./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61edfbe-7301-49f1-9103-247c9da18ae5/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61edfbe-7301-49f1-9103-247c9da18ae5/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61edfbe-7301-49f1-9103-247c9da18ae5/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61edfbe-7301-49f1-9103-247c9da18ae5/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61edfbe-7301-49f1-9103-247c9da18ae5/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61edfbe-7301-49f1-9103-247c9da18ae5/bin/utaipan-Q6hlc19bkW --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 45acb2c796116b4df93c0e090b1e242e2e986b4d7b1240180279cd2f8660db26 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:26:35,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:26:35,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:26:35,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:26:35,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:26:35,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:26:35,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:26:35,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:26:35,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:26:35,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:26:35,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:26:35,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:26:35,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:26:35,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:26:35,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:26:35,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:26:35,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:26:35,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:26:35,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:26:35,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:26:35,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:26:35,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:26:35,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:26:35,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:26:35,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:26:35,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:26:35,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:26:35,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:26:35,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:26:35,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:26:35,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:26:35,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:26:35,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:26:35,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:26:35,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:26:35,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:26:35,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:26:35,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:26:35,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:26:35,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:26:35,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:26:35,628 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61edfbe-7301-49f1-9103-247c9da18ae5/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:26:35,668 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:26:35,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:26:35,669 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:26:35,669 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:26:35,670 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:26:35,670 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:26:35,670 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:26:35,675 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:26:35,675 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:26:35,675 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:26:35,676 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:26:35,677 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:26:35,677 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:26:35,677 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:26:35,677 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:26:35,677 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:26:35,678 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:26:35,678 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:26:35,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:26:35,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:26:35,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:26:35,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:26:35,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:26:35,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:26:35,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:26:35,680 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:26:35,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:26:35,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:26:35,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:26:35,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:26:35,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:26:35,682 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:26:35,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:26:35,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:26:35,682 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:26:35,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:26:35,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:26:35,683 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:26:35,683 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61edfbe-7301-49f1-9103-247c9da18ae5/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61edfbe-7301-49f1-9103-247c9da18ae5/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45acb2c796116b4df93c0e090b1e242e2e986b4d7b1240180279cd2f8660db26 [2022-11-23 15:26:35,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:26:36,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:26:36,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:26:36,013 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:26:36,014 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:26:36,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61edfbe-7301-49f1-9103-247c9da18ae5/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-11-23 15:26:39,218 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:26:39,991 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:26:39,992 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61edfbe-7301-49f1-9103-247c9da18ae5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-11-23 15:26:40,055 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61edfbe-7301-49f1-9103-247c9da18ae5/bin/utaipan-Q6hlc19bkW/data/7771bcc65/02a26c69197e471c8e406bd77fb0ad0d/FLAG71dc2aa06 [2022-11-23 15:26:40,074 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61edfbe-7301-49f1-9103-247c9da18ae5/bin/utaipan-Q6hlc19bkW/data/7771bcc65/02a26c69197e471c8e406bd77fb0ad0d [2022-11-23 15:26:40,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:26:40,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:26:40,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:26:40,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:26:40,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:26:40,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:26:40" (1/1) ... [2022-11-23 15:26:40,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a3791b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:40, skipping insertion in model container [2022-11-23 15:26:40,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:26:40" (1/1) ... [2022-11-23 15:26:40,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:26:40,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:26:44,871 WARN L237 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_f61edfbe-7301-49f1-9103-247c9da18ae5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480731,480744] [2022-11-23 15:26:44,876 WARN L237 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_f61edfbe-7301-49f1-9103-247c9da18ae5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480876,480889] [2022-11-23 15:26:44,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:26:44,968 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:26:45,581 WARN L237 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_f61edfbe-7301-49f1-9103-247c9da18ae5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480731,480744] [2022-11-23 15:26:45,582 WARN L237 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_f61edfbe-7301-49f1-9103-247c9da18ae5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480876,480889] [2022-11-23 15:26:45,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:26:45,784 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:26:45,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45 WrapperNode [2022-11-23 15:26:45,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:26:45,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:26:45,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:26:45,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:26:45,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:45,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:46,229 INFO L138 Inliner]: procedures = 543, calls = 4303, calls flagged for inlining = 248, calls inlined = 232, statements flattened = 8860 [2022-11-23 15:26:46,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:26:46,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:26:46,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:26:46,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:26:46,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:46,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:46,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:46,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:46,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:46,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:46,928 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:46,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:47,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:26:47,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:26:47,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:26:47,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:26:47,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (1/1) ... [2022-11-23 15:26:47,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:26:47,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61edfbe-7301-49f1-9103-247c9da18ae5/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:26:47,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61edfbe-7301-49f1-9103-247c9da18ae5/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:26:47,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61edfbe-7301-49f1-9103-247c9da18ae5/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:26:47,104 INFO L130 BoogieDeclarations]: Found specification of procedure disable_ast [2022-11-23 15:26:47,104 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_ast [2022-11-23 15:26:47,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_92 [2022-11-23 15:26:47,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_92 [2022-11-23 15:26:47,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 15:26:47,105 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 15:26:47,105 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-23 15:26:47,105 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-23 15:26:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:26:47,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:26:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2022-11-23 15:26:47,106 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2022-11-23 15:26:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_put_cache [2022-11-23 15:26:47,106 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_put_cache [2022-11-23 15:26:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-23 15:26:47,106 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-23 15:26:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_de4x5_private [2022-11-23 15:26:47,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_de4x5_private [2022-11-23 15:26:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-11-23 15:26:47,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-11-23 15:26:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_mii [2022-11-23 15:26:47,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_mii [2022-11-23 15:26:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_switch_mac_port [2022-11-23 15:26:47,107 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_switch_mac_port [2022-11-23 15:26:47,108 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 15:26:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 15:26:47,108 INFO L130 BoogieDeclarations]: Found specification of procedure srom_latch [2022-11-23 15:26:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_latch [2022-11-23 15:26:47,108 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 15:26:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 15:26:47,108 INFO L130 BoogieDeclarations]: Found specification of procedure build_setup_frame [2022-11-23 15:26:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure build_setup_frame [2022-11-23 15:26:47,108 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2022-11-23 15:26:47,109 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2022-11-23 15:26:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2022-11-23 15:26:47,109 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2022-11-23 15:26:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-23 15:26:47,109 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-23 15:26:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure DevicePresent [2022-11-23 15:26:47,109 INFO L138 BoogieDeclarations]: Found implementation of procedure DevicePresent [2022-11-23 15:26:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-23 15:26:47,109 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-23 15:26:47,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 15:26:47,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 15:26:47,110 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2022-11-23 15:26:47,110 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2022-11-23 15:26:47,110 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-11-23 15:26:47,110 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-11-23 15:26:47,110 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-23 15:26:47,110 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-23 15:26:47,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 15:26:47,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 15:26:47,111 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-11-23 15:26:47,111 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_sw_reset [2022-11-23 15:26:47,111 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_sw_reset [2022-11-23 15:26:47,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:26:47,111 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-11-23 15:26:47,111 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-11-23 15:26:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-23 15:26:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-23 15:26:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-23 15:26:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-23 15:26:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure is_spd_100 [2022-11-23 15:26:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure is_spd_100 [2022-11-23 15:26:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 15:26:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 15:26:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 15:26:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-23 15:26:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-23 15:26:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_mii [2022-11-23 15:26:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_mii [2022-11-23 15:26:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_rx_buffs [2022-11-23 15:26:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_rx_buffs [2022-11-23 15:26:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 15:26:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 15:26:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-23 15:26:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-23 15:26:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-23 15:26:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-23 15:26:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:26:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 15:26:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 15:26:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:26:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-23 15:26:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-23 15:26:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 15:26:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 15:26:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-23 15:26:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-23 15:26:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-23 15:26:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-23 15:26:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure ping_media [2022-11-23 15:26:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ping_media [2022-11-23 15:26:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 15:26:47,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 15:26:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 15:26:47,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 15:26:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2022-11-23 15:26:47,116 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2022-11-23 15:26:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 15:26:47,117 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 15:26:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-23 15:26:47,117 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-23 15:26:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_tx [2022-11-23 15:26:47,117 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_tx [2022-11-23 15:26:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-23 15:26:47,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-23 15:26:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure srom_rd [2022-11-23 15:26:47,119 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_rd [2022-11-23 15:26:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:26:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-23 15:26:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-23 15:26:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-23 15:26:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-23 15:26:47,125 INFO L130 BoogieDeclarations]: Found specification of procedure SetMulticastFilter [2022-11-23 15:26:47,125 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMulticastFilter [2022-11-23 15:26:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:26:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ioctl [2022-11-23 15:26:47,183 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ioctl [2022-11-23 15:26:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 15:26:47,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 15:26:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 15:26:47,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 15:26:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:26:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 15:26:47,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 15:26:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_srom [2022-11-23 15:26:47,184 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_srom [2022-11-23 15:26:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-23 15:26:47,184 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-23 15:26:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:26:47,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:26:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-23 15:26:47,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-23 15:26:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-23 15:26:47,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-23 15:26:47,185 INFO L130 BoogieDeclarations]: Found specification of procedure mii_swap [2022-11-23 15:26:47,185 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_swap [2022-11-23 15:26:47,185 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_reset_phy [2022-11-23 15:26:47,185 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_reset_phy [2022-11-23 15:26:47,185 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_putb_cache [2022-11-23 15:26:47,185 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_putb_cache [2022-11-23 15:26:47,185 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-23 15:26:47,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-23 15:26:47,185 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2022-11-23 15:26:47,185 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2022-11-23 15:26:47,185 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 15:26:47,186 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 15:26:47,186 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_stats [2022-11-23 15:26:47,186 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_stats [2022-11-23 15:26:47,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-23 15:26:47,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-23 15:26:47,186 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-23 15:26:47,186 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-23 15:26:47,186 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init_connection [2022-11-23 15:26:47,186 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init_connection [2022-11-23 15:26:47,186 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wr [2022-11-23 15:26:47,187 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wr [2022-11-23 15:26:47,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:26:47,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:26:47,187 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_state [2022-11-23 15:26:47,187 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_state [2022-11-23 15:26:47,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-23 15:26:47,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-23 15:26:47,187 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2022-11-23 15:26:47,187 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2022-11-23 15:26:47,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 15:26:47,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 15:26:47,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:26:47,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:26:47,188 INFO L130 BoogieDeclarations]: Found specification of procedure reset_init_sia [2022-11-23 15:26:47,188 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_init_sia [2022-11-23 15:26:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-23 15:26:47,227 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-23 15:26:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_alloc_rx_buff [2022-11-23 15:26:47,227 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_alloc_rx_buff [2022-11-23 15:26:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure test_for_100Mb [2022-11-23 15:26:47,227 INFO L138 BoogieDeclarations]: Found implementation of procedure test_for_100Mb [2022-11-23 15:26:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-23 15:26:47,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-23 15:26:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2022-11-23 15:26:47,227 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2022-11-23 15:26:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure load_packet [2022-11-23 15:26:47,228 INFO L138 BoogieDeclarations]: Found implementation of procedure load_packet [2022-11-23 15:26:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2022-11-23 15:26:47,228 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2022-11-23 15:26:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure is_100_up [2022-11-23 15:26:47,228 INFO L138 BoogieDeclarations]: Found implementation of procedure is_100_up [2022-11-23 15:26:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2022-11-23 15:26:47,228 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2022-11-23 15:26:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:26:47,228 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:26:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ta [2022-11-23 15:26:47,228 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ta [2022-11-23 15:26:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-23 15:26:47,229 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-23 15:26:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2022-11-23 15:26:47,229 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2022-11-23 15:26:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-23 15:26:47,229 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-23 15:26:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure test_mii_reg [2022-11-23 15:26:47,229 INFO L138 BoogieDeclarations]: Found implementation of procedure test_mii_reg [2022-11-23 15:26:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_cache_state [2022-11-23 15:26:47,229 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_cache_state [2022-11-23 15:26:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-23 15:26:47,229 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-23 15:26:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_pci_remove [2022-11-23 15:26:47,230 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_pci_remove [2022-11-23 15:26:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:26:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_media [2022-11-23 15:26:47,230 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_media [2022-11-23 15:26:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2022-11-23 15:26:47,230 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2022-11-23 15:26:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2022-11-23 15:26:47,230 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2022-11-23 15:26:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rd [2022-11-23 15:26:47,230 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rd [2022-11-23 15:26:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:26:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2022-11-23 15:26:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2022-11-23 15:26:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-23 15:26:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-23 15:26:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2022-11-23 15:26:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2022-11-23 15:26:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:26:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-23 15:26:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-23 15:26:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure is_10_up [2022-11-23 15:26:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10_up [2022-11-23 15:26:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-23 15:26:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-23 15:26:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-23 15:26:47,232 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-23 15:26:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure is_anc_capable [2022-11-23 15:26:47,232 INFO L138 BoogieDeclarations]: Found implementation of procedure is_anc_capable [2022-11-23 15:26:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2022-11-23 15:26:47,232 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2022-11-23 15:26:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 15:26:47,232 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 15:26:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-23 15:26:47,232 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-23 15:26:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-23 15:26:47,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-23 15:26:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2022-11-23 15:26:47,233 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2022-11-23 15:26:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 15:26:47,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 15:26:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-23 15:26:47,233 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-23 15:26:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_queue_pkt [2022-11-23 15:26:47,233 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_queue_pkt [2022-11-23 15:26:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure test_media [2022-11-23 15:26:47,233 INFO L138 BoogieDeclarations]: Found implementation of procedure test_media [2022-11-23 15:26:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buffs [2022-11-23 15:26:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buffs [2022-11-23 15:26:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-11-23 15:26:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-11-23 15:26:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-23 15:26:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-23 15:26:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-23 15:26:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-23 15:26:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-23 15:26:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-23 15:26:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2022-11-23 15:26:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2022-11-23 15:26:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-23 15:26:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-23 15:26:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_infoleaf [2022-11-23 15:26:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_infoleaf [2022-11-23 15:26:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:26:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure srom_exec [2022-11-23 15:26:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_exec [2022-11-23 15:26:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:26:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:26:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure gep_wr [2022-11-23 15:26:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_wr [2022-11-23 15:26:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-23 15:26:47,236 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-23 15:26:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_srom [2022-11-23 15:26:47,236 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_srom [2022-11-23 15:26:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-23 15:26:47,236 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-23 15:26:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2022-11-23 15:26:47,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2022-11-23 15:26:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_cache [2022-11-23 15:26:47,236 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_cache [2022-11-23 15:26:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2022-11-23 15:26:47,237 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2022-11-23 15:26:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_mii [2022-11-23 15:26:47,237 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_mii [2022-11-23 15:26:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2022-11-23 15:26:47,237 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2022-11-23 15:26:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 15:26:47,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 15:26:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure gep_rd [2022-11-23 15:26:47,237 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_rd [2022-11-23 15:26:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure mii_address [2022-11-23 15:26:47,237 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_address [2022-11-23 15:26:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buff [2022-11-23 15:26:47,238 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buff [2022-11-23 15:26:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_setup_intr [2022-11-23 15:26:47,238 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_setup_intr [2022-11-23 15:26:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_save_skbs [2022-11-23 15:26:47,238 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_save_skbs [2022-11-23 15:26:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2022-11-23 15:26:47,238 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2022-11-23 15:26:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-23 15:26:47,238 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-23 15:26:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure srom_map_media [2022-11-23 15:26:47,238 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_map_media [2022-11-23 15:26:47,243 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_strncmp [2022-11-23 15:26:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_strncmp [2022-11-23 15:26:47,243 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-23 15:26:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-23 15:26:47,243 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_close [2022-11-23 15:26:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_close [2022-11-23 15:26:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure yawn [2022-11-23 15:26:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure yawn [2022-11-23 15:26:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wdata [2022-11-23 15:26:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wdata [2022-11-23 15:26:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:26:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 15:26:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 15:26:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-23 15:26:48,574 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:26:48,578 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:26:49,064 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:27:10,958 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-23 15:27:11,333 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:27:15,360 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:27:15,361 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-11-23 15:27:15,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:27:15 BoogieIcfgContainer [2022-11-23 15:27:15,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:27:15,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:27:15,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:27:15,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:27:15,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:26:40" (1/3) ... [2022-11-23 15:27:15,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4888c8a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:27:15, skipping insertion in model container [2022-11-23 15:27:15,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:45" (2/3) ... [2022-11-23 15:27:15,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4888c8a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:27:15, skipping insertion in model container [2022-11-23 15:27:15,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:27:15" (3/3) ... [2022-11-23 15:27:15,374 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-11-23 15:27:15,395 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:27:15,395 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:27:15,538 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:27:15,550 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6779c0e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:27:15,551 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:27:15,570 INFO L276 IsEmpty]: Start isEmpty. Operand has 3043 states, 1909 states have (on average 1.3473022524882137) internal successors, (2572), 1969 states have internal predecessors, (2572), 997 states have call successors, (997), 153 states have call predecessors, (997), 152 states have return successors, (990), 976 states have call predecessors, (990), 990 states have call successors, (990) [2022-11-23 15:27:15,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-23 15:27:15,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:27:15,638 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 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] [2022-11-23 15:27:15,639 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:27:15,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:27:15,646 INFO L85 PathProgramCache]: Analyzing trace with hash -586858591, now seen corresponding path program 1 times [2022-11-23 15:27:15,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:27:15,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364567775] [2022-11-23 15:27:15,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:27:15,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:27:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:27:17,028 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2022-11-23 15:27:17,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:27:17,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364567775] [2022-11-23 15:27:17,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364567775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:27:17,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:27:17,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:27:17,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617223382] [2022-11-23 15:27:17,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:27:17,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:27:17,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:27:17,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:27:17,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:27:17,107 INFO L87 Difference]: Start difference. First operand has 3043 states, 1909 states have (on average 1.3473022524882137) internal successors, (2572), 1969 states have internal predecessors, (2572), 997 states have call successors, (997), 153 states have call predecessors, (997), 152 states have return successors, (990), 976 states have call predecessors, (990), 990 states have call successors, (990) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-23 15:27:19,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:27:23,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:27:25,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:27:25,862 INFO L93 Difference]: Finished difference Result 8398 states and 12822 transitions. [2022-11-23 15:27:25,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:27:25,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 199 [2022-11-23 15:27:25,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:27:25,952 INFO L225 Difference]: With dead ends: 8398 [2022-11-23 15:27:25,952 INFO L226 Difference]: Without dead ends: 5331 [2022-11-23 15:27:25,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:27:26,003 INFO L413 NwaCegarLoop]: 4738 mSDtfsCounter, 3541 mSDsluCounter, 3887 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3541 SdHoareTripleChecker+Valid, 8625 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:27:26,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3541 Valid, 8625 Invalid, 1137 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1119 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-11-23 15:27:26,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5331 states. [2022-11-23 15:27:26,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5331 to 5328. [2022-11-23 15:27:26,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 3330 states have (on average 1.3396396396396397) internal successors, (4461), 3409 states have internal predecessors, (4461), 1720 states have call successors, (1720), 277 states have call predecessors, (1720), 277 states have return successors, (1720), 1694 states have call predecessors, (1720), 1720 states have call successors, (1720) [2022-11-23 15:27:26,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 7901 transitions. [2022-11-23 15:27:26,550 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 7901 transitions. Word has length 199 [2022-11-23 15:27:26,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:27:26,556 INFO L495 AbstractCegarLoop]: Abstraction has 5328 states and 7901 transitions. [2022-11-23 15:27:26,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-23 15:27:26,556 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 7901 transitions. [2022-11-23 15:27:26,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-11-23 15:27:26,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:27:26,588 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:27:26,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:27:26,591 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:27:26,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:27:26,592 INFO L85 PathProgramCache]: Analyzing trace with hash -867919566, now seen corresponding path program 1 times [2022-11-23 15:27:26,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:27:26,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737429149] [2022-11-23 15:27:26,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:27:26,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:27:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:27:27,195 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2022-11-23 15:27:27,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:27:27,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737429149] [2022-11-23 15:27:27,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737429149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:27:27,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:27:27,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:27:27,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550188094] [2022-11-23 15:27:27,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:27:27,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:27:27,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:27:27,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:27:27,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:27:27,201 INFO L87 Difference]: Start difference. First operand 5328 states and 7901 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-23 15:27:29,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:27:34,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:27:34,887 INFO L93 Difference]: Finished difference Result 15652 states and 23509 transitions. [2022-11-23 15:27:34,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:27:34,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 227 [2022-11-23 15:27:34,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:27:34,999 INFO L225 Difference]: With dead ends: 15652 [2022-11-23 15:27:34,999 INFO L226 Difference]: Without dead ends: 10355 [2022-11-23 15:27:35,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:27:35,051 INFO L413 NwaCegarLoop]: 4877 mSDtfsCounter, 4242 mSDsluCounter, 3912 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4242 SdHoareTripleChecker+Valid, 8789 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:27:35,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4242 Valid, 8789 Invalid, 1070 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 1063 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-11-23 15:27:35,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10355 states. [2022-11-23 15:27:35,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10355 to 10349. [2022-11-23 15:27:35,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10349 states, 6464 states have (on average 1.3405012376237624) internal successors, (8665), 6627 states have internal predecessors, (8665), 3335 states have call successors, (3335), 552 states have call predecessors, (3335), 549 states have return successors, (3643), 3275 states have call predecessors, (3643), 3335 states have call successors, (3643) [2022-11-23 15:27:35,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10349 states to 10349 states and 15643 transitions. [2022-11-23 15:27:35,796 INFO L78 Accepts]: Start accepts. Automaton has 10349 states and 15643 transitions. Word has length 227 [2022-11-23 15:27:35,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:27:35,797 INFO L495 AbstractCegarLoop]: Abstraction has 10349 states and 15643 transitions. [2022-11-23 15:27:35,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-23 15:27:35,799 INFO L276 IsEmpty]: Start isEmpty. Operand 10349 states and 15643 transitions. [2022-11-23 15:27:35,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-11-23 15:27:35,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:27:35,821 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:27:35,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:27:35,821 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:27:35,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:27:35,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1400916840, now seen corresponding path program 1 times [2022-11-23 15:27:35,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:27:35,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484351636] [2022-11-23 15:27:35,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:27:35,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:27:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:27:36,569 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2022-11-23 15:27:36,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:27:36,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484351636] [2022-11-23 15:27:36,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484351636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:27:36,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:27:36,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:27:36,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729066033] [2022-11-23 15:27:36,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:27:36,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:27:36,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:27:36,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:27:36,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:27:36,572 INFO L87 Difference]: Start difference. First operand 10349 states and 15643 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-23 15:27:38,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:27:44,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:27:44,602 INFO L93 Difference]: Finished difference Result 30877 states and 46663 transitions. [2022-11-23 15:27:44,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:27:44,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 231 [2022-11-23 15:27:44,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:27:44,779 INFO L225 Difference]: With dead ends: 30877 [2022-11-23 15:27:44,780 INFO L226 Difference]: Without dead ends: 20559 [2022-11-23 15:27:44,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:27:44,888 INFO L413 NwaCegarLoop]: 4805 mSDtfsCounter, 4297 mSDsluCounter, 3848 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4297 SdHoareTripleChecker+Valid, 8653 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:27:44,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4297 Valid, 8653 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1086 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-11-23 15:27:44,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20559 states. [2022-11-23 15:27:46,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20559 to 20557. [2022-11-23 15:27:46,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20557 states, 12843 states have (on average 1.3390173635443432) internal successors, (17197), 13169 states have internal predecessors, (17197), 6615 states have call successors, (6615), 1104 states have call predecessors, (6615), 1098 states have return successors, (7233), 6495 states have call predecessors, (7233), 6615 states have call successors, (7233) [2022-11-23 15:27:46,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20557 states to 20557 states and 31045 transitions. [2022-11-23 15:27:46,799 INFO L78 Accepts]: Start accepts. Automaton has 20557 states and 31045 transitions. Word has length 231 [2022-11-23 15:27:46,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:27:46,800 INFO L495 AbstractCegarLoop]: Abstraction has 20557 states and 31045 transitions. [2022-11-23 15:27:46,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-23 15:27:46,800 INFO L276 IsEmpty]: Start isEmpty. Operand 20557 states and 31045 transitions. [2022-11-23 15:27:46,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-23 15:27:46,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:27:46,829 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:27:46,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:27:46,829 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:27:46,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:27:46,830 INFO L85 PathProgramCache]: Analyzing trace with hash -84537447, now seen corresponding path program 1 times [2022-11-23 15:27:46,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:27:46,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413207089] [2022-11-23 15:27:46,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:27:46,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:27:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:27:47,398 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2022-11-23 15:27:47,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:27:47,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413207089] [2022-11-23 15:27:47,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413207089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:27:47,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:27:47,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:27:47,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166123721] [2022-11-23 15:27:47,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:27:47,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:27:47,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:27:47,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:27:47,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:27:47,405 INFO L87 Difference]: Start difference. First operand 20557 states and 31045 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-23 15:27:49,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:27:55,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:27:55,683 INFO L93 Difference]: Finished difference Result 61393 states and 92695 transitions. [2022-11-23 15:27:55,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:27:55,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 232 [2022-11-23 15:27:55,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:27:55,985 INFO L225 Difference]: With dead ends: 61393 [2022-11-23 15:27:55,985 INFO L226 Difference]: Without dead ends: 40867 [2022-11-23 15:27:56,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:27:56,146 INFO L413 NwaCegarLoop]: 4805 mSDtfsCounter, 4296 mSDsluCounter, 3848 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4296 SdHoareTripleChecker+Valid, 8653 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:27:56,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4296 Valid, 8653 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1086 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-11-23 15:27:56,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40867 states. [2022-11-23 15:27:58,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40867 to 40865. [2022-11-23 15:27:58,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40865 states, 25533 states have (on average 1.337288998550895) internal successors, (34145), 26185 states have internal predecessors, (34145), 13135 states have call successors, (13135), 2208 states have call predecessors, (13135), 2196 states have return successors, (14375), 12895 states have call predecessors, (14375), 13135 states have call successors, (14375) [2022-11-23 15:27:59,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40865 states to 40865 states and 61655 transitions. [2022-11-23 15:27:59,311 INFO L78 Accepts]: Start accepts. Automaton has 40865 states and 61655 transitions. Word has length 232 [2022-11-23 15:27:59,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:27:59,312 INFO L495 AbstractCegarLoop]: Abstraction has 40865 states and 61655 transitions. [2022-11-23 15:27:59,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-23 15:27:59,313 INFO L276 IsEmpty]: Start isEmpty. Operand 40865 states and 61655 transitions. [2022-11-23 15:27:59,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-23 15:27:59,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:27:59,333 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:27:59,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:27:59,334 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:27:59,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:27:59,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1966300921, now seen corresponding path program 1 times [2022-11-23 15:27:59,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:27:59,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359901104] [2022-11-23 15:27:59,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:27:59,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:27:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:28:00,032 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2022-11-23 15:28:00,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:28:00,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359901104] [2022-11-23 15:28:00,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359901104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:28:00,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:28:00,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:28:00,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417706977] [2022-11-23 15:28:00,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:28:00,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:28:00,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:28:00,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:28:00,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:28:00,035 INFO L87 Difference]: Start difference. First operand 40865 states and 61655 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-23 15:28:02,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:28:24,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:28:24,325 INFO L93 Difference]: Finished difference Result 156087 states and 235158 transitions. [2022-11-23 15:28:24,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:28:24,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 233 [2022-11-23 15:28:24,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:28:25,460 INFO L225 Difference]: With dead ends: 156087 [2022-11-23 15:28:25,460 INFO L226 Difference]: Without dead ends: 115253 [2022-11-23 15:28:25,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:28:25,796 INFO L413 NwaCegarLoop]: 5545 mSDtfsCounter, 10719 mSDsluCounter, 7674 mSDsCounter, 0 mSdLazyCounter, 6861 mSolverCounterSat, 2078 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10899 SdHoareTripleChecker+Valid, 13219 SdHoareTripleChecker+Invalid, 8940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2078 IncrementalHoareTripleChecker+Valid, 6861 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:28:25,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10899 Valid, 13219 Invalid, 8940 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2078 Valid, 6861 Invalid, 1 Unknown, 0 Unchecked, 19.2s Time] [2022-11-23 15:28:25,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115253 states. [2022-11-23 15:28:31,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115253 to 115161. [2022-11-23 15:28:31,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115161 states, 71961 states have (on average 1.3356818276566473) internal successors, (96117), 73821 states have internal predecessors, (96117), 36887 states have call successors, (36887), 6346 states have call predecessors, (36887), 6312 states have return successors, (40343), 36205 states have call predecessors, (40343), 36887 states have call successors, (40343) [2022-11-23 15:28:33,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115161 states to 115161 states and 173347 transitions. [2022-11-23 15:28:33,529 INFO L78 Accepts]: Start accepts. Automaton has 115161 states and 173347 transitions. Word has length 233 [2022-11-23 15:28:33,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:28:33,530 INFO L495 AbstractCegarLoop]: Abstraction has 115161 states and 173347 transitions. [2022-11-23 15:28:33,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-23 15:28:33,530 INFO L276 IsEmpty]: Start isEmpty. Operand 115161 states and 173347 transitions. [2022-11-23 15:28:33,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-11-23 15:28:33,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:28:33,546 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:28:33,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:28:33,547 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:28:33,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:28:33,547 INFO L85 PathProgramCache]: Analyzing trace with hash -571325793, now seen corresponding path program 1 times [2022-11-23 15:28:33,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:28:33,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745882492] [2022-11-23 15:28:33,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:28:33,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:28:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:28:34,337 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-11-23 15:28:34,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:28:34,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745882492] [2022-11-23 15:28:34,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745882492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:28:34,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:28:34,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:28:34,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549781518] [2022-11-23 15:28:34,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:28:34,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:28:34,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:28:34,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:28:34,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:28:34,340 INFO L87 Difference]: Start difference. First operand 115161 states and 173347 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-23 15:28:36,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []