./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade9b724-e149-47ae-a666-71217e96a0ff/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade9b724-e149-47ae-a666-71217e96a0ff/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade9b724-e149-47ae-a666-71217e96a0ff/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade9b724-e149-47ae-a666-71217e96a0ff/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade9b724-e149-47ae-a666-71217e96a0ff/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade9b724-e149-47ae-a666-71217e96a0ff/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash abfdd6ea704cd13da9f6c4fa68989a6001819ce06b341c8a00315bc983ef4819 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:16:32,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:16:32,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:16:32,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:16:32,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:16:32,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:16:32,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:16:32,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:16:32,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:16:32,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:16:32,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:16:32,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:16:32,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:16:32,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:16:32,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:16:32,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:16:32,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:16:32,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:16:32,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:16:32,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:16:32,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:16:32,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:16:32,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:16:32,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:16:32,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:16:32,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:16:32,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:16:32,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:16:32,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:16:32,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:16:32,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:16:32,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:16:32,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:16:32,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:16:32,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:16:32,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:16:32,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:16:32,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:16:32,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:16:32,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:16:32,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:16:32,660 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade9b724-e149-47ae-a666-71217e96a0ff/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:16:32,692 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:16:32,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:16:32,693 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:16:32,694 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:16:32,695 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:16:32,695 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:16:32,704 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:16:32,704 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:16:32,704 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:16:32,705 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:16:32,706 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:16:32,706 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:16:32,706 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:16:32,706 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:16:32,707 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:16:32,707 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:16:32,707 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:16:32,707 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:16:32,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:16:32,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:16:32,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:16:32,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:16:32,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:16:32,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:16:32,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:16:32,710 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:16:32,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:16:32,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:16:32,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:16:32,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:16:32,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:16:32,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:16:32,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:16:32,714 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:16:32,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:16:32,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:16:32,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:16:32,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:16:32,715 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_ade9b724-e149-47ae-a666-71217e96a0ff/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade9b724-e149-47ae-a666-71217e96a0ff/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abfdd6ea704cd13da9f6c4fa68989a6001819ce06b341c8a00315bc983ef4819 [2021-11-21 00:16:33,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:16:33,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:16:33,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:16:33,050 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:16:33,051 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:16:33,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade9b724-e149-47ae-a666-71217e96a0ff/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-21 00:16:33,109 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade9b724-e149-47ae-a666-71217e96a0ff/bin/utaipan-TEXQjIfE4P/data/29e0debdf/fa5c6212a1f1402eacab78c03aecb8d3/FLAG476071a4d [2021-11-21 00:16:34,081 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:16:34,083 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade9b724-e149-47ae-a666-71217e96a0ff/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-21 00:16:34,148 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade9b724-e149-47ae-a666-71217e96a0ff/bin/utaipan-TEXQjIfE4P/data/29e0debdf/fa5c6212a1f1402eacab78c03aecb8d3/FLAG476071a4d [2021-11-21 00:16:34,430 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade9b724-e149-47ae-a666-71217e96a0ff/bin/utaipan-TEXQjIfE4P/data/29e0debdf/fa5c6212a1f1402eacab78c03aecb8d3 [2021-11-21 00:16:34,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:16:34,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:16:34,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:16:34,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:16:34,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:16:34,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:16:34" (1/1) ... [2021-11-21 00:16:34,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28422ed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:34, skipping insertion in model container [2021-11-21 00:16:34,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:16:34" (1/1) ... [2021-11-21 00:16:34,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:16:34,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:16:38,935 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_ade9b724-e149-47ae-a666-71217e96a0ff/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422956,422969] [2021-11-21 00:16:38,938 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_ade9b724-e149-47ae-a666-71217e96a0ff/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[423101,423114] [2021-11-21 00:16:38,972 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:16:39,050 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:16:39,580 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_ade9b724-e149-47ae-a666-71217e96a0ff/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422956,422969] [2021-11-21 00:16:39,581 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_ade9b724-e149-47ae-a666-71217e96a0ff/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[423101,423114] [2021-11-21 00:16:39,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:16:39,864 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:16:39,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:39 WrapperNode [2021-11-21 00:16:39,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:16:39,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:16:39,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:16:39,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:16:39,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:39" (1/1) ... [2021-11-21 00:16:40,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:39" (1/1) ... [2021-11-21 00:16:40,316 INFO L137 Inliner]: procedures = 556, calls = 2944, calls flagged for inlining = 291, calls inlined = 260, statements flattened = 7429 [2021-11-21 00:16:40,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:16:40,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:16:40,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:16:40,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:16:40,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:39" (1/1) ... [2021-11-21 00:16:40,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:39" (1/1) ... [2021-11-21 00:16:40,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:39" (1/1) ... [2021-11-21 00:16:40,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:39" (1/1) ... [2021-11-21 00:16:40,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:39" (1/1) ... [2021-11-21 00:16:40,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:39" (1/1) ... [2021-11-21 00:16:40,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:39" (1/1) ... [2021-11-21 00:16:40,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:16:40,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:16:40,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:16:40,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:16:40,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:39" (1/1) ... [2021-11-21 00:16:40,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:16:40,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade9b724-e149-47ae-a666-71217e96a0ff/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:16:40,774 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade9b724-e149-47ae-a666-71217e96a0ff/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:16:40,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade9b724-e149-47ae-a666-71217e96a0ff/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:16:40,823 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-11-21 00:16:40,823 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-11-21 00:16:40,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 00:16:40,824 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 00:16:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-21 00:16:40,824 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-21 00:16:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-21 00:16:40,824 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-21 00:16:40,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_86 [2021-11-21 00:16:40,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_86 [2021-11-21 00:16:40,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 00:16:40,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 00:16:40,825 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-21 00:16:40,826 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-21 00:16:40,826 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 00:16:40,826 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 00:16:40,826 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-21 00:16:40,826 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-21 00:16:40,826 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_interrupt [2021-11-21 00:16:40,827 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_interrupt [2021-11-21 00:16:40,827 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-21 00:16:40,827 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-21 00:16:40,827 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 00:16:40,827 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 00:16:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 00:16:40,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 00:16:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 00:16:40,828 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 00:16:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 00:16:40,828 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 00:16:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 00:16:40,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 00:16:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-21 00:16:40,829 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-21 00:16:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:16:40,830 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_bcr [2021-11-21 00:16:40,830 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_bcr [2021-11-21 00:16:40,830 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 00:16:40,830 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 00:16:40,830 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-21 00:16:40,831 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-21 00:16:40,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 00:16:40,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2021-11-21 00:16:40,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2021-11-21 00:16:40,831 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 00:16:40,831 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 00:16:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-21 00:16:40,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-21 00:16:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 00:16:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 00:16:40,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 00:16:40,833 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_tx_ring [2021-11-21 00:16:40,833 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_tx_ring [2021-11-21 00:16:40,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:16:40,833 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 00:16:40,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 00:16:40,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-21 00:16:40,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-21 00:16:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 00:16:40,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 00:16:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_bcr [2021-11-21 00:16:40,834 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_bcr [2021-11-21 00:16:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-21 00:16:40,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-21 00:16:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-21 00:16:40,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-21 00:16:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 00:16:40,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 00:16:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-21 00:16:40,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-21 00:16:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-21 00:16:40,836 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-21 00:16:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 00:16:40,837 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 00:16:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_start [2021-11-21 00:16:40,837 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_start [2021-11-21 00:16:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-21 00:16:40,837 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-21 00:16:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~~u16~0 [2021-11-21 00:16:40,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~~u16~0 [2021-11-21 00:16:40,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:16:40,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-21 00:16:40,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-21 00:16:40,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 00:16:40,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 00:16:40,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-21 00:16:40,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-21 00:16:40,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-21 00:16:40,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-21 00:16:40,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-21 00:16:40,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-21 00:16:40,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-21 00:16:40,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-21 00:16:40,840 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_open [2021-11-21 00:16:40,840 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_open [2021-11-21 00:16:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:16:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-21 00:16:40,841 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-21 00:16:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 00:16:40,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 00:16:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 00:16:40,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 00:16:40,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:16:40,842 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 00:16:40,842 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:16:40,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:16:40,842 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_reset [2021-11-21 00:16:40,843 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_reset [2021-11-21 00:16:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-21 00:16:40,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-21 00:16:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-21 00:16:40,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-21 00:16:40,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_pcnet32_private [2021-11-21 00:16:40,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_pcnet32_private [2021-11-21 00:16:40,844 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-21 00:16:40,844 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-21 00:16:40,844 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_restart [2021-11-21 00:16:40,844 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_restart [2021-11-21 00:16:40,845 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-21 00:16:40,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-21 00:16:40,845 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-21 00:16:40,845 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-21 00:16:40,845 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 00:16:40,846 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 00:16:40,846 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-21 00:16:40,846 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-21 00:16:40,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-21 00:16:40,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-21 00:16:40,846 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_csr [2021-11-21 00:16:40,847 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_csr [2021-11-21 00:16:40,847 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-21 00:16:40,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-21 00:16:40,847 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 00:16:40,847 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 00:16:40,847 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_reset [2021-11-21 00:16:40,848 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_reset [2021-11-21 00:16:40,848 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-21 00:16:40,848 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-21 00:16:40,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:16:40,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:16:40,848 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-21 00:16:40,849 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-21 00:16:40,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 00:16:40,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 00:16:40,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 00:16:40,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 00:16:40,849 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_pm_resume [2021-11-21 00:16:40,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_pm_resume [2021-11-21 00:16:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_check_media [2021-11-21 00:16:40,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_check_media [2021-11-21 00:16:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_get_regs_len [2021-11-21 00:16:40,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_get_regs_len [2021-11-21 00:16:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-21 00:16:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-21 00:16:40,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-21 00:16:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_poll_controller [2021-11-21 00:16:40,851 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_poll_controller [2021-11-21 00:16:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_free_ring [2021-11-21 00:16:40,851 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_free_ring [2021-11-21 00:16:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-21 00:16:40,852 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-21 00:16:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:16:40,852 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:16:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-21 00:16:40,852 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-21 00:16:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-21 00:16:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-21 00:16:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-21 00:16:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-21 00:16:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2021-11-21 00:16:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2021-11-21 00:16:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_rx_ring [2021-11-21 00:16:40,854 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_rx_ring [2021-11-21 00:16:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_csr [2021-11-21 00:16:40,854 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_csr [2021-11-21 00:16:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_tx_timeout [2021-11-21 00:16:40,854 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_tx_timeout [2021-11-21 00:16:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 00:16:40,855 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 00:16:40,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:16:40,855 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_stop [2021-11-21 00:16:40,855 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_stop [2021-11-21 00:16:40,855 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 00:16:40,855 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 00:16:40,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:16:40,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_pcnet32_private [2021-11-21 00:16:40,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_pcnet32_private [2021-11-21 00:16:40,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:16:40,856 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_csr [2021-11-21 00:16:40,856 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_csr [2021-11-21 00:16:40,857 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_set_multicast_list [2021-11-21 00:16:40,857 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_set_multicast_list [2021-11-21 00:16:40,857 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-11-21 00:16:40,857 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-11-21 00:16:40,857 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 00:16:40,857 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 00:16:40,858 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2021-11-21 00:16:40,858 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2021-11-21 00:16:40,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 00:16:40,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 00:16:40,858 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_probe1 [2021-11-21 00:16:40,858 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_probe1 [2021-11-21 00:16:40,859 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-21 00:16:40,859 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-21 00:16:40,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-21 00:16:40,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-21 00:16:40,859 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_remove_one [2021-11-21 00:16:40,859 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_remove_one [2021-11-21 00:16:40,859 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2021-11-21 00:16:40,860 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2021-11-21 00:16:40,860 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2021-11-21 00:16:40,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2021-11-21 00:16:40,860 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_bcr [2021-11-21 00:16:40,860 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_bcr [2021-11-21 00:16:40,860 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-21 00:16:40,861 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-21 00:16:40,861 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-21 00:16:40,861 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-21 00:16:40,861 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 00:16:40,861 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 00:16:40,861 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_bcr [2021-11-21 00:16:40,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_bcr [2021-11-21 00:16:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 00:16:40,862 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 00:16:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_init_ring [2021-11-21 00:16:40,862 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_init_ring [2021-11-21 00:16:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_close [2021-11-21 00:16:40,862 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_close [2021-11-21 00:16:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-21 00:16:40,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-21 00:16:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 00:16:40,863 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 00:16:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:16:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_suspend [2021-11-21 00:16:40,864 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_suspend [2021-11-21 00:16:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 00:16:40,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 00:16:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-21 00:16:40,864 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-21 00:16:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-21 00:16:40,864 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-21 00:16:40,865 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_csr [2021-11-21 00:16:40,865 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_csr [2021-11-21 00:16:40,865 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_load_multicast [2021-11-21 00:16:40,865 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_load_multicast [2021-11-21 00:16:40,865 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-21 00:16:40,865 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-21 00:16:40,866 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_nway_reset [2021-11-21 00:16:40,866 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_nway_reset [2021-11-21 00:16:40,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 00:16:40,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 00:16:40,866 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-21 00:16:40,866 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-21 00:16:40,867 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-21 00:16:40,867 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-21 00:16:40,867 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-21 00:16:40,867 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-21 00:16:40,867 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-21 00:16:40,867 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-21 00:16:40,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:16:40,868 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-21 00:16:40,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-11-21 00:16:40,868 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-11-21 00:16:40,868 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-11-21 00:16:40,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 00:16:40,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 00:16:40,869 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-21 00:16:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-21 00:16:42,046 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:16:42,053 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:16:42,328 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 00:16:50,012 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 00:16:50,187 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:16:52,242 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:16:52,243 INFO L301 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-21 00:16:52,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:16:52 BoogieIcfgContainer [2021-11-21 00:16:52,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:16:52,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:16:52,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:16:52,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:16:52,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:16:34" (1/3) ... [2021-11-21 00:16:52,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53847465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:16:52, skipping insertion in model container [2021-11-21 00:16:52,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:39" (2/3) ... [2021-11-21 00:16:52,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53847465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:16:52, skipping insertion in model container [2021-11-21 00:16:52,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:16:52" (3/3) ... [2021-11-21 00:16:52,259 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-21 00:16:52,273 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:16:52,273 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:16:52,345 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:16:52,362 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 [2021-11-21 00:16:52,366 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:16:52,444 INFO L276 IsEmpty]: Start isEmpty. Operand has 2005 states, 1182 states have (on average 1.3121827411167513) internal successors, (1551), 1222 states have internal predecessors, (1551), 700 states have call successors, (700), 125 states have call predecessors, (700), 124 states have return successors, (692), 679 states have call predecessors, (692), 692 states have call successors, (692) [2021-11-21 00:16:52,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-21 00:16:52,497 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:16:52,498 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:16:52,499 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:16:52,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:16:52,506 INFO L85 PathProgramCache]: Analyzing trace with hash 68276335, now seen corresponding path program 1 times [2021-11-21 00:16:52,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:16:52,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106605965] [2021-11-21 00:16:52,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:16:52,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:16:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:16:53,368 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2021-11-21 00:16:53,369 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:16:53,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106605965] [2021-11-21 00:16:53,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106605965] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:16:53,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:16:53,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:16:53,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121300083] [2021-11-21 00:16:53,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:16:53,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:16:53,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:16:53,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:16:53,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:16:53,457 INFO L87 Difference]: Start difference. First operand has 2005 states, 1182 states have (on average 1.3121827411167513) internal successors, (1551), 1222 states have internal predecessors, (1551), 700 states have call successors, (700), 125 states have call predecessors, (700), 124 states have return successors, (692), 679 states have call predecessors, (692), 692 states have call successors, (692) Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-21 00:16:57,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:57,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:16:57,974 INFO L93 Difference]: Finished difference Result 5464 states and 8069 transitions. [2021-11-21 00:16:57,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:16:57,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 225 [2021-11-21 00:16:57,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:16:58,036 INFO L225 Difference]: With dead ends: 5464 [2021-11-21 00:16:58,036 INFO L226 Difference]: Without dead ends: 3316 [2021-11-21 00:16:58,061 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 [2021-11-21 00:16:58,064 INFO L933 BasicCegarLoop]: 3039 mSDtfsCounter, 2164 mSDsluCounter, 2874 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2165 SdHoareTripleChecker+Valid, 5519 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:16:58,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2165 Valid, 5519 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 867 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2021-11-21 00:16:58,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3316 states. [2021-11-21 00:16:58,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3316 to 3313. [2021-11-21 00:16:58,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3313 states, 1988 states have (on average 1.3138832997987928) internal successors, (2612), 2054 states have internal predecessors, (2612), 1101 states have call successors, (1101), 223 states have call predecessors, (1101), 223 states have return successors, (1102), 1079 states have call predecessors, (1102), 1101 states have call successors, (1102) [2021-11-21 00:16:58,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3313 states to 3313 states and 4815 transitions. [2021-11-21 00:16:58,522 INFO L78 Accepts]: Start accepts. Automaton has 3313 states and 4815 transitions. Word has length 225 [2021-11-21 00:16:58,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:16:58,524 INFO L470 AbstractCegarLoop]: Abstraction has 3313 states and 4815 transitions. [2021-11-21 00:16:58,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-21 00:16:58,527 INFO L276 IsEmpty]: Start isEmpty. Operand 3313 states and 4815 transitions. [2021-11-21 00:16:58,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-21 00:16:58,552 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:16:58,552 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:16:58,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:16:58,553 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:16:58,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:16:58,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1907440970, now seen corresponding path program 1 times [2021-11-21 00:16:58,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:16:58,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536602488] [2021-11-21 00:16:58,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:16:58,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:16:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:16:58,922 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2021-11-21 00:16:58,922 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:16:58,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536602488] [2021-11-21 00:16:58,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536602488] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:16:58,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:16:58,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:16:58,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215404122] [2021-11-21 00:16:58,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:16:58,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:16:58,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:16:58,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:16:58,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:16:58,927 INFO L87 Difference]: Start difference. First operand 3313 states and 4815 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-21 00:17:01,573 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:03,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:03,196 INFO L93 Difference]: Finished difference Result 8470 states and 12244 transitions. [2021-11-21 00:17:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:17:03,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 235 [2021-11-21 00:17:03,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:03,243 INFO L225 Difference]: With dead ends: 8470 [2021-11-21 00:17:03,243 INFO L226 Difference]: Without dead ends: 5184 [2021-11-21 00:17:03,260 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 [2021-11-21 00:17:03,262 INFO L933 BasicCegarLoop]: 2889 mSDtfsCounter, 1856 mSDsluCounter, 2730 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1856 SdHoareTripleChecker+Valid, 5256 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:03,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1856 Valid, 5256 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 861 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-21 00:17:03,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5184 states. [2021-11-21 00:17:03,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5184 to 5181. [2021-11-21 00:17:03,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5181 states, 3108 states have (on average 1.308880308880309) internal successors, (4068), 3204 states have internal predecessors, (4068), 1691 states have call successors, (1691), 382 states have call predecessors, (1691), 381 states have return successors, (1698), 1650 states have call predecessors, (1698), 1691 states have call successors, (1698) [2021-11-21 00:17:03,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5181 states to 5181 states and 7457 transitions. [2021-11-21 00:17:03,586 INFO L78 Accepts]: Start accepts. Automaton has 5181 states and 7457 transitions. Word has length 235 [2021-11-21 00:17:03,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:03,588 INFO L470 AbstractCegarLoop]: Abstraction has 5181 states and 7457 transitions. [2021-11-21 00:17:03,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-21 00:17:03,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5181 states and 7457 transitions. [2021-11-21 00:17:03,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-11-21 00:17:03,604 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:03,604 INFO L514 BasicCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 5, 5, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:03,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:17:03,605 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:17:03,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:03,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1190000898, now seen corresponding path program 1 times [2021-11-21 00:17:03,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:03,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088244364] [2021-11-21 00:17:03,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:03,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:03,998 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 784 trivial. 0 not checked. [2021-11-21 00:17:03,998 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:03,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088244364] [2021-11-21 00:17:03,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088244364] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:03,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:03,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:17:03,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953923483] [2021-11-21 00:17:03,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:04,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:17:04,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:04,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:17:04,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:17:04,005 INFO L87 Difference]: Start difference. First operand 5181 states and 7457 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-21 00:17:06,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:08,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:08,303 INFO L93 Difference]: Finished difference Result 12273 states and 17683 transitions. [2021-11-21 00:17:08,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:17:08,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 274 [2021-11-21 00:17:08,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:08,367 INFO L225 Difference]: With dead ends: 12273 [2021-11-21 00:17:08,367 INFO L226 Difference]: Without dead ends: 7119 [2021-11-21 00:17:08,396 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 [2021-11-21 00:17:08,400 INFO L933 BasicCegarLoop]: 3490 mSDtfsCounter, 1975 mSDsluCounter, 2774 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1976 SdHoareTripleChecker+Valid, 5872 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:08,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1976 Valid, 5872 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1022 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-11-21 00:17:08,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7119 states. [2021-11-21 00:17:08,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7119 to 7115. [2021-11-21 00:17:08,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7115 states, 4286 states have (on average 1.3135790947270183) internal successors, (5630), 4418 states have internal predecessors, (5630), 2297 states have call successors, (2297), 532 states have call predecessors, (2297), 531 states have return successors, (2306), 2241 states have call predecessors, (2306), 2297 states have call successors, (2306) [2021-11-21 00:17:08,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7115 states to 7115 states and 10233 transitions. [2021-11-21 00:17:08,833 INFO L78 Accepts]: Start accepts. Automaton has 7115 states and 10233 transitions. Word has length 274 [2021-11-21 00:17:08,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:08,835 INFO L470 AbstractCegarLoop]: Abstraction has 7115 states and 10233 transitions. [2021-11-21 00:17:08,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-21 00:17:08,836 INFO L276 IsEmpty]: Start isEmpty. Operand 7115 states and 10233 transitions. [2021-11-21 00:17:08,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2021-11-21 00:17:08,854 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:08,854 INFO L514 BasicCegarLoop]: trace histogram [18, 15, 15, 15, 15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:08,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 00:17:08,855 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:17:08,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:08,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1754214073, now seen corresponding path program 1 times [2021-11-21 00:17:08,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:08,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991294328] [2021-11-21 00:17:08,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:08,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:09,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1004 trivial. 0 not checked. [2021-11-21 00:17:09,202 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:09,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991294328] [2021-11-21 00:17:09,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991294328] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:09,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:09,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:17:09,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525037307] [2021-11-21 00:17:09,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:09,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:17:09,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:09,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:17:09,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:17:09,208 INFO L87 Difference]: Start difference. First operand 7115 states and 10233 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-21 00:17:11,854 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:12,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:12,907 INFO L93 Difference]: Finished difference Result 14096 states and 20164 transitions. [2021-11-21 00:17:12,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:17:12,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 355 [2021-11-21 00:17:12,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:12,972 INFO L225 Difference]: With dead ends: 14096 [2021-11-21 00:17:12,972 INFO L226 Difference]: Without dead ends: 7008 [2021-11-21 00:17:13,005 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 [2021-11-21 00:17:13,010 INFO L933 BasicCegarLoop]: 2616 mSDtfsCounter, 2616 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2617 SdHoareTripleChecker+Valid, 3346 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:13,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2617 Valid, 3346 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 528 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2021-11-21 00:17:13,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7008 states. [2021-11-21 00:17:13,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7008 to 7006. [2021-11-21 00:17:13,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7006 states, 4187 states have (on average 1.29997611655123) internal successors, (5443), 4315 states have internal predecessors, (5443), 2258 states have call successors, (2258), 560 states have call predecessors, (2258), 560 states have return successors, (2263), 2203 states have call predecessors, (2263), 2258 states have call successors, (2263) [2021-11-21 00:17:13,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7006 states to 7006 states and 9964 transitions. [2021-11-21 00:17:13,425 INFO L78 Accepts]: Start accepts. Automaton has 7006 states and 9964 transitions. Word has length 355 [2021-11-21 00:17:13,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:13,426 INFO L470 AbstractCegarLoop]: Abstraction has 7006 states and 9964 transitions. [2021-11-21 00:17:13,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-21 00:17:13,426 INFO L276 IsEmpty]: Start isEmpty. Operand 7006 states and 9964 transitions. [2021-11-21 00:17:13,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-11-21 00:17:13,441 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:13,442 INFO L514 BasicCegarLoop]: trace histogram [19, 13, 13, 13, 13, 13, 13, 9, 9, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:13,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:17:13,442 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:17:13,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:13,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1520747626, now seen corresponding path program 1 times [2021-11-21 00:17:13,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:13,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523923868] [2021-11-21 00:17:13,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:13,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:13,746 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 956 trivial. 0 not checked. [2021-11-21 00:17:13,746 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:13,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523923868] [2021-11-21 00:17:13,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523923868] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:13,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:13,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:17:13,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486840949] [2021-11-21 00:17:13,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:13,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:17:13,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:13,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:17:13,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:17:13,750 INFO L87 Difference]: Start difference. First operand 7006 states and 9964 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-21 00:17:16,519 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:17,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:17,789 INFO L93 Difference]: Finished difference Result 14041 states and 20014 transitions. [2021-11-21 00:17:17,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:17:17,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 336 [2021-11-21 00:17:17,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:17,849 INFO L225 Difference]: With dead ends: 14041 [2021-11-21 00:17:17,849 INFO L226 Difference]: Without dead ends: 7062 [2021-11-21 00:17:17,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:17:17,884 INFO L933 BasicCegarLoop]: 2401 mSDtfsCounter, 8 mSDsluCounter, 2794 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4793 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:17,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 4793 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 814 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-21 00:17:17,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7062 states. [2021-11-21 00:17:18,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7062 to 7010. [2021-11-21 00:17:18,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7010 states, 4191 states have (on average 1.299689811500835) internal successors, (5447), 4319 states have internal predecessors, (5447), 2258 states have call successors, (2258), 560 states have call predecessors, (2258), 560 states have return successors, (2263), 2203 states have call predecessors, (2263), 2258 states have call successors, (2263) [2021-11-21 00:17:18,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7010 states to 7010 states and 9968 transitions. [2021-11-21 00:17:18,325 INFO L78 Accepts]: Start accepts. Automaton has 7010 states and 9968 transitions. Word has length 336 [2021-11-21 00:17:18,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:18,326 INFO L470 AbstractCegarLoop]: Abstraction has 7010 states and 9968 transitions. [2021-11-21 00:17:18,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-21 00:17:18,327 INFO L276 IsEmpty]: Start isEmpty. Operand 7010 states and 9968 transitions. [2021-11-21 00:17:18,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2021-11-21 00:17:18,347 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:18,352 INFO L514 BasicCegarLoop]: trace histogram [19, 13, 13, 13, 13, 13, 13, 9, 9, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:18,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 00:17:18,353 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:17:18,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:18,354 INFO L85 PathProgramCache]: Analyzing trace with hash 183295175, now seen corresponding path program 1 times [2021-11-21 00:17:18,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:18,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785951216] [2021-11-21 00:17:18,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:18,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:18,842 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 948 trivial. 0 not checked. [2021-11-21 00:17:18,842 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:18,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785951216] [2021-11-21 00:17:18,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785951216] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:18,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:18,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:17:18,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926505017] [2021-11-21 00:17:18,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:18,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:17:18,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:18,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:17:18,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:17:18,845 INFO L87 Difference]: Start difference. First operand 7010 states and 9968 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-21 00:17:21,800 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:23,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:23,066 INFO L93 Difference]: Finished difference Result 15660 states and 22288 transitions. [2021-11-21 00:17:23,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:17:23,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 354 [2021-11-21 00:17:23,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:23,112 INFO L225 Difference]: With dead ends: 15660 [2021-11-21 00:17:23,112 INFO L226 Difference]: Without dead ends: 8677 [2021-11-21 00:17:23,140 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 [2021-11-21 00:17:23,140 INFO L933 BasicCegarLoop]: 3878 mSDtfsCounter, 1983 mSDsluCounter, 2565 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1984 SdHoareTripleChecker+Valid, 6091 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:23,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1984 Valid, 6091 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1090 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-11-21 00:17:23,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8677 states. [2021-11-21 00:17:23,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8677 to 8673. [2021-11-21 00:17:23,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8673 states, 5201 states have (on average 1.3035954624110748) internal successors, (6780), 5361 states have internal predecessors, (6780), 2773 states have call successors, (2773), 698 states have call predecessors, (2773), 698 states have return successors, (2778), 2705 states have call predecessors, (2778), 2773 states have call successors, (2778) [2021-11-21 00:17:23,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8673 states to 8673 states and 12331 transitions. [2021-11-21 00:17:23,685 INFO L78 Accepts]: Start accepts. Automaton has 8673 states and 12331 transitions. Word has length 354 [2021-11-21 00:17:23,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:23,686 INFO L470 AbstractCegarLoop]: Abstraction has 8673 states and 12331 transitions. [2021-11-21 00:17:23,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-21 00:17:23,686 INFO L276 IsEmpty]: Start isEmpty. Operand 8673 states and 12331 transitions. [2021-11-21 00:17:23,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2021-11-21 00:17:23,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:23,707 INFO L514 BasicCegarLoop]: trace histogram [21, 13, 13, 13, 13, 13, 13, 11, 11, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:23,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 00:17:23,708 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:17:23,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:23,710 INFO L85 PathProgramCache]: Analyzing trace with hash 561940223, now seen corresponding path program 1 times [2021-11-21 00:17:23,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:23,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906789206] [2021-11-21 00:17:23,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:23,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:24,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1110 trivial. 0 not checked. [2021-11-21 00:17:24,138 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:24,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906789206] [2021-11-21 00:17:24,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906789206] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:24,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:24,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:17:24,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413659075] [2021-11-21 00:17:24,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:24,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:17:24,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:24,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:17:24,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:17:24,141 INFO L87 Difference]: Start difference. First operand 8673 states and 12331 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2021-11-21 00:17:27,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:28,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:28,700 INFO L93 Difference]: Finished difference Result 18967 states and 27003 transitions. [2021-11-21 00:17:28,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:17:28,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 397 [2021-11-21 00:17:28,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:28,763 INFO L225 Difference]: With dead ends: 18967 [2021-11-21 00:17:28,763 INFO L226 Difference]: Without dead ends: 10321 [2021-11-21 00:17:28,799 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 [2021-11-21 00:17:28,800 INFO L933 BasicCegarLoop]: 3413 mSDtfsCounter, 1793 mSDsluCounter, 2747 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1793 SdHoareTripleChecker+Valid, 5769 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:28,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1793 Valid, 5769 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1024 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2021-11-21 00:17:28,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10321 states. [2021-11-21 00:17:29,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10321 to 10317. [2021-11-21 00:17:29,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10317 states, 6205 states have (on average 1.3070104754230458) internal successors, (8110), 6397 states have internal predecessors, (8110), 3284 states have call successors, (3284), 827 states have call predecessors, (3284), 827 states have return successors, (3289), 3203 states have call predecessors, (3289), 3284 states have call successors, (3289) [2021-11-21 00:17:29,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10317 states to 10317 states and 14683 transitions. [2021-11-21 00:17:29,501 INFO L78 Accepts]: Start accepts. Automaton has 10317 states and 14683 transitions. Word has length 397 [2021-11-21 00:17:29,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:29,503 INFO L470 AbstractCegarLoop]: Abstraction has 10317 states and 14683 transitions. [2021-11-21 00:17:29,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2021-11-21 00:17:29,504 INFO L276 IsEmpty]: Start isEmpty. Operand 10317 states and 14683 transitions. [2021-11-21 00:17:29,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2021-11-21 00:17:29,531 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:29,532 INFO L514 BasicCegarLoop]: trace histogram [23, 13, 13, 13, 13, 13, 13, 12, 12, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:29,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 00:17:29,532 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:17:29,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:29,534 INFO L85 PathProgramCache]: Analyzing trace with hash -232926983, now seen corresponding path program 1 times [2021-11-21 00:17:29,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:29,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764129174] [2021-11-21 00:17:29,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:29,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:30,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1303 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2021-11-21 00:17:30,221 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:30,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764129174] [2021-11-21 00:17:30,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764129174] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:30,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:30,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:17:30,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350472780] [2021-11-21 00:17:30,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:30,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:17:30,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:30,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:17:30,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:30,225 INFO L87 Difference]: Start difference. First operand 10317 states and 14683 transitions. Second operand has 5 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-21 00:17:33,384 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:34,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:34,877 INFO L93 Difference]: Finished difference Result 20625 states and 29430 transitions. [2021-11-21 00:17:34,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:17:34,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 433 [2021-11-21 00:17:34,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:34,931 INFO L225 Difference]: With dead ends: 20625 [2021-11-21 00:17:34,931 INFO L226 Difference]: Without dead ends: 10335 [2021-11-21 00:17:34,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:17:34,967 INFO L933 BasicCegarLoop]: 2395 mSDtfsCounter, 6 mSDsluCounter, 8392 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 9576 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:34,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 9576 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1627 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2021-11-21 00:17:34,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10335 states. [2021-11-21 00:17:35,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10335 to 10335. [2021-11-21 00:17:35,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10335 states, 6219 states have (on average 1.3059977488342178) internal successors, (8122), 6411 states have internal predecessors, (8122), 3283 states have call successors, (3283), 832 states have call predecessors, (3283), 832 states have return successors, (3288), 3202 states have call predecessors, (3288), 3283 states have call successors, (3288) [2021-11-21 00:17:35,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10335 states to 10335 states and 14693 transitions. [2021-11-21 00:17:35,656 INFO L78 Accepts]: Start accepts. Automaton has 10335 states and 14693 transitions. Word has length 433 [2021-11-21 00:17:35,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:35,657 INFO L470 AbstractCegarLoop]: Abstraction has 10335 states and 14693 transitions. [2021-11-21 00:17:35,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-21 00:17:35,658 INFO L276 IsEmpty]: Start isEmpty. Operand 10335 states and 14693 transitions. [2021-11-21 00:17:35,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2021-11-21 00:17:35,683 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:35,684 INFO L514 BasicCegarLoop]: trace histogram [22, 15, 15, 15, 15, 15, 15, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:35,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 00:17:35,684 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:17:35,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:35,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1215264771, now seen corresponding path program 1 times [2021-11-21 00:17:35,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:35,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601882416] [2021-11-21 00:17:35,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:35,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:36,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1292 trivial. 0 not checked. [2021-11-21 00:17:36,040 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:36,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601882416] [2021-11-21 00:17:36,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601882416] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:36,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:36,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:17:36,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069196059] [2021-11-21 00:17:36,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:36,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:17:36,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:36,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:17:36,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:17:36,043 INFO L87 Difference]: Start difference. First operand 10335 states and 14693 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-21 00:17:38,870 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:40,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:40,179 INFO L93 Difference]: Finished difference Result 20663 states and 29383 transitions. [2021-11-21 00:17:40,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:17:40,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 450 [2021-11-21 00:17:40,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:40,240 INFO L225 Difference]: With dead ends: 20663 [2021-11-21 00:17:40,240 INFO L226 Difference]: Without dead ends: 10355 [2021-11-21 00:17:40,280 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 [2021-11-21 00:17:40,281 INFO L933 BasicCegarLoop]: 2397 mSDtfsCounter, 7 mSDsluCounter, 2781 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4783 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:40,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 4783 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 821 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-21 00:17:40,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10355 states. [2021-11-21 00:17:41,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10355 to 10341. [2021-11-21 00:17:41,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10341 states, 6225 states have (on average 1.30570281124498) internal successors, (8128), 6417 states have internal predecessors, (8128), 3283 states have call successors, (3283), 832 states have call predecessors, (3283), 832 states have return successors, (3288), 3202 states have call predecessors, (3288), 3283 states have call successors, (3288) [2021-11-21 00:17:41,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10341 states to 10341 states and 14699 transitions. [2021-11-21 00:17:41,113 INFO L78 Accepts]: Start accepts. Automaton has 10341 states and 14699 transitions. Word has length 450 [2021-11-21 00:17:41,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:41,114 INFO L470 AbstractCegarLoop]: Abstraction has 10341 states and 14699 transitions. [2021-11-21 00:17:41,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-21 00:17:41,115 INFO L276 IsEmpty]: Start isEmpty. Operand 10341 states and 14699 transitions. [2021-11-21 00:17:41,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2021-11-21 00:17:41,138 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:41,138 INFO L514 BasicCegarLoop]: trace histogram [22, 15, 15, 15, 15, 15, 15, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:41,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 00:17:41,139 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:17:41,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:41,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1211240016, now seen corresponding path program 1 times [2021-11-21 00:17:41,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:41,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545490638] [2021-11-21 00:17:41,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:41,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:42,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1316 trivial. 0 not checked. [2021-11-21 00:17:42,139 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:42,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545490638] [2021-11-21 00:17:42,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545490638] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:17:42,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903889120] [2021-11-21 00:17:42,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:42,140 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:17:42,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade9b724-e149-47ae-a666-71217e96a0ff/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:17:42,142 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade9b724-e149-47ae-a666-71217e96a0ff/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:17:42,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade9b724-e149-47ae-a666-71217e96a0ff/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:17:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:43,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 4948 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:17:43,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:44,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2021-11-21 00:17:44,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:45,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2021-11-21 00:17:45,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903889120] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:17:45,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [461008632] [2021-11-21 00:17:45,843 INFO L159 IcfgInterpreter]: Started Sifa with 230 locations of interest [2021-11-21 00:17:45,843 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:17:45,849 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:17:45,855 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:17:45,855 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs