./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5b31204b1d3e0e886bec362e36aa7180804ba0e69acfc232c20abd4ca078cb80 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:01:11,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:01:11,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:01:11,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:01:11,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:01:11,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:01:11,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:01:11,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:01:11,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:01:11,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:01:11,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:01:11,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:01:11,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:01:11,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:01:11,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:01:11,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:01:11,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:01:11,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:01:11,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:01:11,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:01:11,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:01:11,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:01:11,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:01:11,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:01:11,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:01:11,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:01:11,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:01:11,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:01:11,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:01:11,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:01:11,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:01:11,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:01:11,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:01:11,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:01:11,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:01:11,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:01:11,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:01:11,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:01:11,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:01:11,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:01:11,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:01:11,994 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 18:01:12,020 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:01:12,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:01:12,021 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:01:12,022 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:01:12,023 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:01:12,023 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:01:12,023 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:01:12,024 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:01:12,024 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:01:12,025 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:01:12,025 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:01:12,025 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:01:12,026 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:01:12,026 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:01:12,026 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:01:12,027 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:01:12,027 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:01:12,028 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:01:12,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:01:12,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:01:12,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:01:12,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:01:12,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:01:12,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:01:12,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:01:12,031 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:01:12,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:01:12,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:01:12,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:01:12,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:01:12,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:01:12,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:01:12,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:01:12,034 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:01:12,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:01:12,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:01:12,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:01:12,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:01:12,035 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b31204b1d3e0e886bec362e36aa7180804ba0e69acfc232c20abd4ca078cb80 [2021-11-25 18:01:12,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:01:12,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:01:12,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:01:12,313 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:01:12,314 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:01:12,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-25 18:01:12,423 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/bin/utaipan-eEHZpOm5b7/data/b3fd7f563/960c358f2c4e45c79c0a872bdaa8a9e1/FLAGdab7ffe59 [2021-11-25 18:01:13,443 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:01:13,444 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-25 18:01:13,527 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/bin/utaipan-eEHZpOm5b7/data/b3fd7f563/960c358f2c4e45c79c0a872bdaa8a9e1/FLAGdab7ffe59 [2021-11-25 18:01:13,748 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/bin/utaipan-eEHZpOm5b7/data/b3fd7f563/960c358f2c4e45c79c0a872bdaa8a9e1 [2021-11-25 18:01:13,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:01:13,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:01:13,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:01:13,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:01:13,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:01:13,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:01:13" (1/1) ... [2021-11-25 18:01:13,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf2c8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:13, skipping insertion in model container [2021-11-25 18:01:13,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:01:13" (1/1) ... [2021-11-25 18:01:13,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:01:13,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:01:19,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524215,524228] [2021-11-25 18:01:19,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524360,524373] [2021-11-25 18:01:19,195 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:01:19,254 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:01:19,795 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524215,524228] [2021-11-25 18:01:19,796 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524360,524373] [2021-11-25 18:01:19,800 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:01:20,155 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:01:20,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:20 WrapperNode [2021-11-25 18:01:20,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:01:20,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:01:20,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:01:20,157 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:01:20,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:20" (1/1) ... [2021-11-25 18:01:20,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:20" (1/1) ... [2021-11-25 18:01:20,711 INFO L137 Inliner]: procedures = 586, calls = 6377, calls flagged for inlining = 287, calls inlined = 259, statements flattened = 12111 [2021-11-25 18:01:20,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:01:20,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:01:20,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:01:20,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:01:20,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:20" (1/1) ... [2021-11-25 18:01:20,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:20" (1/1) ... [2021-11-25 18:01:20,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:20" (1/1) ... [2021-11-25 18:01:20,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:20" (1/1) ... [2021-11-25 18:01:21,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:20" (1/1) ... [2021-11-25 18:01:21,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:20" (1/1) ... [2021-11-25 18:01:21,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:20" (1/1) ... [2021-11-25 18:01:21,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:01:21,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:01:21,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:01:21,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:01:21,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:20" (1/1) ... [2021-11-25 18:01:21,445 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:01:21,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:01:21,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:01:21,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcdd81e1-5ea6-4e8f-bbde-5f0f2e116bc4/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:01:21,525 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-25 18:01:21,525 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-25 18:01:21,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 18:01:21,525 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 18:01:21,525 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 18:01:21,525 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 18:01:21,525 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_vfta [2021-11-25 18:01:21,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_vfta [2021-11-25 18:01:21,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 18:01:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 18:01:21,527 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_standby_eeprom [2021-11-25 18:01:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_standby_eeprom [2021-11-25 18:01:21,527 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-25 18:01:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-25 18:01:21,527 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 18:01:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 18:01:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-25 18:01:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-25 18:01:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 18:01:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 18:01:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_alloc_rx_buffers [2021-11-25 18:01:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_alloc_rx_buffers [2021-11-25 18:01:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure mac_addr_valid [2021-11-25 18:01:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_addr_valid [2021-11-25 18:01:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_add_vid [2021-11-25 18:01:21,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_add_vid [2021-11-25 18:01:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_tx_resources [2021-11-25 18:01:21,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_tx_resources [2021-11-25 18:01:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-25 18:01:21,529 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-25 18:01:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_multi [2021-11-25 18:01:21,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_multi [2021-11-25 18:01:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_rar_set [2021-11-25 18:01:21,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_rar_set [2021-11-25 18:01:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 18:01:21,530 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 18:01:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 18:01:21,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 18:01:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 18:01:21,531 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 18:01:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 18:01:21,532 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 18:01:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_resume [2021-11-25 18:01:21,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_resume [2021-11-25 18:01:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 18:01:21,532 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 18:01:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 18:01:21,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 18:01:21,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:01:21,534 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-25 18:01:21,534 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-25 18:01:21,534 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_eeprom_checksum [2021-11-25 18:01:21,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_eeprom_checksum [2021-11-25 18:01:21,534 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 18:01:21,534 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 18:01:21,535 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_netpoll [2021-11-25 18:01:21,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_netpoll [2021-11-25 18:01:21,535 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 18:01:21,536 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 18:01:21,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 18:01:21,536 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_raise_clock [2021-11-25 18:01:21,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_raise_clock [2021-11-25 18:01:21,536 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_eeprom [2021-11-25 18:01:21,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_eeprom [2021-11-25 18:01:21,536 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 18:01:21,536 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 18:01:21,537 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_identify_xpak_vendor [2021-11-25 18:01:21,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_identify_xpak_vendor [2021-11-25 18:01:21,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 18:01:21,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 18:01:21,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 18:01:21,537 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_mac_reset [2021-11-25 18:01:21,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_mac_reset [2021-11-25 18:01:21,537 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_eeprom [2021-11-25 18:01:21,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_eeprom [2021-11-25 18:01:21,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:01:21,538 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_rx_resources [2021-11-25 18:01:21,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_rx_resources [2021-11-25 18:01:21,539 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 18:01:21,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 18:01:21,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-25 18:01:21,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-25 18:01:21,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 18:01:21,540 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 18:01:21,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 18:01:21,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 18:01:21,540 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-25 18:01:21,541 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-25 18:01:21,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 18:01:21,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 18:01:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 18:01:21,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 18:01:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 18:01:21,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 18:01:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_regs_len [2021-11-25 18:01:21,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_regs_len [2021-11-25 18:01:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-25 18:01:21,543 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-25 18:01:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 18:01:21,543 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 18:01:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_phy_reg [2021-11-25 18:01:21,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_phy_reg [2021-11-25 18:01:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_for_link [2021-11-25 18:01:21,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_for_link [2021-11-25 18:01:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_option [2021-11-25 18:01:21,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_option [2021-11-25 18:01:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:01:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 18:01:21,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 18:01:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 18:01:21,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 18:01:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-25 18:01:21,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-25 18:01:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-25 18:01:21,545 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-25 18:01:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:01:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-25 18:01:21,545 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-25 18:01:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 18:01:21,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 18:01:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 18:01:21,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 18:01:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:01:21,546 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:01:21,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:01:21,546 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_lower_clock [2021-11-25 18:01:21,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_lower_clock [2021-11-25 18:01:21,546 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_reset [2021-11-25 18:01:21,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_reset [2021-11-25 18:01:21,546 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:01:21,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:01:21,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-25 18:01:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-25 18:01:21,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-25 18:01:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-25 18:01:21,547 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_remove [2021-11-25 18:01:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_remove [2021-11-25 18:01:21,547 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-25 18:01:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-25 18:01:21,547 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_len [2021-11-25 18:01:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_len [2021-11-25 18:01:21,548 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_up [2021-11-25 18:01:21,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_up [2021-11-25 18:01:21,548 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_irq_enable [2021-11-25 18:01:21,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_irq_enable [2021-11-25 18:01:21,548 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-25 18:01:21,548 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-25 18:01:21,548 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 18:01:21,548 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 18:01:21,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 18:01:21,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 18:01:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_tx_resources [2021-11-25 18:01:21,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_tx_resources [2021-11-25 18:01:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_maybe_stop_tx [2021-11-25 18:01:21,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_maybe_stop_tx [2021-11-25 18:01:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_intr [2021-11-25 18:01:21,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_intr [2021-11-25 18:01:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-25 18:01:21,549 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-25 18:01:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 18:01:21,550 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 18:01:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_open [2021-11-25 18:01:21,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_open [2021-11-25 18:01:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:01:21,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:01:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-25 18:01:21,550 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-25 18:01:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-25 18:01:21,550 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-25 18:01:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 18:01:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 18:01:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 18:01:21,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 18:01:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 18:01:21,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 18:01:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 18:01:21,551 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 18:01:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-25 18:01:21,551 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-25 18:01:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_update_stats [2021-11-25 18:01:21,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_update_stats [2021-11-25 18:01:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 18:01:21,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 18:01:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_and_get_eeprom_data [2021-11-25 18:01:21,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_and_get_eeprom_data [2021-11-25 18:01:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-25 18:01:21,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-25 18:01:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:01:21,552 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:01:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 18:01:21,553 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 18:01:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-11-25 18:01:21,553 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-11-25 18:01:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_close [2021-11-25 18:01:21,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_close [2021-11-25 18:01:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-25 18:01:21,553 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-25 18:01:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-25 18:01:21,553 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-25 18:01:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 18:01:21,554 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 18:01:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-25 18:01:21,554 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-25 18:01:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:01:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-25 18:01:21,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-25 18:01:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 18:01:21,554 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 18:01:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:01:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-25 18:01:21,555 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-25 18:01:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 18:01:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 18:01:21,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 18:01:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-25 18:01:21,555 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-25 18:01:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 18:01:21,555 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 18:01:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 18:01:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 18:01:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 18:01:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 18:01:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_link_reset [2021-11-25 18:01:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_link_reset [2021-11-25 18:01:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_speed_duplex [2021-11-25 18:01:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_speed_duplex [2021-11-25 18:01:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-25 18:01:21,557 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-25 18:01:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-11-25 18:01:21,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-11-25 18:01:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-25 18:01:21,557 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-25 18:01:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 18:01:21,557 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 18:01:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-25 18:01:21,558 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-25 18:01:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 18:01:21,558 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 18:01:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_unmap_and_free_tx_resource [2021-11-25 18:01:21,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_unmap_and_free_tx_resource [2021-11-25 18:01:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-25 18:01:21,558 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-25 18:01:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 18:01:21,559 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 18:01:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:01:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_eeprom [2021-11-25 18:01:21,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_eeprom [2021-11-25 18:01:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 18:01:21,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 18:01:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_phy_reg [2021-11-25 18:01:21,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_phy_reg [2021-11-25 18:01:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 18:01:21,560 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 18:01:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_ee_mac_addr [2021-11-25 18:01:21,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_ee_mac_addr [2021-11-25 18:01:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-25 18:01:21,560 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-25 18:01:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-25 18:01:21,560 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-25 18:01:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_tx_ring [2021-11-25 18:01:21,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_tx_ring [2021-11-25 18:01:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2021-11-25 18:01:21,561 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2021-11-25 18:01:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-25 18:01:21,561 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-25 18:01:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_rx_ring [2021-11-25 18:01:21,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_rx_ring [2021-11-25 18:01:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_shift_out_bits [2021-11-25 18:01:21,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_shift_out_bits [2021-11-25 18:01:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_down [2021-11-25 18:01:21,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_down [2021-11-25 18:01:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout [2021-11-25 18:01:21,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout [2021-11-25 18:01:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_rx_resources [2021-11-25 18:01:21,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_rx_resources [2021-11-25 18:01:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 18:01:21,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 18:01:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-25 18:01:21,563 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-25 18:01:21,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 18:01:21,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 18:01:21,563 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-25 18:01:21,563 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-25 18:01:21,563 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-25 18:01:21,563 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-25 18:01:21,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:01:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 18:01:21,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 18:01:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-25 18:01:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_data [2021-11-25 18:01:21,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_data [2021-11-25 18:01:22,926 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:01:22,933 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:01:23,352 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 18:01:52,245 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 18:01:52,677 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:01:55,058 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:01:55,058 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 18:01:55,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:01:55 BoogieIcfgContainer [2021-11-25 18:01:55,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:01:55,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:01:55,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:01:55,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:01:55,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:01:13" (1/3) ... [2021-11-25 18:01:55,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f7987d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:01:55, skipping insertion in model container [2021-11-25 18:01:55,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:20" (2/3) ... [2021-11-25 18:01:55,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f7987d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:01:55, skipping insertion in model container [2021-11-25 18:01:55,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:01:55" (3/3) ... [2021-11-25 18:01:55,075 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-25 18:01:55,079 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:01:55,079 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 18:01:55,132 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:01:55,138 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:01:55,138 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 18:01:55,214 INFO L276 IsEmpty]: Start isEmpty. Operand has 2560 states, 1475 states have (on average 1.2447457627118643) internal successors, (1836), 1510 states have internal predecessors, (1836), 947 states have call successors, (947), 137 states have call predecessors, (947), 136 states have return successors, (942), 932 states have call predecessors, (942), 942 states have call successors, (942) [2021-11-25 18:01:55,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-25 18:01:55,242 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:01:55,243 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:01:55,244 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:01:55,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:01:55,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1391829722, now seen corresponding path program 1 times [2021-11-25 18:01:55,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:01:55,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444811650] [2021-11-25 18:01:55,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:01:55,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:01:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:01:56,350 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-11-25 18:01:56,351 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:01:56,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444811650] [2021-11-25 18:01:56,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444811650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:01:56,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:01:56,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:01:56,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790302062] [2021-11-25 18:01:56,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:01:56,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:01:56,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:01:56,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:01:56,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:01:56,408 INFO L87 Difference]: Start difference. First operand has 2560 states, 1475 states have (on average 1.2447457627118643) internal successors, (1836), 1510 states have internal predecessors, (1836), 947 states have call successors, (947), 137 states have call predecessors, (947), 136 states have return successors, (942), 932 states have call predecessors, (942), 942 states have call successors, (942) Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2021-11-25 18:01:59,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:02:03,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:02:09,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:02:10,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:02:10,459 INFO L93 Difference]: Finished difference Result 7105 states and 10433 transitions. [2021-11-25 18:02:10,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:02:10,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 197 [2021-11-25 18:02:10,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:02:10,532 INFO L225 Difference]: With dead ends: 7105 [2021-11-25 18:02:10,532 INFO L226 Difference]: Without dead ends: 4509 [2021-11-25 18:02:10,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:02:10,568 INFO L933 BasicCegarLoop]: 4173 mSDtfsCounter, 2918 mSDsluCounter, 3652 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2918 SdHoareTripleChecker+Valid, 7371 SdHoareTripleChecker+Invalid, 1049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:02:10,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2918 Valid, 7371 Invalid, 1049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1028 Invalid, 2 Unknown, 0 Unchecked, 13.6s Time] [2021-11-25 18:02:10,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2021-11-25 18:02:11,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 4504. [2021-11-25 18:02:11,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4504 states, 2615 states have (on average 1.229827915869981) internal successors, (3216), 2670 states have internal predecessors, (3216), 1649 states have call successors, (1649), 238 states have call predecessors, (1649), 238 states have return successors, (1649), 1631 states have call predecessors, (1649), 1649 states have call successors, (1649) [2021-11-25 18:02:11,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4504 states to 4504 states and 6514 transitions. [2021-11-25 18:02:11,316 INFO L78 Accepts]: Start accepts. Automaton has 4504 states and 6514 transitions. Word has length 197 [2021-11-25 18:02:11,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:02:11,317 INFO L470 AbstractCegarLoop]: Abstraction has 4504 states and 6514 transitions. [2021-11-25 18:02:11,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2021-11-25 18:02:11,318 INFO L276 IsEmpty]: Start isEmpty. Operand 4504 states and 6514 transitions. [2021-11-25 18:02:11,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-25 18:02:11,329 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:02:11,329 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 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] [2021-11-25 18:02:11,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:02:11,330 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:02:11,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:02:11,331 INFO L85 PathProgramCache]: Analyzing trace with hash -103541097, now seen corresponding path program 1 times [2021-11-25 18:02:11,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:02:11,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150471965] [2021-11-25 18:02:11,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:02:11,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:02:11,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:02:11,870 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2021-11-25 18:02:11,873 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:02:11,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150471965] [2021-11-25 18:02:11,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150471965] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:02:11,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:02:11,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:02:11,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887585612] [2021-11-25 18:02:11,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:02:11,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:02:11,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:02:11,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:02:11,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:02:11,886 INFO L87 Difference]: Start difference. First operand 4504 states and 6514 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-25 18:02:20,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:02:26,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:02:26,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:02:26,716 INFO L93 Difference]: Finished difference Result 11182 states and 16080 transitions. [2021-11-25 18:02:26,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:02:26,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 212 [2021-11-25 18:02:26,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:02:26,782 INFO L225 Difference]: With dead ends: 11182 [2021-11-25 18:02:26,783 INFO L226 Difference]: Without dead ends: 6711 [2021-11-25 18:02:26,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:02:26,817 INFO L933 BasicCegarLoop]: 3850 mSDtfsCounter, 2591 mSDsluCounter, 3529 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2591 SdHoareTripleChecker+Valid, 6957 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:02:26,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2591 Valid, 6957 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 994 Invalid, 2 Unknown, 0 Unchecked, 14.4s Time] [2021-11-25 18:02:26,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6711 states. [2021-11-25 18:02:27,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6711 to 6705. [2021-11-25 18:02:27,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6705 states, 3884 states have (on average 1.2188465499485066) internal successors, (4734), 3967 states have internal predecessors, (4734), 2433 states have call successors, (2433), 387 states have call predecessors, (2433), 386 states have return successors, (2434), 2403 states have call predecessors, (2434), 2433 states have call successors, (2434) [2021-11-25 18:02:27,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6705 states to 6705 states and 9601 transitions. [2021-11-25 18:02:27,363 INFO L78 Accepts]: Start accepts. Automaton has 6705 states and 9601 transitions. Word has length 212 [2021-11-25 18:02:27,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:02:27,364 INFO L470 AbstractCegarLoop]: Abstraction has 6705 states and 9601 transitions. [2021-11-25 18:02:27,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-25 18:02:27,365 INFO L276 IsEmpty]: Start isEmpty. Operand 6705 states and 9601 transitions. [2021-11-25 18:02:27,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-11-25 18:02:27,371 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:02:27,371 INFO L514 BasicCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:02:27,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:02:27,372 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:02:27,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:02:27,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1760472060, now seen corresponding path program 1 times [2021-11-25 18:02:27,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:02:27,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602050321] [2021-11-25 18:02:27,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:02:27,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:02:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:02:27,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1118 trivial. 0 not checked. [2021-11-25 18:02:27,843 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:02:27,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602050321] [2021-11-25 18:02:27,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602050321] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:02:27,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:02:27,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:02:27,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583240675] [2021-11-25 18:02:27,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:02:27,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:02:27,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:02:27,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:02:27,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:02:27,857 INFO L87 Difference]: Start difference. First operand 6705 states and 9601 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-25 18:02:32,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:02:36,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:02:38,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:02:40,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:02:46,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:02:46,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:02:46,793 INFO L93 Difference]: Finished difference Result 15855 states and 22714 transitions. [2021-11-25 18:02:46,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:02:46,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 240 [2021-11-25 18:02:46,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:02:46,871 INFO L225 Difference]: With dead ends: 15855 [2021-11-25 18:02:46,872 INFO L226 Difference]: Without dead ends: 9183 [2021-11-25 18:02:46,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:02:46,911 INFO L933 BasicCegarLoop]: 5793 mSDtfsCounter, 3006 mSDsluCounter, 3584 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3006 SdHoareTripleChecker+Valid, 8926 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:02:46,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3006 Valid, 8926 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1366 Invalid, 2 Unknown, 0 Unchecked, 18.6s Time] [2021-11-25 18:02:46,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9183 states. [2021-11-25 18:02:47,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9183 to 9176. [2021-11-25 18:02:47,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9176 states, 5319 states have (on average 1.216394059033653) internal successors, (6470), 5432 states have internal predecessors, (6470), 3328 states have call successors, (3328), 528 states have call predecessors, (3328), 527 states have return successors, (3329), 3289 states have call predecessors, (3329), 3328 states have call successors, (3329) [2021-11-25 18:02:47,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9176 states to 9176 states and 13127 transitions. [2021-11-25 18:02:47,652 INFO L78 Accepts]: Start accepts. Automaton has 9176 states and 13127 transitions. Word has length 240 [2021-11-25 18:02:47,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:02:47,657 INFO L470 AbstractCegarLoop]: Abstraction has 9176 states and 13127 transitions. [2021-11-25 18:02:47,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-25 18:02:47,658 INFO L276 IsEmpty]: Start isEmpty. Operand 9176 states and 13127 transitions. [2021-11-25 18:02:47,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2021-11-25 18:02:47,667 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:02:47,668 INFO L514 BasicCegarLoop]: trace histogram [22, 16, 16, 16, 16, 16, 16, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:02:47,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:02:47,668 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:02:47,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:02:47,669 INFO L85 PathProgramCache]: Analyzing trace with hash 2106972346, now seen corresponding path program 1 times [2021-11-25 18:02:47,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:02:47,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292088173] [2021-11-25 18:02:47,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:02:47,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:02:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:02:49,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1292 trivial. 0 not checked. [2021-11-25 18:02:49,068 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:02:49,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292088173] [2021-11-25 18:02:49,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292088173] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:02:49,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:02:49,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 18:02:49,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733918604] [2021-11-25 18:02:49,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:02:49,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:02:49,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:02:49,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:02:49,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:02:49,072 INFO L87 Difference]: Start difference. First operand 9176 states and 13127 transitions. Second operand has 6 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-25 18:02:57,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:02:59,291 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:03:13,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:03:21,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:03:26,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:03:27,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:03:27,288 INFO L93 Difference]: Finished difference Result 18185 states and 26012 transitions. [2021-11-25 18:03:27,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 18:03:27,289 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) Word has length 302 [2021-11-25 18:03:27,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:03:27,408 INFO L225 Difference]: With dead ends: 18185 [2021-11-25 18:03:27,408 INFO L226 Difference]: Without dead ends: 18183 [2021-11-25 18:03:27,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-25 18:03:27,422 INFO L933 BasicCegarLoop]: 4078 mSDtfsCounter, 3502 mSDsluCounter, 15398 mSDsCounter, 0 mSdLazyCounter, 4150 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3506 SdHoareTripleChecker+Valid, 17624 SdHoareTripleChecker+Invalid, 4154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4150 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:03:27,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3506 Valid, 17624 Invalid, 4154 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 4150 Invalid, 2 Unknown, 0 Unchecked, 36.6s Time] [2021-11-25 18:03:27,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18183 states. [2021-11-25 18:03:29,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18183 to 18178. [2021-11-25 18:03:29,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18178 states, 10540 states have (on average 1.216413662239089) internal successors, (12821), 10761 states have internal predecessors, (12821), 6591 states have call successors, (6591), 1047 states have call predecessors, (6591), 1045 states have return successors, (6593), 6510 states have call predecessors, (6593), 6591 states have call successors, (6593) [2021-11-25 18:03:29,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18178 states to 18178 states and 26005 transitions. [2021-11-25 18:03:29,459 INFO L78 Accepts]: Start accepts. Automaton has 18178 states and 26005 transitions. Word has length 302 [2021-11-25 18:03:29,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:03:29,460 INFO L470 AbstractCegarLoop]: Abstraction has 18178 states and 26005 transitions. [2021-11-25 18:03:29,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-25 18:03:29,461 INFO L276 IsEmpty]: Start isEmpty. Operand 18178 states and 26005 transitions. [2021-11-25 18:03:29,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-11-25 18:03:29,470 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:03:29,470 INFO L514 BasicCegarLoop]: trace histogram [22, 16, 16, 16, 16, 16, 16, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:03:29,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:03:29,471 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:03:29,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:03:29,471 INFO L85 PathProgramCache]: Analyzing trace with hash 562170878, now seen corresponding path program 1 times [2021-11-25 18:03:29,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:03:29,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710645811] [2021-11-25 18:03:29,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:03:29,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:03:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:03:30,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1290 trivial. 0 not checked. [2021-11-25 18:03:30,795 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:03:30,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710645811] [2021-11-25 18:03:30,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710645811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:03:30,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:03:30,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 18:03:30,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166465232] [2021-11-25 18:03:30,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:03:30,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:03:30,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:03:30,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:03:30,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:03:30,798 INFO L87 Difference]: Start difference. First operand 18178 states and 26005 transitions. Second operand has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (34), 3 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-25 18:03:40,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:03:51,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:03:56,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:03:58,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:04:00,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:04:02,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:04:10,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:04:13,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:04:15,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:04:17,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:04:21,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:04:21,905 INFO L93 Difference]: Finished difference Result 27345 states and 39136 transitions. [2021-11-25 18:04:21,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 18:04:21,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (34), 3 states have call predecessors, (34), 2 states have call successors, (34) Word has length 306 [2021-11-25 18:04:21,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:04:22,044 INFO L225 Difference]: With dead ends: 27345 [2021-11-25 18:04:22,044 INFO L226 Difference]: Without dead ends: 27343 [2021-11-25 18:04:22,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-25 18:04:22,062 INFO L933 BasicCegarLoop]: 4092 mSDtfsCounter, 3548 mSDsluCounter, 15425 mSDsCounter, 0 mSdLazyCounter, 4179 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3550 SdHoareTripleChecker+Valid, 17657 SdHoareTripleChecker+Invalid, 4188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4179 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:04:22,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3550 Valid, 17657 Invalid, 4188 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 4179 Invalid, 7 Unknown, 0 Unchecked, 48.9s Time] [2021-11-25 18:04:22,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27343 states. [2021-11-25 18:04:25,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27343 to 27316. [2021-11-25 18:04:25,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27316 states, 15839 states have (on average 1.216175263589873) internal successors, (19263), 16173 states have internal predecessors, (19263), 9903 states have call successors, (9903), 1575 states have call predecessors, (9903), 1572 states have return successors, (9906), 9782 states have call predecessors, (9906), 9903 states have call successors, (9906) [2021-11-25 18:04:25,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27316 states to 27316 states and 39072 transitions. [2021-11-25 18:04:25,268 INFO L78 Accepts]: Start accepts. Automaton has 27316 states and 39072 transitions. Word has length 306 [2021-11-25 18:04:25,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:04:25,269 INFO L470 AbstractCegarLoop]: Abstraction has 27316 states and 39072 transitions. [2021-11-25 18:04:25,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (34), 3 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-25 18:04:25,269 INFO L276 IsEmpty]: Start isEmpty. Operand 27316 states and 39072 transitions. [2021-11-25 18:04:25,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2021-11-25 18:04:25,324 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:04:25,324 INFO L514 BasicCegarLoop]: trace histogram [30, 18, 18, 18, 18, 18, 18, 17, 17, 8, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:04:25,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:04:25,325 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:04:25,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:04:25,327 INFO L85 PathProgramCache]: Analyzing trace with hash -2093228599, now seen corresponding path program 1 times [2021-11-25 18:04:25,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:04:25,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718544035] [2021-11-25 18:04:25,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:04:25,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:04:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:04:26,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2339 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2321 trivial. 0 not checked. [2021-11-25 18:04:26,414 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:04:26,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718544035] [2021-11-25 18:04:26,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718544035] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:04:26,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:04:26,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:04:26,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42993830] [2021-11-25 18:04:26,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:04:26,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:04:26,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:04:26,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:04:26,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:04:26,418 INFO L87 Difference]: Start difference. First operand 27316 states and 39072 transitions. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (97), 2 states have call predecessors, (97), 2 states have call successors, (97) [2021-11-25 18:04:33,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:04:37,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:04:39,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:04:44,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:04:44,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:04:44,897 INFO L93 Difference]: Finished difference Result 62267 states and 90082 transitions. [2021-11-25 18:04:44,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:04:44,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (97), 2 states have call predecessors, (97), 2 states have call successors, (97) Word has length 676 [2021-11-25 18:04:44,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:04:45,089 INFO L225 Difference]: With dead ends: 62267 [2021-11-25 18:04:45,090 INFO L226 Difference]: Without dead ends: 34984 [2021-11-25 18:04:45,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:04:45,211 INFO L933 BasicCegarLoop]: 3973 mSDtfsCounter, 675 mSDsluCounter, 3826 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 7335 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:04:45,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [987 Valid, 7335 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1027 Invalid, 2 Unknown, 0 Unchecked, 16.5s Time] [2021-11-25 18:04:45,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34984 states. [2021-11-25 18:04:48,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34984 to 27322. [2021-11-25 18:04:48,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27322 states, 15845 states have (on average 1.216093404859577) internal successors, (19269), 16179 states have internal predecessors, (19269), 9903 states have call successors, (9903), 1575 states have call predecessors, (9903), 1572 states have return successors, (9906), 9782 states have call predecessors, (9906), 9903 states have call successors, (9906) [2021-11-25 18:04:48,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27322 states to 27322 states and 39078 transitions. [2021-11-25 18:04:48,373 INFO L78 Accepts]: Start accepts. Automaton has 27322 states and 39078 transitions. Word has length 676 [2021-11-25 18:04:48,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:04:48,375 INFO L470 AbstractCegarLoop]: Abstraction has 27322 states and 39078 transitions. [2021-11-25 18:04:48,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (97), 2 states have call predecessors, (97), 2 states have call successors, (97) [2021-11-25 18:04:48,376 INFO L276 IsEmpty]: Start isEmpty. Operand 27322 states and 39078 transitions. [2021-11-25 18:04:48,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 679 [2021-11-25 18:04:48,429 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:04:48,429 INFO L514 BasicCegarLoop]: trace histogram [30, 18, 18, 18, 18, 18, 18, 17, 17, 8, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:04:48,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 18:04:48,430 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:04:48,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:04:48,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1410583985, now seen corresponding path program 1 times [2021-11-25 18:04:48,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:04:48,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380962881] [2021-11-25 18:04:48,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:04:48,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:04:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:04:49,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2339 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2321 trivial. 0 not checked. [2021-11-25 18:04:49,887 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:04:49,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380962881] [2021-11-25 18:04:49,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380962881] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:04:49,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:04:49,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:04:49,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697908709] [2021-11-25 18:04:49,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:04:49,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:04:49,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:04:49,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:04:49,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:04:49,892 INFO L87 Difference]: Start difference. First operand 27322 states and 39078 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 3 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (97), 3 states have call predecessors, (97), 3 states have call successors, (97) [2021-11-25 18:04:53,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:04:58,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:02,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:04,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:11,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:12,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:05:12,579 INFO L93 Difference]: Finished difference Result 62682 states and 89548 transitions. [2021-11-25 18:05:12,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:05:12,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 3 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (97), 3 states have call predecessors, (97), 3 states have call successors, (97) Word has length 678 [2021-11-25 18:05:12,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:05:12,734 INFO L225 Difference]: With dead ends: 62682 [2021-11-25 18:05:12,735 INFO L226 Difference]: Without dead ends: 35393 [2021-11-25 18:05:12,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:05:12,849 INFO L933 BasicCegarLoop]: 5429 mSDtfsCounter, 2622 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2622 SdHoareTripleChecker+Valid, 8554 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:05:12,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2622 Valid, 8554 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1323 Invalid, 2 Unknown, 0 Unchecked, 20.8s Time] [2021-11-25 18:05:12,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35393 states. [2021-11-25 18:05:15,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35393 to 35383. [2021-11-25 18:05:15,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35383 states, 20627 states have (on average 1.2206816308721578) internal successors, (25179), 21063 states have internal predecessors, (25179), 12645 states have call successors, (12645), 2115 states have call predecessors, (12645), 2109 states have return successors, (12651), 12482 states have call predecessors, (12651), 12645 states have call successors, (12651) [2021-11-25 18:05:15,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35383 states to 35383 states and 50475 transitions. [2021-11-25 18:05:15,838 INFO L78 Accepts]: Start accepts. Automaton has 35383 states and 50475 transitions. Word has length 678 [2021-11-25 18:05:15,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:05:15,839 INFO L470 AbstractCegarLoop]: Abstraction has 35383 states and 50475 transitions. [2021-11-25 18:05:15,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 3 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (97), 3 states have call predecessors, (97), 3 states have call successors, (97) [2021-11-25 18:05:15,839 INFO L276 IsEmpty]: Start isEmpty. Operand 35383 states and 50475 transitions. [2021-11-25 18:05:15,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2021-11-25 18:05:15,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:05:15,887 INFO L514 BasicCegarLoop]: trace histogram [32, 18, 18, 18, 18, 18, 18, 17, 17, 8, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:05:15,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 18:05:15,887 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:05:15,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:05:15,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1233384442, now seen corresponding path program 1 times [2021-11-25 18:05:15,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:05:15,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970644789] [2021-11-25 18:05:15,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:15,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:05:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:05:17,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2457 trivial. 0 not checked. [2021-11-25 18:05:17,785 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:05:17,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970644789] [2021-11-25 18:05:17,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970644789] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:05:17,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:05:17,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:05:17,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851912503] [2021-11-25 18:05:17,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:05:17,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:05:17,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:05:17,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:05:17,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:05:17,789 INFO L87 Difference]: Start difference. First operand 35383 states and 50475 transitions. Second operand has 5 states, 5 states have (on average 54.0) internal successors, (270), 4 states have internal predecessors, (270), 3 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 4 states have call predecessors, (99), 3 states have call successors, (99) [2021-11-25 18:05:30,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:32,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:36,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:44,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:50,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:54,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:05:54,693 INFO L93 Difference]: Finished difference Result 78498 states and 111730 transitions. [2021-11-25 18:05:54,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:05:54,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.0) internal successors, (270), 4 states have internal predecessors, (270), 3 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 4 states have call predecessors, (99), 3 states have call successors, (99) Word has length 700 [2021-11-25 18:05:54,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:05:54,888 INFO L225 Difference]: With dead ends: 78498 [2021-11-25 18:05:54,888 INFO L226 Difference]: Without dead ends: 43148 [2021-11-25 18:05:54,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:05:54,992 INFO L933 BasicCegarLoop]: 5428 mSDtfsCounter, 2570 mSDsluCounter, 15962 mSDsCounter, 0 mSdLazyCounter, 2916 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2570 SdHoareTripleChecker+Valid, 19411 SdHoareTripleChecker+Invalid, 2920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2916 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:05:54,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2570 Valid, 19411 Invalid, 2920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2916 Invalid, 3 Unknown, 0 Unchecked, 34.5s Time] [2021-11-25 18:05:55,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43148 states. [2021-11-25 18:05:58,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43148 to 43120. [2021-11-25 18:05:58,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43120 states, 25094 states have (on average 1.215230732446003) internal successors, (30495), 25632 states have internal predecessors, (30495), 15378 states have call successors, (15378), 2646 states have call predecessors, (15378), 2646 states have return successors, (15396), 15182 states have call predecessors, (15396), 15378 states have call successors, (15396) [2021-11-25 18:05:58,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43120 states to 43120 states and 61269 transitions. [2021-11-25 18:05:58,218 INFO L78 Accepts]: Start accepts. Automaton has 43120 states and 61269 transitions. Word has length 700 [2021-11-25 18:05:58,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:05:58,220 INFO L470 AbstractCegarLoop]: Abstraction has 43120 states and 61269 transitions. [2021-11-25 18:05:58,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.0) internal successors, (270), 4 states have internal predecessors, (270), 3 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 4 states have call predecessors, (99), 3 states have call successors, (99) [2021-11-25 18:05:58,220 INFO L276 IsEmpty]: Start isEmpty. Operand 43120 states and 61269 transitions. [2021-11-25 18:05:58,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2021-11-25 18:05:58,268 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:05:58,269 INFO L514 BasicCegarLoop]: trace histogram [32, 18, 18, 18, 18, 18, 18, 17, 17, 8, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:05:58,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 18:05:58,269 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:05:58,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:05:58,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1746248264, now seen corresponding path program 1 times [2021-11-25 18:05:58,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:05:58,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110316782] [2021-11-25 18:05:58,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:58,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:05:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:06:00,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2457 trivial. 0 not checked. [2021-11-25 18:06:00,177 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:06:00,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110316782] [2021-11-25 18:06:00,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110316782] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:06:00,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:06:00,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:06:00,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888348669] [2021-11-25 18:06:00,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:06:00,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:06:00,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:06:00,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:06:00,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:06:00,181 INFO L87 Difference]: Start difference. First operand 43120 states and 61269 transitions. Second operand has 5 states, 5 states have (on average 54.2) internal successors, (271), 4 states have internal predecessors, (271), 3 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 4 states have call predecessors, (99), 3 states have call successors, (99) [2021-11-25 18:06:05,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:18,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:20,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:26,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:32,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:38,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:06:38,363 INFO L93 Difference]: Finished difference Result 94014 states and 133366 transitions. [2021-11-25 18:06:38,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:06:38,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.2) internal successors, (271), 4 states have internal predecessors, (271), 3 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 4 states have call predecessors, (99), 3 states have call successors, (99) Word has length 701 [2021-11-25 18:06:38,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:06:38,704 INFO L225 Difference]: With dead ends: 94014 [2021-11-25 18:06:38,705 INFO L226 Difference]: Without dead ends: 50927 [2021-11-25 18:06:38,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:06:38,831 INFO L933 BasicCegarLoop]: 5433 mSDtfsCounter, 2591 mSDsluCounter, 15952 mSDsCounter, 0 mSdLazyCounter, 2922 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2591 SdHoareTripleChecker+Valid, 19406 SdHoareTripleChecker+Invalid, 2928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2922 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:06:38,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2591 Valid, 19406 Invalid, 2928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2922 Invalid, 3 Unknown, 0 Unchecked, 35.3s Time] [2021-11-25 18:06:38,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50927 states. [2021-11-25 18:06:42,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50927 to 50899. [2021-11-25 18:06:42,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50899 states, 29591 states have (on average 1.2112128687776689) internal successors, (35841), 30231 states have internal predecessors, (35841), 18111 states have call successors, (18111), 3189 states have call predecessors, (18111), 3195 states have return successors, (18141), 17882 states have call predecessors, (18141), 18111 states have call successors, (18141) [2021-11-25 18:06:42,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50899 states to 50899 states and 72093 transitions. [2021-11-25 18:06:42,709 INFO L78 Accepts]: Start accepts. Automaton has 50899 states and 72093 transitions. Word has length 701 [2021-11-25 18:06:42,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:06:42,710 INFO L470 AbstractCegarLoop]: Abstraction has 50899 states and 72093 transitions. [2021-11-25 18:06:42,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.2) internal successors, (271), 4 states have internal predecessors, (271), 3 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 4 states have call predecessors, (99), 3 states have call successors, (99) [2021-11-25 18:06:42,710 INFO L276 IsEmpty]: Start isEmpty. Operand 50899 states and 72093 transitions. [2021-11-25 18:06:42,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2021-11-25 18:06:42,740 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:06:42,741 INFO L514 BasicCegarLoop]: trace histogram [32, 18, 18, 18, 18, 18, 18, 17, 17, 8, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:06:42,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 18:06:42,741 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:06:42,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:06:42,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1804823105, now seen corresponding path program 1 times [2021-11-25 18:06:42,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:06:42,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634709154] [2021-11-25 18:06:42,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:06:42,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:06:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:06:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2457 trivial. 0 not checked. [2021-11-25 18:06:44,683 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:06:44,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634709154] [2021-11-25 18:06:44,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634709154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:06:44,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:06:44,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:06:44,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497156767] [2021-11-25 18:06:44,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:06:44,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:06:44,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:06:44,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:06:44,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:06:44,687 INFO L87 Difference]: Start difference. First operand 50899 states and 72093 transitions. Second operand has 5 states, 5 states have (on average 54.4) internal successors, (272), 4 states have internal predecessors, (272), 3 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 4 states have call predecessors, (99), 3 states have call successors, (99) [2021-11-25 18:06:56,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:58,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:03,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:09,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:18,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:20,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:22,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:22,785 INFO L93 Difference]: Finished difference Result 110484 states and 156234 transitions. [2021-11-25 18:07:22,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:07:22,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.4) internal successors, (272), 4 states have internal predecessors, (272), 3 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 4 states have call predecessors, (99), 3 states have call successors, (99) Word has length 702 [2021-11-25 18:07:22,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:23,043 INFO L225 Difference]: With dead ends: 110484 [2021-11-25 18:07:23,043 INFO L226 Difference]: Without dead ends: 59618 [2021-11-25 18:07:23,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:07:23,339 INFO L933 BasicCegarLoop]: 5429 mSDtfsCounter, 2608 mSDsluCounter, 15926 mSDsCounter, 0 mSdLazyCounter, 2929 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2608 SdHoareTripleChecker+Valid, 19379 SdHoareTripleChecker+Invalid, 2938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2929 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:23,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2608 Valid, 19379 Invalid, 2938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2929 Invalid, 3 Unknown, 0 Unchecked, 35.0s Time] [2021-11-25 18:07:23,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59618 states. [2021-11-25 18:07:27,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59618 to 59590. [2021-11-25 18:07:27,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59590 states, 34589 states have (on average 1.2070311370666975) internal successors, (41750), 35331 states have internal predecessors, (41750), 21159 states have call successors, (21159), 3828 states have call predecessors, (21159), 3840 states have return successors, (21201), 20897 states have call predecessors, (21201), 21159 states have call successors, (21201) [2021-11-25 18:07:27,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59590 states to 59590 states and 84110 transitions. [2021-11-25 18:07:27,652 INFO L78 Accepts]: Start accepts. Automaton has 59590 states and 84110 transitions. Word has length 702 [2021-11-25 18:07:27,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:27,657 INFO L470 AbstractCegarLoop]: Abstraction has 59590 states and 84110 transitions. [2021-11-25 18:07:27,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.4) internal successors, (272), 4 states have internal predecessors, (272), 3 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 4 states have call predecessors, (99), 3 states have call successors, (99) [2021-11-25 18:07:27,658 INFO L276 IsEmpty]: Start isEmpty. Operand 59590 states and 84110 transitions. [2021-11-25 18:07:27,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2021-11-25 18:07:27,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:27,697 INFO L514 BasicCegarLoop]: trace histogram [32, 18, 18, 18, 18, 18, 18, 17, 17, 8, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:27,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 18:07:27,698 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:07:27,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:27,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1469020531, now seen corresponding path program 1 times [2021-11-25 18:07:27,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:27,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727901679] [2021-11-25 18:07:27,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:27,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:29,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2457 trivial. 0 not checked. [2021-11-25 18:07:29,305 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:29,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727901679] [2021-11-25 18:07:29,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727901679] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:29,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:29,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:07:29,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734916883] [2021-11-25 18:07:29,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:29,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:07:29,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:29,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:07:29,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:07:29,309 INFO L87 Difference]: Start difference. First operand 59590 states and 84110 transitions. Second operand has 5 states, 5 states have (on average 54.6) internal successors, (273), 4 states have internal predecessors, (273), 3 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 4 states have call predecessors, (99), 3 states have call successors, (99) [2021-11-25 18:07:42,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:49,124 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:51,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:53,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:06,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:08,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:10,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:08:10,840 INFO L93 Difference]: Finished difference Result 126978 states and 179114 transitions. [2021-11-25 18:08:10,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:08:10,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.6) internal successors, (273), 4 states have internal predecessors, (273), 3 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 4 states have call predecessors, (99), 3 states have call successors, (99) Word has length 703 [2021-11-25 18:08:10,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:08:11,095 INFO L225 Difference]: With dead ends: 126978 [2021-11-25 18:08:11,095 INFO L226 Difference]: Without dead ends: 67421 [2021-11-25 18:08:11,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:08:11,230 INFO L933 BasicCegarLoop]: 5432 mSDtfsCounter, 2572 mSDsluCounter, 15969 mSDsCounter, 0 mSdLazyCounter, 2934 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2572 SdHoareTripleChecker+Valid, 19421 SdHoareTripleChecker+Invalid, 2945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2934 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:08:11,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2572 Valid, 19421 Invalid, 2945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2934 Invalid, 4 Unknown, 0 Unchecked, 37.9s Time] [2021-11-25 18:08:11,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67421 states. [2021-11-25 18:08:15,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67421 to 67393. [2021-11-25 18:08:15,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67393 states, 39116 states have (on average 1.2047755394212087) internal successors, (47126), 39960 states have internal predecessors, (47126), 23892 states have call successors, (23892), 4365 states have call predecessors, (23892), 4383 states have return successors, (23946), 23597 states have call predecessors, (23946), 23892 states have call successors, (23946) [2021-11-25 18:08:15,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67393 states to 67393 states and 94964 transitions. [2021-11-25 18:08:15,998 INFO L78 Accepts]: Start accepts. Automaton has 67393 states and 94964 transitions. Word has length 703 [2021-11-25 18:08:15,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:08:15,999 INFO L470 AbstractCegarLoop]: Abstraction has 67393 states and 94964 transitions. [2021-11-25 18:08:15,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.6) internal successors, (273), 4 states have internal predecessors, (273), 3 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 4 states have call predecessors, (99), 3 states have call successors, (99) [2021-11-25 18:08:15,999 INFO L276 IsEmpty]: Start isEmpty. Operand 67393 states and 94964 transitions. [2021-11-25 18:08:16,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2021-11-25 18:08:16,389 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:08:16,390 INFO L514 BasicCegarLoop]: trace histogram [32, 18, 18, 18, 18, 18, 18, 17, 17, 8, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:08:16,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 18:08:16,391 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:08:16,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:08:16,391 INFO L85 PathProgramCache]: Analyzing trace with hash 568644513, now seen corresponding path program 1 times [2021-11-25 18:08:16,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:08:16,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366373483] [2021-11-25 18:08:16,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:08:16,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:08:17,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:08:18,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2457 trivial. 0 not checked. [2021-11-25 18:08:18,088 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:08:18,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366373483] [2021-11-25 18:08:18,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366373483] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:08:18,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:08:18,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:08:18,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257914827] [2021-11-25 18:08:18,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:08:18,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:08:18,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:08:18,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:08:18,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:08:18,092 INFO L87 Difference]: Start difference. First operand 67393 states and 94964 transitions. Second operand has 5 states, 5 states have (on average 54.8) internal successors, (274), 4 states have internal predecessors, (274), 3 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 4 states have call predecessors, (99), 3 states have call successors, (99) [2021-11-25 18:08:24,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:32,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:38,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:40,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:42,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:44,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:58,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:00,588 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:02,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:09:02,682 INFO L93 Difference]: Finished difference Result 142620 states and 200870 transitions. [2021-11-25 18:09:02,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:09:02,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.8) internal successors, (274), 4 states have internal predecessors, (274), 3 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 4 states have call predecessors, (99), 3 states have call successors, (99) Word has length 704 [2021-11-25 18:09:02,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:09:02,941 INFO L225 Difference]: With dead ends: 142620 [2021-11-25 18:09:02,941 INFO L226 Difference]: Without dead ends: 75260 [2021-11-25 18:09:03,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:09:03,290 INFO L933 BasicCegarLoop]: 5431 mSDtfsCounter, 2583 mSDsluCounter, 15958 mSDsCounter, 0 mSdLazyCounter, 2938 mSolverCounterSat, 8 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2583 SdHoareTripleChecker+Valid, 19409 SdHoareTripleChecker+Invalid, 2950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2938 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:09:03,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2583 Valid, 19409 Invalid, 2950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2938 Invalid, 4 Unknown, 0 Unchecked, 40.6s Time] [2021-11-25 18:09:03,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75260 states. [2021-11-25 18:09:08,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75260 to 75232. [2021-11-25 18:09:08,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75232 states, 43664 states have (on average 1.2028902528398682) internal successors, (52523), 44610 states have internal predecessors, (52523), 26634 states have call successors, (26634), 4908 states have call predecessors, (26634), 4932 states have return successors, (26700), 26306 states have call predecessors, (26700), 26634 states have call successors, (26700) [2021-11-25 18:09:08,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75232 states to 75232 states and 105857 transitions. [2021-11-25 18:09:08,633 INFO L78 Accepts]: Start accepts. Automaton has 75232 states and 105857 transitions. Word has length 704 [2021-11-25 18:09:08,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:09:08,634 INFO L470 AbstractCegarLoop]: Abstraction has 75232 states and 105857 transitions. [2021-11-25 18:09:08,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.8) internal successors, (274), 4 states have internal predecessors, (274), 3 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 4 states have call predecessors, (99), 3 states have call successors, (99) [2021-11-25 18:09:08,634 INFO L276 IsEmpty]: Start isEmpty. Operand 75232 states and 105857 transitions. [2021-11-25 18:09:08,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2021-11-25 18:09:08,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:09:08,666 INFO L514 BasicCegarLoop]: trace histogram [32, 18, 18, 18, 18, 18, 18, 17, 17, 8, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:09:08,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 18:09:08,666 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:09:08,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:09:08,666 INFO L85 PathProgramCache]: Analyzing trace with hash 215698781, now seen corresponding path program 1 times [2021-11-25 18:09:08,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:09:08,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991687643] [2021-11-25 18:09:08,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:09:08,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:09:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:09:10,143 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2457 trivial. 0 not checked. [2021-11-25 18:09:10,143 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:09:10,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991687643] [2021-11-25 18:09:10,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991687643] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:09:10,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:09:10,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:09:10,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373014335] [2021-11-25 18:09:10,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:09:10,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:09:10,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:09:10,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:09:10,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:09:10,147 INFO L87 Difference]: Start difference. First operand 75232 states and 105857 transitions. Second operand has 5 states, 5 states have (on average 55.0) internal successors, (275), 4 states have internal predecessors, (275), 3 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 4 states have call predecessors, (99), 3 states have call successors, (99) [2021-11-25 18:09:15,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:30,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:32,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:33,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:40,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:42,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:50,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:54,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:09:54,175 INFO L93 Difference]: Finished difference Result 158268 states and 222638 transitions. [2021-11-25 18:09:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:09:54,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.0) internal successors, (275), 4 states have internal predecessors, (275), 3 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 4 states have call predecessors, (99), 3 states have call successors, (99) Word has length 705 [2021-11-25 18:09:54,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:09:54,488 INFO L225 Difference]: With dead ends: 158268 [2021-11-25 18:09:54,488 INFO L226 Difference]: Without dead ends: 83069 [2021-11-25 18:09:54,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:09:54,872 INFO L933 BasicCegarLoop]: 5432 mSDtfsCounter, 2569 mSDsluCounter, 15971 mSDsCounter, 0 mSdLazyCounter, 2940 mSolverCounterSat, 8 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2569 SdHoareTripleChecker+Valid, 19423 SdHoareTripleChecker+Invalid, 2953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2940 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:09:54,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2569 Valid, 19423 Invalid, 2953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2940 Invalid, 5 Unknown, 0 Unchecked, 39.7s Time] [2021-11-25 18:09:54,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83069 states. [2021-11-25 18:10:00,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83069 to 83041. [2021-11-25 18:10:00,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83041 states, 48203 states have (on average 1.2013982532207539) internal successors, (57911), 49251 states have internal predecessors, (57911), 29367 states have call successors, (29367), 5439 states have call predecessors, (29367), 5469 states have return successors, (29445), 29006 states have call predecessors, (29445), 29367 states have call successors, (29445) [2021-11-25 18:10:00,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83041 states to 83041 states and 116723 transitions. [2021-11-25 18:10:00,969 INFO L78 Accepts]: Start accepts. Automaton has 83041 states and 116723 transitions. Word has length 705 [2021-11-25 18:10:00,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:10:00,970 INFO L470 AbstractCegarLoop]: Abstraction has 83041 states and 116723 transitions. [2021-11-25 18:10:00,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.0) internal successors, (275), 4 states have internal predecessors, (275), 3 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 4 states have call predecessors, (99), 3 states have call successors, (99) [2021-11-25 18:10:00,970 INFO L276 IsEmpty]: Start isEmpty. Operand 83041 states and 116723 transitions. [2021-11-25 18:10:01,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2021-11-25 18:10:01,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:10:01,004 INFO L514 BasicCegarLoop]: trace histogram [32, 18, 18, 18, 18, 18, 18, 17, 17, 8, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:10:01,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 18:10:01,004 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:10:01,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:10:01,005 INFO L85 PathProgramCache]: Analyzing trace with hash -594026529, now seen corresponding path program 1 times [2021-11-25 18:10:01,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:10:01,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235213791] [2021-11-25 18:10:01,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:10:01,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:10:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:10:02,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2457 trivial. 0 not checked. [2021-11-25 18:10:02,338 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:10:02,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235213791] [2021-11-25 18:10:02,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235213791] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:10:02,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:10:02,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:10:02,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088268765] [2021-11-25 18:10:02,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:10:02,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:10:02,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:10:02,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:10:02,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:10:02,341 INFO L87 Difference]: Start difference. First operand 83041 states and 116723 transitions. Second operand has 5 states, 5 states have (on average 55.2) internal successors, (276), 4 states have internal predecessors, (276), 3 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 4 states have call predecessors, (99), 3 states have call successors, (99) [2021-11-25 18:10:08,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:10:15,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:10:16,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []