1097 states have return successors, (5245), 4924 states have call predecessors, (5245), 5074 states have call successors, (5245) [2021-11-25 18:48:53,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14906 states to 14906 states and 21809 transitions. [2021-11-25 18:48:53,344 INFO L78 Accepts]: Start accepts. Automaton has 14906 states and 21809 transitions. Word has length 236 [2021-11-25 18:48:53,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:48:53,346 INFO L470 AbstractCegarLoop]: Abstraction has 14906 states and 21809 transitions. [2021-11-25 18:48:53,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-25 18:48:53,347 INFO L276 IsEmpty]: Start isEmpty. Operand 14906 states and 21809 transitions. [2021-11-25 18:48:53,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-11-25 18:48:53,361 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:48:53,361 INFO L514 BasicCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:48:53,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:48:53,362 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:48:53,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:48:53,363 INFO L85 PathProgramCache]: Analyzing trace with hash -882869683, now seen corresponding path program 1 times [2021-11-25 18:48:53,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:48:53,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530092582] [2021-11-25 18:48:53,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:48:53,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:48:53,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:48:53,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1167 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2021-11-25 18:48:53,783 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:48:53,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530092582] [2021-11-25 18:48:53,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530092582] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:48:53,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:48:53,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:48:53,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231107119] [2021-11-25 18:48:53,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:48:53,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:48:53,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:48:53,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:48:53,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:48:53,786 INFO L87 Difference]: Start difference. First operand 14906 states and 21809 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, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-25 18:48:57,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:49:01,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:49:01,815 INFO L93 Difference]: Finished difference Result 43667 states and 63848 transitions. [2021-11-25 18:49:01,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:49:01,817 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, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 247 [2021-11-25 18:49:01,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:49:02,116 INFO L225 Difference]: With dead ends: 43667 [2021-11-25 18:49:02,117 INFO L226 Difference]: Without dead ends: 28796 [2021-11-25 18:49:02,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:49:02,201 INFO L933 BasicCegarLoop]: 4107 mSDtfsCounter, 2878 mSDsluCounter, 3214 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2880 SdHoareTripleChecker+Valid, 6880 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:49:02,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2880 Valid, 6880 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1083 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2021-11-25 18:49:02,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28796 states. [2021-11-25 18:49:03,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28796 to 28777. [2021-11-25 18:49:03,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28777 states, 16871 states have (on average 1.312251793017604) internal successors, (22139), 17835 states have internal predecessors, (22139), 9760 states have call successors, (9760), 2161 states have call predecessors, (9760), 2145 states have return successors, (10094), 9455 states have call predecessors, (10094), 9760 states have call successors, (10094) [2021-11-25 18:49:03,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28777 states to 28777 states and 41993 transitions. [2021-11-25 18:49:04,001 INFO L78 Accepts]: Start accepts. Automaton has 28777 states and 41993 transitions. Word has length 247 [2021-11-25 18:49:04,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:49:04,002 INFO L470 AbstractCegarLoop]: Abstraction has 28777 states and 41993 transitions. [2021-11-25 18:49:04,002 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, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-25 18:49:04,002 INFO L276 IsEmpty]: Start isEmpty. Operand 28777 states and 41993 transitions. [2021-11-25 18:49:04,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-11-25 18:49:04,032 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:49:04,032 INFO L514 BasicCegarLoop]: trace histogram [20, 17, 17, 17, 17, 17, 17, 4, 4, 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] [2021-11-25 18:49:04,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:49:04,033 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:49:04,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:49:04,033 INFO L85 PathProgramCache]: Analyzing trace with hash 412680149, now seen corresponding path program 1 times [2021-11-25 18:49:04,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:49:04,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556019494] [2021-11-25 18:49:04,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:49:04,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:49:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:49:04,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1217 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1214 trivial. 0 not checked. [2021-11-25 18:49:04,587 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:49:04,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556019494] [2021-11-25 18:49:04,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556019494] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:49:04,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:49:04,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:49:04,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953229716] [2021-11-25 18:49:04,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:49:04,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:49:04,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:49:04,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:49:04,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:49:04,590 INFO L87 Difference]: Start difference. First operand 28777 states and 41993 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-25 18:49:08,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:49:10,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:49:12,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:49:14,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:49:14,912 INFO L93 Difference]: Finished difference Result 61512 states and 89423 transitions. [2021-11-25 18:49:14,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:49:14,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 262 [2021-11-25 18:49:14,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:49:15,102 INFO L225 Difference]: With dead ends: 61512 [2021-11-25 18:49:15,103 INFO L226 Difference]: Without dead ends: 32770 [2021-11-25 18:49:15,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:49:15,214 INFO L933 BasicCegarLoop]: 3675 mSDtfsCounter, 2544 mSDsluCounter, 3199 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2544 SdHoareTripleChecker+Valid, 6432 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:49:15,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2544 Valid, 6432 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 973 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2021-11-25 18:49:15,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32770 states. [2021-11-25 18:49:17,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32770 to 32732. [2021-11-25 18:49:17,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32732 states, 19151 states have (on average 1.3058848101926792) internal successors, (25009), 20221 states have internal predecessors, (25009), 11038 states have call successors, (11038), 2560 states have call predecessors, (11038), 2542 states have return successors, (11390), 10709 states have call predecessors, (11390), 11038 states have call successors, (11390) [2021-11-25 18:49:17,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32732 states to 32732 states and 47437 transitions. [2021-11-25 18:49:17,449 INFO L78 Accepts]: Start accepts. Automaton has 32732 states and 47437 transitions. Word has length 262 [2021-11-25 18:49:17,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:49:17,452 INFO L470 AbstractCegarLoop]: Abstraction has 32732 states and 47437 transitions. [2021-11-25 18:49:17,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-25 18:49:17,452 INFO L276 IsEmpty]: Start isEmpty. Operand 32732 states and 47437 transitions. [2021-11-25 18:49:17,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-11-25 18:49:17,475 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:49:17,476 INFO L514 BasicCegarLoop]: trace histogram [22, 17, 17, 17, 17, 17, 17, 5, 5, 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] [2021-11-25 18:49:17,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:49:17,476 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:49:17,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:49:17,477 INFO L85 PathProgramCache]: Analyzing trace with hash -399293891, now seen corresponding path program 1 times [2021-11-25 18:49:17,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:49:17,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146604005] [2021-11-25 18:49:17,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:49:17,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:49:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:49:18,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1308 trivial. 0 not checked. [2021-11-25 18:49:18,006 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:49:18,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146604005] [2021-11-25 18:49:18,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146604005] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:49:18,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:49:18,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:49:18,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610789625] [2021-11-25 18:49:18,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:49:18,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:49:18,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:49:18,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:49:18,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:49:18,010 INFO L87 Difference]: Start difference. First operand 32732 states and 47437 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-25 18:49:21,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:49:24,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:49:25,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:49:27,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:49:27,968 INFO L93 Difference]: Finished difference Result 77237 states and 111991 transitions. [2021-11-25 18:49:27,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:49:27,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 271 [2021-11-25 18:49:27,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:49:28,259 INFO L225 Difference]: With dead ends: 77237 [2021-11-25 18:49:28,260 INFO L226 Difference]: Without dead ends: 47155 [2021-11-25 18:49:28,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:49:28,568 INFO L933 BasicCegarLoop]: 5277 mSDtfsCounter, 3045 mSDsluCounter, 3197 mSDsCounter, 0 mSdLazyCounter, 1348 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3045 SdHoareTripleChecker+Valid, 8034 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:49:28,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3045 Valid, 8034 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1348 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2021-11-25 18:49:28,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47155 states. [2021-11-25 18:49:30,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47155 to 47145. [2021-11-25 18:49:30,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47145 states, 27574 states have (on average 1.3047798650903024) internal successors, (35978), 29111 states have internal predecessors, (35978), 15886 states have call successors, (15886), 3710 states have call predecessors, (15886), 3684 states have return successors, (16383), 15411 states have call predecessors, (16383), 15886 states have call successors, (16383) [2021-11-25 18:49:31,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47145 states to 47145 states and 68247 transitions. [2021-11-25 18:49:31,479 INFO L78 Accepts]: Start accepts. Automaton has 47145 states and 68247 transitions. Word has length 271 [2021-11-25 18:49:31,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:49:31,482 INFO L470 AbstractCegarLoop]: Abstraction has 47145 states and 68247 transitions. [2021-11-25 18:49:31,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-25 18:49:31,482 INFO L276 IsEmpty]: Start isEmpty. Operand 47145 states and 68247 transitions. [2021-11-25 18:49:31,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-11-25 18:49:31,500 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:49:31,501 INFO L514 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:49:31,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 18:49:31,501 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:49:31,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:49:31,502 INFO L85 PathProgramCache]: Analyzing trace with hash -49817962, now seen corresponding path program 1 times [2021-11-25 18:49:31,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:49:31,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063895487] [2021-11-25 18:49:31,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:49:31,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:49:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:49:31,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1130 trivial. 0 not checked. [2021-11-25 18:49:31,807 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:49:31,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063895487] [2021-11-25 18:49:31,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063895487] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:49:31,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:49:31,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:49:31,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080393565] [2021-11-25 18:49:31,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:49:31,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:49:31,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:49:31,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:49:31,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:49:31,811 INFO L87 Difference]: Start difference. First operand 47145 states and 68247 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, (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) [2021-11-25 18:49:34,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:49:36,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:49:40,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:49:40,728 INFO L93 Difference]: Finished difference Result 123735 states and 178303 transitions. [2021-11-25 18:49:40,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:49:40,729 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, (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 281 [2021-11-25 18:49:40,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:49:41,238 INFO L225 Difference]: With dead ends: 123735 [2021-11-25 18:49:41,238 INFO L226 Difference]: Without dead ends: 76625 [2021-11-25 18:49:41,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:49:41,422 INFO L933 BasicCegarLoop]: 3573 mSDtfsCounter, 2640 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2640 SdHoareTripleChecker+Valid, 6303 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:49:41,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2640 Valid, 6303 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 976 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2021-11-25 18:49:41,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76625 states. [2021-11-25 18:49:44,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76625 to 76580. [2021-11-25 18:49:44,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76580 states, 44882 states have (on average 1.293302437502785) internal successors, (58046), 47279 states have internal predecessors, (58046), 25503 states have call successors, (25503), 6270 states have call predecessors, (25503), 6194 states have return successors, (26390), 24693 states have call predecessors, (26390), 25503 states have call successors, (26390) [2021-11-25 18:49:45,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76580 states to 76580 states and 109939 transitions. [2021-11-25 18:49:45,061 INFO L78 Accepts]: Start accepts. Automaton has 76580 states and 109939 transitions. Word has length 281 [2021-11-25 18:49:45,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:49:45,062 INFO L470 AbstractCegarLoop]: Abstraction has 76580 states and 109939 transitions. [2021-11-25 18:49:45,062 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, (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) [2021-11-25 18:49:45,062 INFO L276 IsEmpty]: Start isEmpty. Operand 76580 states and 109939 transitions. [2021-11-25 18:49:45,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2021-11-25 18:49:45,438 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:49:45,438 INFO L514 BasicCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 6, 6, 4, 4, 4, 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] [2021-11-25 18:49:45,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 18:49:45,439 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:49:45,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:49:45,439 INFO L85 PathProgramCache]: Analyzing trace with hash -55083158, now seen corresponding path program 1 times [2021-11-25 18:49:45,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:49:45,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362053340] [2021-11-25 18:49:45,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:49:45,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:49:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:49:45,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1420 trivial. 0 not checked. [2021-11-25 18:49:45,894 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:49:45,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362053340] [2021-11-25 18:49:45,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362053340] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:49:45,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:49:45,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:49:45,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851916322] [2021-11-25 18:49:45,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:49:45,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:49:45,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:49:45,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:49:45,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:49:45,897 INFO L87 Difference]: Start difference. First operand 76580 states and 109939 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, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-25 18:49:48,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:49:49,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:49:50,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:49:55,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:49:55,839 INFO L93 Difference]: Finished difference Result 188360 states and 270600 transitions. [2021-11-25 18:49:55,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:49:55,842 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, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 302 [2021-11-25 18:49:55,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:49:56,500 INFO L225 Difference]: With dead ends: 188360 [2021-11-25 18:49:56,501 INFO L226 Difference]: Without dead ends: 111919 [2021-11-25 18:49:57,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:49:57,048 INFO L933 BasicCegarLoop]: 5277 mSDtfsCounter, 2883 mSDsluCounter, 3212 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2885 SdHoareTripleChecker+Valid, 8048 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:49:57,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2885 Valid, 8048 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1345 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2021-11-25 18:49:57,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111919 states. [2021-11-25 18:50:01,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111919 to 111854. [2021-11-25 18:50:01,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111854 states, 65609 states have (on average 1.2929171302717615) internal successors, (84827), 69152 states have internal predecessors, (84827), 37205 states have call successors, (37205), 9151 states have call predecessors, (37205), 9039 states have return successors, (38521), 35995 states have call predecessors, (38521), 37205 states have call successors, (38521) [2021-11-25 18:50:01,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111854 states to 111854 states and 160553 transitions. [2021-11-25 18:50:01,815 INFO L78 Accepts]: Start accepts. Automaton has 111854 states and 160553 transitions. Word has length 302 [2021-11-25 18:50:01,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:50:01,816 INFO L470 AbstractCegarLoop]: Abstraction has 111854 states and 160553 transitions. [2021-11-25 18:50:01,817 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, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-25 18:50:01,817 INFO L276 IsEmpty]: Start isEmpty. Operand 111854 states and 160553 transitions. [2021-11-25 18:50:01,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-11-25 18:50:01,853 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:50:01,853 INFO L514 BasicCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:50:01,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 18:50:01,854 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:50:01,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:50:01,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1843179172, now seen corresponding path program 1 times [2021-11-25 18:50:01,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:50:01,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670343132] [2021-11-25 18:50:01,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:50:01,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:50:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:50:03,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1502 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1502 trivial. 0 not checked. [2021-11-25 18:50:03,374 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:50:03,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670343132] [2021-11-25 18:50:03,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670343132] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:50:03,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:50:03,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 18:50:03,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590119349] [2021-11-25 18:50:03,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:50:03,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:50:03,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:50:03,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:50:03,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:50:03,377 INFO L87 Difference]: Start difference. First operand 111854 states and 160553 transitions. Second operand has 6 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-25 18:50:06,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:09,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:11,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:13,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:21,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:50:21,859 INFO L93 Difference]: Finished difference Result 123516 states and 176623 transitions. [2021-11-25 18:50:21,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 18:50:21,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) Word has length 333 [2021-11-25 18:50:21,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:50:22,441 INFO L225 Difference]: With dead ends: 123516 [2021-11-25 18:50:22,441 INFO L226 Difference]: Without dead ends: 123514 [2021-11-25 18:50:22,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-25 18:50:22,487 INFO L933 BasicCegarLoop]: 3080 mSDtfsCounter, 1129 mSDsluCounter, 13236 mSDsCounter, 0 mSdLazyCounter, 2960 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 14490 SdHoareTripleChecker+Invalid, 2970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2960 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:50:22,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1130 Valid, 14490 Invalid, 2970 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 2960 Invalid, 3 Unknown, 0 Unchecked, 15.3s Time] [2021-11-25 18:50:22,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123514 states. [2021-11-25 18:50:27,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123514 to 123311. [2021-11-25 18:50:27,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123311 states, 72748 states have (on average 1.2884890306262715) internal successors, (93735), 76513 states have internal predecessors, (93735), 40392 states have call successors, (40392), 10438 states have call predecessors, (40392), 10170 states have return successors, (42158), 38874 states have call predecessors, (42158), 40392 states have call successors, (42158) [2021-11-25 18:50:28,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123311 states to 123311 states and 176285 transitions. [2021-11-25 18:50:28,285 INFO L78 Accepts]: Start accepts. Automaton has 123311 states and 176285 transitions. Word has length 333 [2021-11-25 18:50:28,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:50:28,287 INFO L470 AbstractCegarLoop]: Abstraction has 123311 states and 176285 transitions. [2021-11-25 18:50:28,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-25 18:50:28,287 INFO L276 IsEmpty]: Start isEmpty. Operand 123311 states and 176285 transitions. [2021-11-25 18:50:28,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2021-11-25 18:50:28,362 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:50:28,362 INFO L514 BasicCegarLoop]: trace histogram [23, 17, 17, 17, 17, 17, 17, 9, 9, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:50:28,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 18:50:28,363 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:50:28,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:50:28,363 INFO L85 PathProgramCache]: Analyzing trace with hash -2087873674, now seen corresponding path program 1 times [2021-11-25 18:50:28,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:50:28,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579478231] [2021-11-25 18:50:28,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:50:28,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:50:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:50:28,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1462 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1450 trivial. 0 not checked. [2021-11-25 18:50:28,926 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:50:28,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579478231] [2021-11-25 18:50:28,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579478231] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:50:28,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:50:28,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:50:28,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75328075] [2021-11-25 18:50:28,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:50:28,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:50:28,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:50:28,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:50:28,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:50:28,929 INFO L87 Difference]: Start difference. First operand 123311 states and 176285 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-25 18:50:30,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:32,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:35,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []