./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:42:32,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:42:32,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:42:32,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:42:32,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:42:32,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:42:32,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:42:32,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:42:32,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:42:32,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:42:32,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:42:32,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:42:32,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:42:32,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:42:32,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:42:32,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:42:32,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:42:32,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:42:32,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:42:32,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:42:32,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:42:32,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:42:32,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:42:32,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:42:32,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:42:32,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:42:32,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:42:32,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:42:32,960 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:42:32,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:42:32,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:42:32,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:42:32,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:42:32,974 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:42:32,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:42:32,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:42:32,977 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:42:32,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:42:32,978 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:42:32,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:42:32,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:42:32,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:42:33,025 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:42:33,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:42:33,027 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:42:33,027 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:42:33,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:42:33,028 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:42:33,028 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:42:33,029 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:42:33,029 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:42:33,029 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:42:33,030 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:42:33,030 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:42:33,031 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:42:33,031 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:42:33,031 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:42:33,031 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:42:33,032 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:42:33,032 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:42:33,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:42:33,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:42:33,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:42:33,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:42:33,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:42:33,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:42:33,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:42:33,034 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:42:33,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:42:33,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:42:33,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:42:33,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:42:33,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:42:33,036 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:42:33,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:42:33,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:42:33,036 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:42:33,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:42:33,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:42:33,037 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:42:33,037 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 [2022-11-23 15:42:33,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:42:33,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:42:33,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:42:33,392 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:42:33,393 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:42:33,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2022-11-23 15:42:36,346 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:42:37,017 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:42:37,018 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2022-11-23 15:42:37,090 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/bin/utaipan-Q6hlc19bkW/data/f0d2741e9/dff819f8eeb24c958a8a649adc1eddba/FLAGa8f4f950b [2022-11-23 15:42:37,111 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/bin/utaipan-Q6hlc19bkW/data/f0d2741e9/dff819f8eeb24c958a8a649adc1eddba [2022-11-23 15:42:37,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:42:37,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:42:37,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:42:37,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:42:37,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:42:37,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:42:37" (1/1) ... [2022-11-23 15:42:37,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e50efeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:37, skipping insertion in model container [2022-11-23 15:42:37,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:42:37" (1/1) ... [2022-11-23 15:42:37,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:42:37,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:42:41,118 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402539,402552] [2022-11-23 15:42:41,124 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402684,402697] [2022-11-23 15:42:41,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:42:41,175 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:42:41,650 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402539,402552] [2022-11-23 15:42:41,651 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402684,402697] [2022-11-23 15:42:41,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:42:41,891 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:42:41,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:41 WrapperNode [2022-11-23 15:42:41,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:42:41,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:42:41,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:42:41,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:42:41,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:41" (1/1) ... [2022-11-23 15:42:42,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:41" (1/1) ... [2022-11-23 15:42:42,352 INFO L138 Inliner]: procedures = 551, calls = 3920, calls flagged for inlining = 270, calls inlined = 246, statements flattened = 9260 [2022-11-23 15:42:42,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:42:42,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:42:42,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:42:42,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:42:42,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:41" (1/1) ... [2022-11-23 15:42:42,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:41" (1/1) ... [2022-11-23 15:42:42,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:41" (1/1) ... [2022-11-23 15:42:42,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:41" (1/1) ... [2022-11-23 15:42:42,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:41" (1/1) ... [2022-11-23 15:42:42,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:41" (1/1) ... [2022-11-23 15:42:42,769 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:41" (1/1) ... [2022-11-23 15:42:42,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:41" (1/1) ... [2022-11-23 15:42:42,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:42:42,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:42:42,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:42:42,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:42:42,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:41" (1/1) ... [2022-11-23 15:42:42,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:42:42,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:42:42,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:42:42,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75209ed8-08d5-47d6-8bb9-961b97a8e262/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:42:42,949 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_evict_inode [2022-11-23 15:42:42,949 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_evict_inode [2022-11-23 15:42:42,949 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2022-11-23 15:42:42,950 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2022-11-23 15:42:42,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 15:42:42,950 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 15:42:42,950 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_unlink [2022-11-23 15:42:42,950 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_unlink [2022-11-23 15:42:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_get_inode [2022-11-23 15:42:42,951 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_get_inode [2022-11-23 15:42:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-23 15:42:42,951 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-23 15:42:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:42:42,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:42:42,952 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_lseek [2022-11-23 15:42:42,952 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_lseek [2022-11-23 15:42:42,952 INFO L130 BoogieDeclarations]: Found specification of procedure do_expire_wait [2022-11-23 15:42:42,952 INFO L138 BoogieDeclarations]: Found implementation of procedure do_expire_wait [2022-11-23 15:42:42,952 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-23 15:42:42,952 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-23 15:42:42,953 INFO L130 BoogieDeclarations]: Found specification of procedure dget [2022-11-23 15:42:42,953 INFO L138 BoogieDeclarations]: Found implementation of procedure dget [2022-11-23 15:42:42,954 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2022-11-23 15:42:42,954 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2022-11-23 15:42:42,955 INFO L130 BoogieDeclarations]: Found specification of procedure current_kernel_time [2022-11-23 15:42:42,955 INFO L138 BoogieDeclarations]: Found implementation of procedure current_kernel_time [2022-11-23 15:42:42,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2022-11-23 15:42:42,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2022-11-23 15:42:42,956 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_indirect [2022-11-23 15:42:42,956 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_indirect [2022-11-23 15:42:42,956 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2022-11-23 15:42:42,956 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2022-11-23 15:42:42,957 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_clear_managed [2022-11-23 15:42:42,957 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_clear_managed [2022-11-23 15:42:42,957 INFO L130 BoogieDeclarations]: Found specification of procedure from_kgid_munged [2022-11-23 15:42:42,957 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kgid_munged [2022-11-23 15:42:42,958 INFO L130 BoogieDeclarations]: Found specification of procedure follow_down_one [2022-11-23 15:42:42,958 INFO L138 BoogieDeclarations]: Found implementation of procedure follow_down_one [2022-11-23 15:42:42,958 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_show_options [2022-11-23 15:42:42,958 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_show_options [2022-11-23 15:42:42,958 INFO L130 BoogieDeclarations]: Found specification of procedure __autofs4_add_expiring [2022-11-23 15:42:42,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __autofs4_add_expiring [2022-11-23 15:42:42,959 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 15:42:42,959 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_wait [2022-11-23 15:42:42,959 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_wait [2022-11-23 15:42:42,959 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl [2022-11-23 15:42:42,959 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl [2022-11-23 15:42:42,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 15:42:42,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 15:42:42,961 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-23 15:42:42,961 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-23 15:42:42,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 15:42:42,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 15:42:42,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:42:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure d_count [2022-11-23 15:42:42,962 INFO L138 BoogieDeclarations]: Found implementation of procedure d_count [2022-11-23 15:42:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-23 15:42:42,962 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-23 15:42:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_63 [2022-11-23 15:42:42,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_63 [2022-11-23 15:42:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2022-11-23 15:42:42,963 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2022-11-23 15:42:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-23 15:42:42,963 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-23 15:42:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 15:42:42,963 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 15:42:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-11-23 15:42:42,964 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-11-23 15:42:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_oz_mode [2022-11-23 15:42:42,964 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_oz_mode [2022-11-23 15:42:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_do_expire_multi [2022-11-23 15:42:42,964 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_do_expire_multi [2022-11-23 15:42:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2022-11-23 15:42:42,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2022-11-23 15:42:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure __task_pid_nr_ns [2022-11-23 15:42:42,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __task_pid_nr_ns [2022-11-23 15:42:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_57 [2022-11-23 15:42:42,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_57 [2022-11-23 15:42:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-23 15:42:42,968 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-23 15:42:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_sbi [2022-11-23 15:42:42,969 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_sbi [2022-11-23 15:42:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 15:42:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-23 15:42:42,969 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-23 15:42:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_siglock_of_sighand_struct [2022-11-23 15:42:42,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_siglock_of_sighand_struct [2022-11-23 15:42:42,970 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_new_ino [2022-11-23 15:42:42,970 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_new_ino [2022-11-23 15:42:42,970 INFO L130 BoogieDeclarations]: Found specification of procedure simple_empty [2022-11-23 15:42:42,971 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_empty [2022-11-23 15:42:42,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:42:42,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 15:42:42,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 15:42:42,972 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_can_expire [2022-11-23 15:42:42,972 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_can_expire [2022-11-23 15:42:42,972 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_ino [2022-11-23 15:42:42,973 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_ino [2022-11-23 15:42:42,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:42:42,973 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2022-11-23 15:42:42,973 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2022-11-23 15:42:42,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-23 15:42:42,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-23 15:42:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_open [2022-11-23 15:42:42,974 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_open [2022-11-23 15:42:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 15:42:42,974 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 15:42:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_rmdir [2022-11-23 15:42:42,977 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_rmdir [2022-11-23 15:42:42,980 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount [2022-11-23 15:42:42,981 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount [2022-11-23 15:42:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl_exit [2022-11-23 15:42:42,982 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl_exit [2022-11-23 15:42:42,982 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-23 15:42:42,983 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-23 15:42:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 15:42:42,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 15:42:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 15:42:42,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 15:42:42,990 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_open [2022-11-23 15:42:42,990 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_open [2022-11-23 15:42:42,990 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-23 15:42:42,990 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-23 15:42:42,990 INFO L130 BoogieDeclarations]: Found specification of procedure clear_nlink [2022-11-23 15:42:42,990 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_nlink [2022-11-23 15:42:42,991 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_trigger [2022-11-23 15:42:42,991 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_trigger [2022-11-23 15:42:42,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:42:42,991 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-23 15:42:42,991 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-23 15:42:42,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-23 15:42:42,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-23 15:42:42,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-23 15:42:42,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-23 15:42:42,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-23 15:42:42,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-23 15:42:42,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-23 15:42:42,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-23 15:42:42,993 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2022-11-23 15:42:42,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-23 15:42:42,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-23 15:42:42,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:42:42,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 15:42:42,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 15:42:42,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:42:42,994 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 15:42:42,994 INFO L130 BoogieDeclarations]: Found specification of procedure simple_positive [2022-11-23 15:42:42,994 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_positive [2022-11-23 15:42:42,994 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-23 15:42:42,995 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-23 15:42:42,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-23 15:42:42,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-23 15:42:42,995 INFO L130 BoogieDeclarations]: Found specification of procedure path_get [2022-11-23 15:42:42,995 INFO L138 BoogieDeclarations]: Found implementation of procedure path_get [2022-11-23 15:42:42,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-23 15:42:42,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-23 15:42:42,996 INFO L130 BoogieDeclarations]: Found specification of procedure dget_dlock [2022-11-23 15:42:42,996 INFO L138 BoogieDeclarations]: Found implementation of procedure dget_dlock [2022-11-23 15:42:42,996 INFO L130 BoogieDeclarations]: Found specification of procedure d_lookup [2022-11-23 15:42:42,996 INFO L138 BoogieDeclarations]: Found implementation of procedure d_lookup [2022-11-23 15:42:42,996 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-23 15:42:42,997 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-23 15:42:42,997 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-23 15:42:42,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-23 15:42:42,997 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2022-11-23 15:42:42,998 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2022-11-23 15:42:42,998 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-23 15:42:42,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-23 15:42:42,998 INFO L130 BoogieDeclarations]: Found specification of procedure d_drop [2022-11-23 15:42:42,998 INFO L138 BoogieDeclarations]: Found implementation of procedure d_drop [2022-11-23 15:42:42,998 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_mount [2022-11-23 15:42:42,999 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_mount [2022-11-23 15:42:42,999 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_indirect [2022-11-23 15:42:42,999 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_indirect [2022-11-23 15:42:42,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:42:42,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:42:42,999 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_wait [2022-11-23 15:42:43,000 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_wait [2022-11-23 15:42:43,000 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-23 15:42:43,000 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-23 15:42:43,000 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl [2022-11-23 15:42:43,000 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl [2022-11-23 15:42:43,001 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-23 15:42:43,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-23 15:42:43,001 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2022-11-23 15:42:43,001 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2022-11-23 15:42:43,001 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-11-23 15:42:43,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-11-23 15:42:43,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 15:42:43,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 15:42:43,002 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait_release [2022-11-23 15:42:43,002 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait_release [2022-11-23 15:42:43,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:42:43,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:42:43,003 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl_unlocked [2022-11-23 15:42:43,003 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl_unlocked [2022-11-23 15:42:43,003 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-23 15:42:43,003 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-23 15:42:43,003 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-23 15:42:43,003 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-23 15:42:43,004 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_compat_ioctl [2022-11-23 15:42:43,004 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_compat_ioctl [2022-11-23 15:42:43,004 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqretry [2022-11-23 15:42:43,004 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqretry [2022-11-23 15:42:43,004 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-23 15:42:43,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-23 15:42:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-23 15:42:43,005 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-23 15:42:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_readdir [2022-11-23 15:42:43,005 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_readdir [2022-11-23 15:42:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2022-11-23 15:42:43,005 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2022-11-23 15:42:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 15:42:43,006 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 15:42:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount_tree [2022-11-23 15:42:43,006 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount_tree [2022-11-23 15:42:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-23 15:42:43,006 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-23 15:42:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure simple_statfs [2022-11-23 15:42:43,007 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_statfs [2022-11-23 15:42:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:42:43,007 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:42:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure get_task_pid [2022-11-23 15:42:43,007 INFO L138 BoogieDeclarations]: Found implementation of procedure get_task_pid [2022-11-23 15:42:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2022-11-23 15:42:43,008 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2022-11-23 15:42:43,008 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_busy [2022-11-23 15:42:43,008 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_busy [2022-11-23 15:42:43,008 INFO L130 BoogieDeclarations]: Found specification of procedure d_unhashed [2022-11-23 15:42:43,008 INFO L138 BoogieDeclarations]: Found implementation of procedure d_unhashed [2022-11-23 15:42:43,008 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-23 15:42:43,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-23 15:42:43,009 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_kill_sb [2022-11-23 15:42:43,009 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_kill_sb [2022-11-23 15:42:43,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:42:43,010 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 15:42:43,011 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 15:42:43,011 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2022-11-23 15:42:43,011 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2022-11-23 15:42:43,011 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-23 15:42:43,011 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-23 15:42:43,011 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_set_managed [2022-11-23 15:42:43,012 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_set_managed [2022-11-23 15:42:43,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:42:43,012 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-23 15:42:43,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-23 15:42:43,012 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-11-23 15:42:43,012 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-11-23 15:42:43,013 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-23 15:42:43,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-23 15:42:43,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:42:43,013 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-23 15:42:43,013 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-23 15:42:43,013 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-23 15:42:43,014 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-23 15:42:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure find_autofs_mount [2022-11-23 15:42:43,014 INFO L138 BoogieDeclarations]: Found implementation of procedure find_autofs_mount [2022-11-23 15:42:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-23 15:42:43,014 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-23 15:42:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 15:42:43,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 15:42:43,015 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_close [2022-11-23 15:42:43,015 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_close [2022-11-23 15:42:43,015 INFO L130 BoogieDeclarations]: Found specification of procedure ns_of_pid [2022-11-23 15:42:43,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_of_pid [2022-11-23 15:42:43,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 15:42:43,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 15:42:43,016 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-23 15:42:43,016 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-23 15:42:43,016 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_clean_ino [2022-11-23 15:42:43,016 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_clean_ino [2022-11-23 15:42:43,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_86 [2022-11-23 15:42:43,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_86 [2022-11-23 15:42:43,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_64 [2022-11-23 15:42:43,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_64 [2022-11-23 15:42:43,017 INFO L130 BoogieDeclarations]: Found specification of procedure kern_path_mountpoint [2022-11-23 15:42:43,017 INFO L138 BoogieDeclarations]: Found implementation of procedure kern_path_mountpoint [2022-11-23 15:42:43,017 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_positive_dentry [2022-11-23 15:42:43,017 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_positive_dentry [2022-11-23 15:42:43,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_58 [2022-11-23 15:42:43,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_58 [2022-11-23 15:42:43,018 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 15:42:43,018 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 15:42:43,018 INFO L130 BoogieDeclarations]: Found specification of procedure __managed_dentry_set_managed [2022-11-23 15:42:43,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __managed_dentry_set_managed [2022-11-23 15:42:43,019 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait [2022-11-23 15:42:43,019 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait [2022-11-23 15:42:43,019 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_find_wait [2022-11-23 15:42:43,019 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_find_wait [2022-11-23 15:42:43,019 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-23 15:42:43,019 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-23 15:42:43,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2022-11-23 15:42:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2022-11-23 15:42:43,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:42:43,020 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_release [2022-11-23 15:42:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_release [2022-11-23 15:42:43,020 INFO L130 BoogieDeclarations]: Found specification of procedure task_pgrp_nr [2022-11-23 15:42:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pgrp_nr [2022-11-23 15:42:43,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:42:43,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:42:43,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_87 [2022-11-23 15:42:43,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_87 [2022-11-23 15:42:43,021 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2022-11-23 15:42:43,021 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2022-11-23 15:42:43,021 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_symlink [2022-11-23 15:42:43,022 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_symlink [2022-11-23 15:42:43,022 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-11-23 15:42:43,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-11-23 15:42:43,022 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2022-11-23 15:42:43,022 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2022-11-23 15:42:43,022 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-23 15:42:43,022 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-23 15:42:43,023 INFO L130 BoogieDeclarations]: Found specification of procedure d_mountpoint [2022-11-23 15:42:43,023 INFO L138 BoogieDeclarations]: Found implementation of procedure d_mountpoint [2022-11-23 15:42:43,023 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-23 15:42:43,023 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-23 15:42:43,023 INFO L130 BoogieDeclarations]: Found specification of procedure have_submounts [2022-11-23 15:42:43,023 INFO L138 BoogieDeclarations]: Found implementation of procedure have_submounts [2022-11-23 15:42:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-23 15:42:43,024 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-23 15:42:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-23 15:42:43,024 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-23 15:42:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-23 15:42:43,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-23 15:42:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-23 15:42:43,025 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-23 15:42:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_prepare_pipe [2022-11-23 15:42:43,025 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_prepare_pipe [2022-11-23 15:42:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 15:42:43,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 15:42:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_del_active [2022-11-23 15:42:43,026 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_del_active [2022-11-23 15:42:43,026 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-23 15:42:43,026 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-23 15:42:43,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 15:42:43,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 15:42:43,026 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-23 15:42:43,026 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-23 15:42:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:42:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure d_add [2022-11-23 15:42:43,027 INFO L138 BoogieDeclarations]: Found implementation of procedure d_add [2022-11-23 15:42:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_catatonic_mode [2022-11-23 15:42:43,027 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_catatonic_mode [2022-11-23 15:42:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2022-11-23 15:42:43,028 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2022-11-23 15:42:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 15:42:43,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 15:42:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-23 15:42:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-23 15:42:43,028 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-23 15:42:44,284 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:42:44,288 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:42:44,622 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:42:45,567 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call ULTIMATE.dealloc(~#descriptor~12#1.base, ~#descriptor~12#1.offset);havoc ~#descriptor~12#1.base, ~#descriptor~12#1.offset; [2022-11-23 15:42:54,051 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-23 15:42:54,359 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:42:56,437 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:42:56,437 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-23 15:42:56,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:42:56 BoogieIcfgContainer [2022-11-23 15:42:56,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:42:56,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:42:56,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:42:56,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:42:56,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:42:37" (1/3) ... [2022-11-23 15:42:56,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1b6c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:42:56, skipping insertion in model container [2022-11-23 15:42:56,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:41" (2/3) ... [2022-11-23 15:42:56,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1b6c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:42:56, skipping insertion in model container [2022-11-23 15:42:56,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:42:56" (3/3) ... [2022-11-23 15:42:56,461 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2022-11-23 15:42:56,483 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:42:56,484 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:42:56,616 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:42:56,625 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b80d106, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:42:56,626 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:42:56,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 2631 states, 1544 states have (on average 1.3128238341968912) internal successors, (2027), 1594 states have internal predecessors, (2027), 922 states have call successors, (922), 165 states have call predecessors, (922), 164 states have return successors, (911), 905 states have call predecessors, (911), 911 states have call successors, (911) [2022-11-23 15:42:56,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2022-11-23 15:42:56,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:42:56,733 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 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] [2022-11-23 15:42:56,733 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:42:56,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:42:56,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1545088998, now seen corresponding path program 1 times [2022-11-23 15:42:56,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:42:56,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901486891] [2022-11-23 15:42:56,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:42:56,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:42:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:42:58,256 INFO L134 CoverageAnalysis]: Checked inductivity of 7665 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7665 trivial. 0 not checked. [2022-11-23 15:42:58,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:42:58,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901486891] [2022-11-23 15:42:58,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901486891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:42:58,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:42:58,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:42:58,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616411266] [2022-11-23 15:42:58,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:42:58,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:42:58,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:42:58,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:42:58,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:42:58,325 INFO L87 Difference]: Start difference. First operand has 2631 states, 1544 states have (on average 1.3128238341968912) internal successors, (2027), 1594 states have internal predecessors, (2027), 922 states have call successors, (922), 165 states have call predecessors, (922), 164 states have return successors, (911), 905 states have call predecessors, (911), 911 states have call successors, (911) Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-23 15:43:00,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:43:04,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:43:04,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:43:04,841 INFO L93 Difference]: Finished difference Result 7224 states and 10638 transitions. [2022-11-23 15:43:04,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:43:04,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) Word has length 531 [2022-11-23 15:43:04,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:43:04,891 INFO L225 Difference]: With dead ends: 7224 [2022-11-23 15:43:04,891 INFO L226 Difference]: Without dead ends: 4619 [2022-11-23 15:43:04,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:43:04,913 INFO L413 NwaCegarLoop]: 5041 mSDtfsCounter, 2987 mSDsluCounter, 3430 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2989 SdHoareTripleChecker+Valid, 8471 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:43:04,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2989 Valid, 8471 Invalid, 933 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 924 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-11-23 15:43:04,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4619 states. [2022-11-23 15:43:05,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4619 to 4615. [2022-11-23 15:43:05,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4615 states, 2730 states have (on average 1.3054945054945055) internal successors, (3564), 2810 states have internal predecessors, (3564), 1577 states have call successors, (1577), 307 states have call predecessors, (1577), 307 states have return successors, (1579), 1564 states have call predecessors, (1579), 1577 states have call successors, (1579) [2022-11-23 15:43:05,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4615 states to 4615 states and 6720 transitions. [2022-11-23 15:43:05,265 INFO L78 Accepts]: Start accepts. Automaton has 4615 states and 6720 transitions. Word has length 531 [2022-11-23 15:43:05,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:43:05,267 INFO L495 AbstractCegarLoop]: Abstraction has 4615 states and 6720 transitions. [2022-11-23 15:43:05,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-23 15:43:05,268 INFO L276 IsEmpty]: Start isEmpty. Operand 4615 states and 6720 transitions. [2022-11-23 15:43:05,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-11-23 15:43:05,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:43:05,299 INFO L195 NwaCegarLoop]: trace histogram [46, 44, 44, 44, 44, 44, 44, 3, 3, 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] [2022-11-23 15:43:05,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:43:05,299 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:43:05,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:43:05,300 INFO L85 PathProgramCache]: Analyzing trace with hash 223083729, now seen corresponding path program 1 times [2022-11-23 15:43:05,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:43:05,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984849862] [2022-11-23 15:43:05,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:43:05,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:43:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:43:06,122 INFO L134 CoverageAnalysis]: Checked inductivity of 7764 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7761 trivial. 0 not checked. [2022-11-23 15:43:06,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:43:06,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984849862] [2022-11-23 15:43:06,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984849862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:43:06,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:43:06,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:43:06,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834934391] [2022-11-23 15:43:06,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:43:06,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:43:06,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:43:06,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:43:06,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:43:06,126 INFO L87 Difference]: Start difference. First operand 4615 states and 6720 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2022-11-23 15:43:08,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:43:12,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:43:13,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:43:13,141 INFO L93 Difference]: Finished difference Result 11131 states and 16176 transitions. [2022-11-23 15:43:13,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:43:13,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) Word has length 549 [2022-11-23 15:43:13,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:43:13,200 INFO L225 Difference]: With dead ends: 11131 [2022-11-23 15:43:13,200 INFO L226 Difference]: Without dead ends: 6605 [2022-11-23 15:43:13,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:43:13,226 INFO L413 NwaCegarLoop]: 4912 mSDtfsCounter, 2897 mSDsluCounter, 3326 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2899 SdHoareTripleChecker+Valid, 8238 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:43:13,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2899 Valid, 8238 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 914 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-11-23 15:43:13,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6605 states. [2022-11-23 15:43:13,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6605 to 6603. [2022-11-23 15:43:13,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6603 states, 3904 states have (on average 1.3037909836065573) internal successors, (5090), 4014 states have internal predecessors, (5090), 2243 states have call successors, (2243), 455 states have call predecessors, (2243), 455 states have return successors, (2247), 2225 states have call predecessors, (2247), 2243 states have call successors, (2247) [2022-11-23 15:43:13,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6603 states to 6603 states and 9580 transitions. [2022-11-23 15:43:13,766 INFO L78 Accepts]: Start accepts. Automaton has 6603 states and 9580 transitions. Word has length 549 [2022-11-23 15:43:13,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:43:13,771 INFO L495 AbstractCegarLoop]: Abstraction has 6603 states and 9580 transitions. [2022-11-23 15:43:13,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2022-11-23 15:43:13,773 INFO L276 IsEmpty]: Start isEmpty. Operand 6603 states and 9580 transitions. [2022-11-23 15:43:13,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-11-23 15:43:13,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:43:13,800 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 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] [2022-11-23 15:43:13,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:43:13,800 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:43:13,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:43:13,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1292022495, now seen corresponding path program 1 times [2022-11-23 15:43:13,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:43:13,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117854721] [2022-11-23 15:43:13,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:43:13,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:43:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:43:14,666 INFO L134 CoverageAnalysis]: Checked inductivity of 7660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7660 trivial. 0 not checked. [2022-11-23 15:43:14,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:43:14,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117854721] [2022-11-23 15:43:14,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117854721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:43:14,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:43:14,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:43:14,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394033939] [2022-11-23 15:43:14,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:43:14,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:43:14,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:43:14,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:43:14,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:43:14,673 INFO L87 Difference]: Start difference. First operand 6603 states and 9580 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-23 15:43:16,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:43:20,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:43:21,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:43:21,343 INFO L93 Difference]: Finished difference Result 17197 states and 24908 transitions. [2022-11-23 15:43:21,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:43:21,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 547 [2022-11-23 15:43:21,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:43:21,437 INFO L225 Difference]: With dead ends: 17197 [2022-11-23 15:43:21,437 INFO L226 Difference]: Without dead ends: 10683 [2022-11-23 15:43:21,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:43:21,478 INFO L413 NwaCegarLoop]: 5066 mSDtfsCounter, 3195 mSDsluCounter, 3346 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3199 SdHoareTripleChecker+Valid, 8412 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:43:21,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3199 Valid, 8412 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 952 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-11-23 15:43:21,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10683 states. [2022-11-23 15:43:22,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10683 to 10680. [2022-11-23 15:43:22,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10680 states, 6327 states have (on average 1.3018808281966177) internal successors, (8237), 6511 states have internal predecessors, (8237), 3590 states have call successors, (3590), 762 states have call predecessors, (3590), 762 states have return successors, (3602), 3559 states have call predecessors, (3602), 3590 states have call successors, (3602) [2022-11-23 15:43:22,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10680 states to 10680 states and 15429 transitions. [2022-11-23 15:43:22,226 INFO L78 Accepts]: Start accepts. Automaton has 10680 states and 15429 transitions. Word has length 547 [2022-11-23 15:43:22,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:43:22,228 INFO L495 AbstractCegarLoop]: Abstraction has 10680 states and 15429 transitions. [2022-11-23 15:43:22,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-23 15:43:22,228 INFO L276 IsEmpty]: Start isEmpty. Operand 10680 states and 15429 transitions. [2022-11-23 15:43:22,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2022-11-23 15:43:22,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:43:22,258 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 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] [2022-11-23 15:43:22,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:43:22,258 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:43:22,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:43:22,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1487481446, now seen corresponding path program 1 times [2022-11-23 15:43:22,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:43:22,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601480025] [2022-11-23 15:43:22,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:43:22,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:43:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:43:22,877 INFO L134 CoverageAnalysis]: Checked inductivity of 7660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7660 trivial. 0 not checked. [2022-11-23 15:43:22,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:43:22,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601480025] [2022-11-23 15:43:22,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601480025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:43:22,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:43:22,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:43:22,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805693021] [2022-11-23 15:43:22,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:43:22,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:43:22,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:43:22,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:43:22,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:43:22,880 INFO L87 Difference]: Start difference. First operand 10680 states and 15429 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-23 15:43:25,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:43:29,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:43:30,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:43:30,414 INFO L93 Difference]: Finished difference Result 28012 states and 40318 transitions. [2022-11-23 15:43:30,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:43:30,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) Word has length 548 [2022-11-23 15:43:30,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:43:30,527 INFO L225 Difference]: With dead ends: 28012 [2022-11-23 15:43:30,527 INFO L226 Difference]: Without dead ends: 17421 [2022-11-23 15:43:30,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:43:30,576 INFO L413 NwaCegarLoop]: 5081 mSDtfsCounter, 3211 mSDsluCounter, 3350 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3213 SdHoareTripleChecker+Valid, 8431 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:43:30,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3213 Valid, 8431 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 954 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-11-23 15:43:30,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17421 states. [2022-11-23 15:43:31,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17421 to 17411. [2022-11-23 15:43:31,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17411 states, 10362 states have (on average 1.2996525767226403) internal successors, (13467), 10675 states have internal predecessors, (13467), 5734 states have call successors, (5734), 1314 states have call predecessors, (5734), 1314 states have return successors, (5762), 5681 states have call predecessors, (5762), 5734 states have call successors, (5762) [2022-11-23 15:43:31,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17411 states to 17411 states and 24963 transitions. [2022-11-23 15:43:31,652 INFO L78 Accepts]: Start accepts. Automaton has 17411 states and 24963 transitions. Word has length 548 [2022-11-23 15:43:31,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:43:31,653 INFO L495 AbstractCegarLoop]: Abstraction has 17411 states and 24963 transitions. [2022-11-23 15:43:31,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-23 15:43:31,654 INFO L276 IsEmpty]: Start isEmpty. Operand 17411 states and 24963 transitions. [2022-11-23 15:43:31,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2022-11-23 15:43:31,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:43:31,692 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 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] [2022-11-23 15:43:31,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:43:31,692 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:43:31,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:43:31,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1785971495, now seen corresponding path program 1 times [2022-11-23 15:43:31,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:43:31,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59971392] [2022-11-23 15:43:31,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:43:31,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:43:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:43:32,613 INFO L134 CoverageAnalysis]: Checked inductivity of 7660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7660 trivial. 0 not checked. [2022-11-23 15:43:32,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:43:32,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59971392] [2022-11-23 15:43:32,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59971392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:43:32,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:43:32,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:43:32,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430038931] [2022-11-23 15:43:32,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:43:32,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:43:32,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:43:32,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:43:32,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:43:32,617 INFO L87 Difference]: Start difference. First operand 17411 states and 24963 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2022-11-23 15:43:35,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:43:38,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:43:39,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:43:39,608 INFO L93 Difference]: Finished difference Result 47940 states and 68656 transitions. [2022-11-23 15:43:39,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:43:39,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) Word has length 559 [2022-11-23 15:43:39,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:43:39,772 INFO L225 Difference]: With dead ends: 47940 [2022-11-23 15:43:39,772 INFO L226 Difference]: Without dead ends: 30618 [2022-11-23 15:43:39,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:43:39,838 INFO L413 NwaCegarLoop]: 5083 mSDtfsCounter, 3062 mSDsluCounter, 3347 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3064 SdHoareTripleChecker+Valid, 8430 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:43:39,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3064 Valid, 8430 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 961 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-11-23 15:43:39,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30618 states. [2022-11-23 15:43:41,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30618 to 30614. [2022-11-23 15:43:41,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30614 states, 18222 states have (on average 1.295412139172429) internal successors, (23605), 18792 states have internal predecessors, (23605), 10040 states have call successors, (10040), 2353 states have call predecessors, (10040), 2351 states have return successors, (10088), 9935 states have call predecessors, (10088), 10040 states have call successors, (10088) [2022-11-23 15:43:41,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30614 states to 30614 states and 43733 transitions. [2022-11-23 15:43:41,991 INFO L78 Accepts]: Start accepts. Automaton has 30614 states and 43733 transitions. Word has length 559 [2022-11-23 15:43:41,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:43:41,992 INFO L495 AbstractCegarLoop]: Abstraction has 30614 states and 43733 transitions. [2022-11-23 15:43:41,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2022-11-23 15:43:41,992 INFO L276 IsEmpty]: Start isEmpty. Operand 30614 states and 43733 transitions. [2022-11-23 15:43:42,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2022-11-23 15:43:42,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:43:42,026 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 4, 4, 4, 3, 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] [2022-11-23 15:43:42,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:43:42,026 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:43:42,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:43:42,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1230647527, now seen corresponding path program 1 times [2022-11-23 15:43:42,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:43:42,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292213499] [2022-11-23 15:43:42,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:43:42,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:43:42,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:43:42,911 INFO L134 CoverageAnalysis]: Checked inductivity of 7704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7704 trivial. 0 not checked. [2022-11-23 15:43:42,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:43:42,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292213499] [2022-11-23 15:43:42,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292213499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:43:42,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:43:42,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:43:42,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459055581] [2022-11-23 15:43:42,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:43:42,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:43:42,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:43:42,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:43:42,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:43:42,915 INFO L87 Difference]: Start difference. First operand 30614 states and 43733 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2022-11-23 15:43:45,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:43:48,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:43:50,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:43:50,406 INFO L93 Difference]: Finished difference Result 84034 states and 119693 transitions. [2022-11-23 15:43:50,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:43:50,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 598 [2022-11-23 15:43:50,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:43:50,715 INFO L225 Difference]: With dead ends: 84034 [2022-11-23 15:43:50,716 INFO L226 Difference]: Without dead ends: 53509 [2022-11-23 15:43:50,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:43:50,829 INFO L413 NwaCegarLoop]: 4550 mSDtfsCounter, 2965 mSDsluCounter, 3374 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2969 SdHoareTripleChecker+Valid, 7924 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:43:50,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2969 Valid, 7924 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 864 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-11-23 15:43:50,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53509 states. [2022-11-23 15:43:53,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53509 to 53473. [2022-11-23 15:43:53,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53473 states, 31814 states have (on average 1.2916640472747847) internal successors, (41093), 32759 states have internal predecessors, (41093), 17389 states have call successors, (17389), 4273 states have call predecessors, (17389), 4269 states have return successors, (17491), 17206 states have call predecessors, (17491), 17389 states have call successors, (17491) [2022-11-23 15:43:54,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53473 states to 53473 states and 75973 transitions. [2022-11-23 15:43:54,368 INFO L78 Accepts]: Start accepts. Automaton has 53473 states and 75973 transitions. Word has length 598 [2022-11-23 15:43:54,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:43:54,369 INFO L495 AbstractCegarLoop]: Abstraction has 53473 states and 75973 transitions. [2022-11-23 15:43:54,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2022-11-23 15:43:54,370 INFO L276 IsEmpty]: Start isEmpty. Operand 53473 states and 75973 transitions. [2022-11-23 15:43:54,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2022-11-23 15:43:54,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:43:54,456 INFO L195 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 6, 6, 3, 3, 3, 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] [2022-11-23 15:43:54,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:43:54,457 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:43:54,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:43:54,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1027583419, now seen corresponding path program 1 times [2022-11-23 15:43:54,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:43:54,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87940500] [2022-11-23 15:43:54,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:43:54,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:43:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:43:55,400 INFO L134 CoverageAnalysis]: Checked inductivity of 8096 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8089 trivial. 0 not checked. [2022-11-23 15:43:55,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:43:55,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87940500] [2022-11-23 15:43:55,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87940500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:43:55,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:43:55,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:43:55,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052982536] [2022-11-23 15:43:55,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:43:55,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:43:55,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:43:55,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:43:55,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:43:55,404 INFO L87 Difference]: Start difference. First operand 53473 states and 75973 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-11-23 15:43:57,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:44:01,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:44:04,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:44:04,192 INFO L93 Difference]: Finished difference Result 130639 states and 185562 transitions. [2022-11-23 15:44:04,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:44:04,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) Word has length 599 [2022-11-23 15:44:04,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:44:04,928 INFO L225 Difference]: With dead ends: 130639 [2022-11-23 15:44:04,928 INFO L226 Difference]: Without dead ends: 77395 [2022-11-23 15:44:05,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:44:05,183 INFO L413 NwaCegarLoop]: 5944 mSDtfsCounter, 2945 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2947 SdHoareTripleChecker+Valid, 9309 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:44:05,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2947 Valid, 9309 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1121 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-11-23 15:44:05,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77395 states. [2022-11-23 15:44:09,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77395 to 77361. [2022-11-23 15:44:09,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77361 states, 46089 states have (on average 1.2926511749007354) internal successors, (59577), 47424 states have internal predecessors, (59577), 25036 states have call successors, (25036), 6241 states have call predecessors, (25036), 6235 states have return successors, (25176), 24753 states have call predecessors, (25176), 25036 states have call successors, (25176) [2022-11-23 15:44:09,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77361 states to 77361 states and 109789 transitions. [2022-11-23 15:44:09,846 INFO L78 Accepts]: Start accepts. Automaton has 77361 states and 109789 transitions. Word has length 599 [2022-11-23 15:44:09,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:44:09,847 INFO L495 AbstractCegarLoop]: Abstraction has 77361 states and 109789 transitions. [2022-11-23 15:44:09,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-11-23 15:44:09,847 INFO L276 IsEmpty]: Start isEmpty. Operand 77361 states and 109789 transitions. [2022-11-23 15:44:09,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2022-11-23 15:44:09,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:44:09,953 INFO L195 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 4, 4, 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] [2022-11-23 15:44:09,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:44:09,953 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:44:09,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:44:09,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1863905847, now seen corresponding path program 1 times [2022-11-23 15:44:09,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:44:09,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494581229] [2022-11-23 15:44:09,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:44:09,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:44:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:44:10,860 INFO L134 CoverageAnalysis]: Checked inductivity of 8053 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8050 trivial. 0 not checked. [2022-11-23 15:44:10,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:44:10,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494581229] [2022-11-23 15:44:10,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494581229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:44:10,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:44:10,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:44:10,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19118536] [2022-11-23 15:44:10,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:44:10,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:44:10,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:44:10,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:44:10,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:44:10,864 INFO L87 Difference]: Start difference. First operand 77361 states and 109789 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (75), 2 states have call predecessors, (75), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-11-23 15:44:13,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:44:17,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:44:21,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:44:21,414 INFO L93 Difference]: Finished difference Result 187286 states and 265649 transitions. [2022-11-23 15:44:21,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:44:21,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (75), 2 states have call predecessors, (75), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) Word has length 609 [2022-11-23 15:44:21,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:44:21,974 INFO L225 Difference]: With dead ends: 187286 [2022-11-23 15:44:21,975 INFO L226 Difference]: Without dead ends: 110154 [2022-11-23 15:44:22,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:44:22,223 INFO L413 NwaCegarLoop]: 6238 mSDtfsCounter, 3192 mSDsluCounter, 3336 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3196 SdHoareTripleChecker+Valid, 9574 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:44:22,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3196 Valid, 9574 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1174 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-11-23 15:44:22,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110154 states. [2022-11-23 15:44:26,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110154 to 110150. [2022-11-23 15:44:26,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110150 states, 65713 states have (on average 1.2915861397288209) internal successors, (84874), 67638 states have internal predecessors, (84874), 35421 states have call successors, (35421), 9027 states have call predecessors, (35421), 9015 states have return successors, (35643), 35002 states have call predecessors, (35643), 35421 states have call successors, (35643) [2022-11-23 15:44:27,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110150 states to 110150 states and 155938 transitions. [2022-11-23 15:44:27,733 INFO L78 Accepts]: Start accepts. Automaton has 110150 states and 155938 transitions. Word has length 609 [2022-11-23 15:44:27,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:44:27,734 INFO L495 AbstractCegarLoop]: Abstraction has 110150 states and 155938 transitions. [2022-11-23 15:44:27,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (75), 2 states have call predecessors, (75), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-11-23 15:44:27,735 INFO L276 IsEmpty]: Start isEmpty. Operand 110150 states and 155938 transitions. [2022-11-23 15:44:27,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2022-11-23 15:44:27,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:44:27,834 INFO L195 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 4, 4, 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] [2022-11-23 15:44:27,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:44:27,834 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:44:27,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:44:27,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1246709957, now seen corresponding path program 1 times [2022-11-23 15:44:27,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:44:27,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468812596] [2022-11-23 15:44:27,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:44:27,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:44:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:44:28,618 INFO L134 CoverageAnalysis]: Checked inductivity of 8053 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8050 trivial. 0 not checked. [2022-11-23 15:44:28,619 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:44:28,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468812596] [2022-11-23 15:44:28,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468812596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:44:28,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:44:28,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:44:28,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996654131] [2022-11-23 15:44:28,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:44:28,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:44:28,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:44:28,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:44:28,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:44:28,623 INFO L87 Difference]: Start difference. First operand 110150 states and 155938 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-11-23 15:44:31,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:44:35,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []