./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI --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 c727ee56ff8cf558c3dc08b64ebc267261ea17bdfb88e50734daf71ad89adc7d --- 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-5e519f3 [2022-11-03 01:57:10,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:57:10,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:57:10,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:57:10,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:57:10,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:57:10,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:57:10,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:57:10,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:57:10,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:57:10,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:57:10,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:57:10,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:57:10,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:57:10,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:57:10,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:57:10,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:57:10,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:57:10,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:57:10,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:57:10,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:57:10,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:57:10,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:57:10,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:57:10,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:57:10,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:57:10,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:57:10,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:57:10,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:57:10,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:57:10,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:57:10,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:57:10,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:57:10,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:57:10,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:57:10,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:57:10,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:57:10,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:57:10,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:57:10,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:57:10,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:57:10,896 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:57:10,921 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:57:10,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:57:10,922 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:57:10,922 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:57:10,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:57:10,923 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:57:10,923 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:57:10,924 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:57:10,924 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:57:10,924 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:57:10,924 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:57:10,925 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:57:10,925 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:57:10,925 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:57:10,925 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:57:10,926 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:57:10,926 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:57:10,926 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:57:10,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:57:10,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:57:10,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:57:10,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:57:10,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:57:10,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:57:10,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:57:10,929 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:57:10,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:57:10,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:57:10,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:57:10,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:57:10,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:57:10,931 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:57:10,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:57:10,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:57:10,931 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:57:10,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:57:10,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:57:10,932 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:57:10,933 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_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c727ee56ff8cf558c3dc08b64ebc267261ea17bdfb88e50734daf71ad89adc7d [2022-11-03 01:57:11,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:57:11,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:57:11,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:57:11,246 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:57:11,247 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:57:11,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2022-11-03 01:57:11,355 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI/data/363298da4/73b1f3e86e824feead5548dbe68e78e8/FLAG8c9a794a3 [2022-11-03 01:57:12,373 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:57:12,375 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2022-11-03 01:57:12,427 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI/data/363298da4/73b1f3e86e824feead5548dbe68e78e8/FLAG8c9a794a3 [2022-11-03 01:57:12,799 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI/data/363298da4/73b1f3e86e824feead5548dbe68e78e8 [2022-11-03 01:57:12,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:57:12,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:57:12,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:57:12,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:57:12,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:57:12,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:57:12" (1/1) ... [2022-11-03 01:57:12,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc303d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:12, skipping insertion in model container [2022-11-03 01:57:12,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:57:12" (1/1) ... [2022-11-03 01:57:12,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:57:13,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:57:15,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328445,328458] [2022-11-03 01:57:15,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328590,328603] [2022-11-03 01:57:15,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:57:15,807 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:57:16,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328445,328458] [2022-11-03 01:57:16,216 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328590,328603] [2022-11-03 01:57:16,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:57:16,359 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:57:16,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:16 WrapperNode [2022-11-03 01:57:16,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:57:16,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:57:16,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:57:16,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:57:16,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:16" (1/1) ... [2022-11-03 01:57:16,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:16" (1/1) ... [2022-11-03 01:57:16,624 INFO L138 Inliner]: procedures = 388, calls = 2109, calls flagged for inlining = 154, calls inlined = 135, statements flattened = 4340 [2022-11-03 01:57:16,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:57:16,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:57:16,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:57:16,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:57:16,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:16" (1/1) ... [2022-11-03 01:57:16,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:16" (1/1) ... [2022-11-03 01:57:16,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:16" (1/1) ... [2022-11-03 01:57:16,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:16" (1/1) ... [2022-11-03 01:57:16,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:16" (1/1) ... [2022-11-03 01:57:16,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:16" (1/1) ... [2022-11-03 01:57:16,865 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:16" (1/1) ... [2022-11-03 01:57:16,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:16" (1/1) ... [2022-11-03 01:57:16,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:57:16,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:57:16,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:57:16,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:57:16,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:16" (1/1) ... [2022-11-03 01:57:16,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:57:16,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:57:16,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:57:16,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:57:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2022-11-03 01:57:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2022-11-03 01:57:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 01:57:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 01:57:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2022-11-03 01:57:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2022-11-03 01:57:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2022-11-03 01:57:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2022-11-03 01:57:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 01:57:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 01:57:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:57:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:57:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 01:57:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 01:57:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2022-11-03 01:57:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2022-11-03 01:57:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2022-11-03 01:57:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2022-11-03 01:57:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2022-11-03 01:57:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2022-11-03 01:57:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-03 01:57:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-03 01:57:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 01:57:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 01:57:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2022-11-03 01:57:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2022-11-03 01:57:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2022-11-03 01:57:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2022-11-03 01:57:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-03 01:57:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-03 01:57:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 01:57:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 01:57:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:57:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2022-11-03 01:57:17,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2022-11-03 01:57:17,019 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2022-11-03 01:57:17,019 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2022-11-03 01:57:17,019 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-03 01:57:17,019 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-03 01:57:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2022-11-03 01:57:17,020 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2022-11-03 01:57:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 01:57:17,020 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 01:57:17,021 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2022-11-03 01:57:17,021 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2022-11-03 01:57:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2022-11-03 01:57:17,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2022-11-03 01:57:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 01:57:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2022-11-03 01:57:17,023 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2022-11-03 01:57:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2022-11-03 01:57:17,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2022-11-03 01:57:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2022-11-03 01:57:17,024 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2022-11-03 01:57:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 01:57:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 01:57:17,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 01:57:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2022-11-03 01:57:17,026 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2022-11-03 01:57:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:57:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 01:57:17,026 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 01:57:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2022-11-03 01:57:17,026 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2022-11-03 01:57:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 01:57:17,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 01:57:17,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 01:57:17,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 01:57:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 01:57:17,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 01:57:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2022-11-03 01:57:17,028 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2022-11-03 01:57:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2022-11-03 01:57:17,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2022-11-03 01:57:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2022-11-03 01:57:17,028 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2022-11-03 01:57:17,029 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2022-11-03 01:57:17,029 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2022-11-03 01:57:17,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:57:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 01:57:17,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 01:57:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2022-11-03 01:57:17,030 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2022-11-03 01:57:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:57:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 01:57:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 01:57:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 01:57:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 01:57:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:57:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:57:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:57:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:57:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:57:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2022-11-03 01:57:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2022-11-03 01:57:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-03 01:57:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-03 01:57:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-03 01:57:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-03 01:57:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-03 01:57:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-03 01:57:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 01:57:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 01:57:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2022-11-03 01:57:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2022-11-03 01:57:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2022-11-03 01:57:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2022-11-03 01:57:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 01:57:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 01:57:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 01:57:17,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 01:57:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2022-11-03 01:57:17,039 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2022-11-03 01:57:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:57:17,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:57:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2022-11-03 01:57:17,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2022-11-03 01:57:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:57:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:57:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 01:57:17,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 01:57:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2022-11-03 01:57:17,047 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2022-11-03 01:57:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-11-03 01:57:17,047 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-11-03 01:57:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2022-11-03 01:57:17,047 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2022-11-03 01:57:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2022-11-03 01:57:17,047 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2022-11-03 01:57:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 01:57:17,048 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 01:57:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2022-11-03 01:57:17,048 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2022-11-03 01:57:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2022-11-03 01:57:17,048 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2022-11-03 01:57:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 01:57:17,048 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 01:57:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:57:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:57:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2022-11-03 01:57:17,049 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2022-11-03 01:57:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:57:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 01:57:17,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 01:57:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-03 01:57:17,049 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-03 01:57:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 01:57:17,049 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 01:57:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-03 01:57:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-03 01:57:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 01:57:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 01:57:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 01:57:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 01:57:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 01:57:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 01:57:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2022-11-03 01:57:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2022-11-03 01:57:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-03 01:57:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-03 01:57:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-03 01:57:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-03 01:57:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 01:57:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 01:57:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 01:57:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 01:57:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-03 01:57:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-03 01:57:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:57:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-03 01:57:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-03 01:57:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2022-11-03 01:57:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2022-11-03 01:57:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-03 01:57:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-03 01:57:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 01:57:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 01:57:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2022-11-03 01:57:17,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2022-11-03 01:57:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2022-11-03 01:57:17,054 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2022-11-03 01:57:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2022-11-03 01:57:17,055 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2022-11-03 01:57:17,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 01:57:17,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 01:57:17,056 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2022-11-03 01:57:17,056 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2022-11-03 01:57:17,056 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2022-11-03 01:57:17,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2022-11-03 01:57:17,056 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2022-11-03 01:57:17,056 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2022-11-03 01:57:17,056 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-03 01:57:17,057 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-03 01:57:17,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:57:17,057 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-03 01:57:17,057 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-03 01:57:17,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 01:57:17,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 01:57:17,057 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2022-11-03 01:57:17,057 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2022-11-03 01:57:17,849 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:57:17,853 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:57:18,182 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 01:57:22,054 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 01:57:22,695 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:57:23,912 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:57:23,913 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 01:57:23,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:57:23 BoogieIcfgContainer [2022-11-03 01:57:23,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:57:23,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:57:23,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:57:23,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:57:23,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:57:12" (1/3) ... [2022-11-03 01:57:23,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@367b11aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:57:23, skipping insertion in model container [2022-11-03 01:57:23,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:16" (2/3) ... [2022-11-03 01:57:23,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@367b11aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:57:23, skipping insertion in model container [2022-11-03 01:57:23,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:57:23" (3/3) ... [2022-11-03 01:57:23,929 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2022-11-03 01:57:23,950 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:57:23,950 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:57:24,119 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:57:24,127 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;@6b646832, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:57:24,127 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:57:24,139 INFO L276 IsEmpty]: Start isEmpty. Operand has 1559 states, 807 states have (on average 1.241635687732342) internal successors, (1002), 831 states have internal predecessors, (1002), 660 states have call successors, (660), 92 states have call predecessors, (660), 91 states have return successors, (656), 644 states have call predecessors, (656), 656 states have call successors, (656) [2022-11-03 01:57:24,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-03 01:57:24,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:57:24,188 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:57:24,188 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:57:24,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:57:24,194 INFO L85 PathProgramCache]: Analyzing trace with hash 737644416, now seen corresponding path program 1 times [2022-11-03 01:57:24,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:57:24,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438653515] [2022-11-03 01:57:24,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:24,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:57:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:57:25,091 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-03 01:57:25,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:57:25,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438653515] [2022-11-03 01:57:25,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438653515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:57:25,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:57:25,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:57:25,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176964442] [2022-11-03 01:57:25,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:57:25,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:57:25,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:57:25,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:57:25,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:57:25,147 INFO L87 Difference]: Start difference. First operand has 1559 states, 807 states have (on average 1.241635687732342) internal successors, (1002), 831 states have internal predecessors, (1002), 660 states have call successors, (660), 92 states have call predecessors, (660), 91 states have return successors, (656), 644 states have call predecessors, (656), 656 states have call successors, (656) Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 01:57:26,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:28,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:30,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:34,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:57:34,241 INFO L93 Difference]: Finished difference Result 4334 states and 6480 transitions. [2022-11-03 01:57:34,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:57:34,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 127 [2022-11-03 01:57:34,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:57:34,310 INFO L225 Difference]: With dead ends: 4334 [2022-11-03 01:57:34,310 INFO L226 Difference]: Without dead ends: 2729 [2022-11-03 01:57:34,334 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 [2022-11-03 01:57:34,339 INFO L413 NwaCegarLoop]: 2720 mSDtfsCounter, 1852 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1852 SdHoareTripleChecker+Valid, 4818 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-03 01:57:34,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1852 Valid, 4818 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-11-03 01:57:34,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2022-11-03 01:57:34,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2725. [2022-11-03 01:57:34,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2725 states, 1416 states have (on average 1.2337570621468927) internal successors, (1747), 1462 states have internal predecessors, (1747), 1143 states have call successors, (1143), 166 states have call predecessors, (1143), 165 states have return successors, (1160), 1116 states have call predecessors, (1160), 1143 states have call successors, (1160) [2022-11-03 01:57:34,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2725 states to 2725 states and 4050 transitions. [2022-11-03 01:57:34,793 INFO L78 Accepts]: Start accepts. Automaton has 2725 states and 4050 transitions. Word has length 127 [2022-11-03 01:57:34,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:57:34,794 INFO L495 AbstractCegarLoop]: Abstraction has 2725 states and 4050 transitions. [2022-11-03 01:57:34,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 01:57:34,794 INFO L276 IsEmpty]: Start isEmpty. Operand 2725 states and 4050 transitions. [2022-11-03 01:57:34,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-03 01:57:34,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:57:34,822 INFO L195 NwaCegarLoop]: trace histogram [8, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 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] [2022-11-03 01:57:34,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:57:34,823 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:57:34,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:57:34,824 INFO L85 PathProgramCache]: Analyzing trace with hash 806473264, now seen corresponding path program 1 times [2022-11-03 01:57:34,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:57:34,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386205786] [2022-11-03 01:57:34,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:34,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:57:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:57:35,418 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2022-11-03 01:57:35,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:57:35,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386205786] [2022-11-03 01:57:35,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386205786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:57:35,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:57:35,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:57:35,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276412295] [2022-11-03 01:57:35,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:57:35,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:57:35,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:57:35,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:57:35,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:57:35,423 INFO L87 Difference]: Start difference. First operand 2725 states and 4050 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 01:57:38,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:41,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:57:41,889 INFO L93 Difference]: Finished difference Result 7256 states and 10798 transitions. [2022-11-03 01:57:41,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:57:41,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 181 [2022-11-03 01:57:41,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:57:41,932 INFO L225 Difference]: With dead ends: 7256 [2022-11-03 01:57:41,932 INFO L226 Difference]: Without dead ends: 4542 [2022-11-03 01:57:41,949 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 [2022-11-03 01:57:41,950 INFO L413 NwaCegarLoop]: 2568 mSDtfsCounter, 1571 mSDsluCounter, 2213 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 4598 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:57:41,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 4598 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-03 01:57:41,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4542 states. [2022-11-03 01:57:42,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4542 to 4538. [2022-11-03 01:57:42,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4538 states, 2346 states have (on average 1.2310315430520034) internal successors, (2888), 2414 states have internal predecessors, (2888), 1913 states have call successors, (1913), 279 states have call predecessors, (1913), 278 states have return successors, (1930), 1876 states have call predecessors, (1930), 1913 states have call successors, (1930) [2022-11-03 01:57:42,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4538 states to 4538 states and 6731 transitions. [2022-11-03 01:57:42,301 INFO L78 Accepts]: Start accepts. Automaton has 4538 states and 6731 transitions. Word has length 181 [2022-11-03 01:57:42,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:57:42,303 INFO L495 AbstractCegarLoop]: Abstraction has 4538 states and 6731 transitions. [2022-11-03 01:57:42,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 01:57:42,304 INFO L276 IsEmpty]: Start isEmpty. Operand 4538 states and 6731 transitions. [2022-11-03 01:57:42,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-03 01:57:42,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:57:42,319 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:57:42,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:57:42,320 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:57:42,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:57:42,330 INFO L85 PathProgramCache]: Analyzing trace with hash -404910037, now seen corresponding path program 1 times [2022-11-03 01:57:42,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:57:42,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669742230] [2022-11-03 01:57:42,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:42,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:57:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:57:42,878 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-11-03 01:57:42,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:57:42,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669742230] [2022-11-03 01:57:42,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669742230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:57:42,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:57:42,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:57:42,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182966586] [2022-11-03 01:57:42,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:57:42,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:57:42,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:57:42,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:57:42,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:57:42,886 INFO L87 Difference]: Start difference. First operand 4538 states and 6731 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-03 01:57:45,396 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 [] [2022-11-03 01:57:48,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:57:48,626 INFO L93 Difference]: Finished difference Result 10834 states and 16085 transitions. [2022-11-03 01:57:48,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:57:48,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 225 [2022-11-03 01:57:48,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:57:48,679 INFO L225 Difference]: With dead ends: 10834 [2022-11-03 01:57:48,680 INFO L226 Difference]: Without dead ends: 6307 [2022-11-03 01:57:48,711 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 [2022-11-03 01:57:48,712 INFO L413 NwaCegarLoop]: 3470 mSDtfsCounter, 1536 mSDsluCounter, 2195 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1542 SdHoareTripleChecker+Valid, 5484 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:57:48,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1542 Valid, 5484 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 555 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-03 01:57:48,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6307 states. [2022-11-03 01:57:49,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6307 to 6301. [2022-11-03 01:57:49,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6301 states, 3255 states have (on average 1.2313364055299538) internal successors, (4008), 3345 states have internal predecessors, (4008), 2655 states have call successors, (2655), 391 states have call predecessors, (2655), 390 states have return successors, (2672), 2608 states have call predecessors, (2672), 2655 states have call successors, (2672) [2022-11-03 01:57:49,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6301 states to 6301 states and 9335 transitions. [2022-11-03 01:57:49,216 INFO L78 Accepts]: Start accepts. Automaton has 6301 states and 9335 transitions. Word has length 225 [2022-11-03 01:57:49,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:57:49,217 INFO L495 AbstractCegarLoop]: Abstraction has 6301 states and 9335 transitions. [2022-11-03 01:57:49,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-03 01:57:49,218 INFO L276 IsEmpty]: Start isEmpty. Operand 6301 states and 9335 transitions. [2022-11-03 01:57:49,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-11-03 01:57:49,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:57:49,250 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 11, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:57:49,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:57:49,251 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:57:49,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:57:49,252 INFO L85 PathProgramCache]: Analyzing trace with hash 133891934, now seen corresponding path program 1 times [2022-11-03 01:57:49,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:57:49,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521722749] [2022-11-03 01:57:49,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:49,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:57:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:57:50,129 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2022-11-03 01:57:50,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:57:50,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521722749] [2022-11-03 01:57:50,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521722749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:57:50,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:57:50,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:57:50,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686669359] [2022-11-03 01:57:50,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:57:50,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:57:50,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:57:50,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:57:50,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:57:50,136 INFO L87 Difference]: Start difference. First operand 6301 states and 9335 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-03 01:57:55,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:57:55,644 INFO L93 Difference]: Finished difference Result 14582 states and 21600 transitions. [2022-11-03 01:57:55,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:57:55,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 286 [2022-11-03 01:57:55,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:57:55,709 INFO L225 Difference]: With dead ends: 14582 [2022-11-03 01:57:55,709 INFO L226 Difference]: Without dead ends: 8292 [2022-11-03 01:57:55,751 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 [2022-11-03 01:57:55,752 INFO L413 NwaCegarLoop]: 3578 mSDtfsCounter, 2014 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2014 SdHoareTripleChecker+Valid, 5305 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:57:55,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2014 Valid, 5305 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-03 01:57:55,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8292 states. [2022-11-03 01:57:56,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8292 to 8288. [2022-11-03 01:57:56,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8288 states, 4278 states have (on average 1.2302477793361384) internal successors, (5263), 4395 states have internal predecessors, (5263), 3486 states have call successors, (3486), 525 states have call predecessors, (3486), 523 states have return successors, (3503), 3425 states have call predecessors, (3503), 3486 states have call successors, (3503) [2022-11-03 01:57:56,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8288 states to 8288 states and 12252 transitions. [2022-11-03 01:57:56,398 INFO L78 Accepts]: Start accepts. Automaton has 8288 states and 12252 transitions. Word has length 286 [2022-11-03 01:57:56,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:57:56,400 INFO L495 AbstractCegarLoop]: Abstraction has 8288 states and 12252 transitions. [2022-11-03 01:57:56,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-03 01:57:56,400 INFO L276 IsEmpty]: Start isEmpty. Operand 8288 states and 12252 transitions. [2022-11-03 01:57:56,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-11-03 01:57:56,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:57:56,429 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 11, 8, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:57:56,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:57:56,429 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:57:56,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:57:56,430 INFO L85 PathProgramCache]: Analyzing trace with hash 387094490, now seen corresponding path program 1 times [2022-11-03 01:57:56,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:57:56,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044138417] [2022-11-03 01:57:56,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:56,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:57:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:57:57,360 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2022-11-03 01:57:57,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:57:57,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044138417] [2022-11-03 01:57:57,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044138417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:57:57,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:57:57,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:57:57,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052495354] [2022-11-03 01:57:57,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:57:57,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:57:57,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:57:57,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:57:57,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:57:57,365 INFO L87 Difference]: Start difference. First operand 8288 states and 12252 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-03 01:58:02,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:03,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:58:03,673 INFO L93 Difference]: Finished difference Result 24469 states and 36183 transitions. [2022-11-03 01:58:03,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:58:03,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 314 [2022-11-03 01:58:03,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:58:03,790 INFO L225 Difference]: With dead ends: 24469 [2022-11-03 01:58:03,790 INFO L226 Difference]: Without dead ends: 16192 [2022-11-03 01:58:03,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:58:03,827 INFO L413 NwaCegarLoop]: 2640 mSDtfsCounter, 1992 mSDsluCounter, 2240 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 4687 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:58:03,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1992 Valid, 4687 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-03 01:58:03,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16192 states. [2022-11-03 01:58:05,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16192 to 16190. [2022-11-03 01:58:05,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16190 states, 8358 states have (on average 1.2316343622876287) internal successors, (10294), 8581 states have internal predecessors, (10294), 6803 states have call successors, (6803), 1031 states have call predecessors, (6803), 1028 states have return successors, (6839), 6687 states have call predecessors, (6839), 6803 states have call successors, (6839) [2022-11-03 01:58:05,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16190 states to 16190 states and 23936 transitions. [2022-11-03 01:58:05,265 INFO L78 Accepts]: Start accepts. Automaton has 16190 states and 23936 transitions. Word has length 314 [2022-11-03 01:58:05,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:58:05,267 INFO L495 AbstractCegarLoop]: Abstraction has 16190 states and 23936 transitions. [2022-11-03 01:58:05,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-03 01:58:05,268 INFO L276 IsEmpty]: Start isEmpty. Operand 16190 states and 23936 transitions. [2022-11-03 01:58:05,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-11-03 01:58:05,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:58:05,298 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 11, 8, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:58:05,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:58:05,299 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:58:05,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:58:05,299 INFO L85 PathProgramCache]: Analyzing trace with hash -982150899, now seen corresponding path program 1 times [2022-11-03 01:58:05,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:58:05,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708195474] [2022-11-03 01:58:05,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:58:05,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:58:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:58:06,927 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2022-11-03 01:58:06,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:58:06,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708195474] [2022-11-03 01:58:06,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708195474] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:58:06,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523373184] [2022-11-03 01:58:06,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:58:06,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:58:06,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:58:06,934 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:58:06,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:58:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:58:08,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 4438 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-03 01:58:08,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:58:28,745 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2022-11-03 01:58:28,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:58:28,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523373184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:58:28,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:58:28,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-11-03 01:58:28,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819099824] [2022-11-03 01:58:28,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:58:28,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:58:28,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:58:28,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:58:28,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:58:28,749 INFO L87 Difference]: Start difference. First operand 16190 states and 23936 transitions. Second operand has 6 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 1 states have call successors, (48) [2022-11-03 01:58:32,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:34,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:36,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:38,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:39,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:43,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:47,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:52,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:58:52,269 INFO L93 Difference]: Finished difference Result 28427 states and 42061 transitions. [2022-11-03 01:58:52,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:58:52,269 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 1 states have call successors, (48) Word has length 318 [2022-11-03 01:58:52,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:58:52,456 INFO L225 Difference]: With dead ends: 28427 [2022-11-03 01:58:52,456 INFO L226 Difference]: Without dead ends: 28425 [2022-11-03 01:58:52,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-03 01:58:52,473 INFO L413 NwaCegarLoop]: 3064 mSDtfsCounter, 1501 mSDsluCounter, 11171 mSDsCounter, 0 mSdLazyCounter, 2128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 13333 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:58:52,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 13333 Invalid, 2129 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2128 Invalid, 0 Unknown, 0 Unchecked, 21.7s Time] [2022-11-03 01:58:52,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28425 states. [2022-11-03 01:58:55,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28425 to 28405. [2022-11-03 01:58:55,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28405 states, 14622 states have (on average 1.231432088633566) internal successors, (18006), 15060 states have internal predecessors, (18006), 11980 states have call successors, (11980), 1824 states have call predecessors, (11980), 1802 states have return successors, (12052), 11708 states have call predecessors, (12052), 11980 states have call successors, (12052) [2022-11-03 01:58:55,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28405 states to 28405 states and 42038 transitions. [2022-11-03 01:58:55,667 INFO L78 Accepts]: Start accepts. Automaton has 28405 states and 42038 transitions. Word has length 318 [2022-11-03 01:58:55,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:58:55,668 INFO L495 AbstractCegarLoop]: Abstraction has 28405 states and 42038 transitions. [2022-11-03 01:58:55,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 1 states have call successors, (48) [2022-11-03 01:58:55,669 INFO L276 IsEmpty]: Start isEmpty. Operand 28405 states and 42038 transitions. [2022-11-03 01:58:55,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-11-03 01:58:55,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:58:55,727 INFO L195 NwaCegarLoop]: trace histogram [15, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:58:55,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:58:55,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed01f64c-a149-4ca2-882d-630758f6d34f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:58:55,942 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:58:55,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:58:55,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1534964272, now seen corresponding path program 1 times [2022-11-03 01:58:55,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:58:55,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145957766] [2022-11-03 01:58:55,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:58:55,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:58:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:58:56,610 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-11-03 01:58:56,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:58:56,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145957766] [2022-11-03 01:58:56,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145957766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:58:56,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:58:56,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:58:56,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034277466] [2022-11-03 01:58:56,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:58:56,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:58:56,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:58:56,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:58:56,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:58:56,616 INFO L87 Difference]: Start difference. First operand 28405 states and 42038 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-03 01:58:59,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:02,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:05,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:59:05,840 INFO L93 Difference]: Finished difference Result 62913 states and 93211 transitions. [2022-11-03 01:59:05,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:59:05,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 330 [2022-11-03 01:59:05,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:59:06,146 INFO L225 Difference]: With dead ends: 62913 [2022-11-03 01:59:06,146 INFO L226 Difference]: Without dead ends: 34519 [2022-11-03 01:59:06,316 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 [2022-11-03 01:59:06,317 INFO L413 NwaCegarLoop]: 3471 mSDtfsCounter, 1545 mSDsluCounter, 2203 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 5493 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-03 01:59:06,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1551 Valid, 5493 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 557 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-11-03 01:59:06,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34519 states. [2022-11-03 01:59:09,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34519 to 34501. [2022-11-03 01:59:09,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34501 states, 17772 states have (on average 1.2327256358316452) internal successors, (21908), 18296 states have internal predecessors, (21908), 14544 states have call successors, (14544), 2210 states have call predecessors, (14544), 2184 states have return successors, (14616), 14222 states have call predecessors, (14616), 14544 states have call successors, (14616) [2022-11-03 01:59:09,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34501 states to 34501 states and 51068 transitions. [2022-11-03 01:59:09,835 INFO L78 Accepts]: Start accepts. Automaton has 34501 states and 51068 transitions. Word has length 330 [2022-11-03 01:59:09,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:59:09,836 INFO L495 AbstractCegarLoop]: Abstraction has 34501 states and 51068 transitions. [2022-11-03 01:59:09,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-03 01:59:09,837 INFO L276 IsEmpty]: Start isEmpty. Operand 34501 states and 51068 transitions. [2022-11-03 01:59:09,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-11-03 01:59:09,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:59:09,905 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:59:09,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 01:59:09,906 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:59:09,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:59:09,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1035810999, now seen corresponding path program 1 times [2022-11-03 01:59:09,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:59:09,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099459077] [2022-11-03 01:59:09,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:59:09,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:59:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:59:10,484 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2022-11-03 01:59:10,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:59:10,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099459077] [2022-11-03 01:59:10,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099459077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:59:10,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:59:10,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:59:10,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995707436] [2022-11-03 01:59:10,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:59:10,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:59:10,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:59:10,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:59:10,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:59:10,489 INFO L87 Difference]: Start difference. First operand 34501 states and 51068 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-03 01:59:12,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:14,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:20,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:59:20,137 INFO L93 Difference]: Finished difference Result 68934 states and 101540 transitions. [2022-11-03 01:59:20,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:59:20,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 368 [2022-11-03 01:59:20,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:59:20,320 INFO L225 Difference]: With dead ends: 68934 [2022-11-03 01:59:20,320 INFO L226 Difference]: Without dead ends: 34444 [2022-11-03 01:59:20,486 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 [2022-11-03 01:59:20,487 INFO L413 NwaCegarLoop]: 2666 mSDtfsCounter, 2059 mSDsluCounter, 2213 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 4694 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:59:20,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2059 Valid, 4694 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-11-03 01:59:20,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34444 states. [2022-11-03 01:59:23,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34444 to 34434. [2022-11-03 01:59:23,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34434 states, 18301 states have (on average 1.222938637232938) internal successors, (22381), 18855 states have internal predecessors, (22381), 13880 states have call successors, (13880), 2290 states have call predecessors, (13880), 2252 states have return successors, (14018), 13502 states have call predecessors, (14018), 13880 states have call successors, (14018) [2022-11-03 01:59:23,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34434 states to 34434 states and 50279 transitions. [2022-11-03 01:59:23,706 INFO L78 Accepts]: Start accepts. Automaton has 34434 states and 50279 transitions. Word has length 368 [2022-11-03 01:59:23,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:59:23,707 INFO L495 AbstractCegarLoop]: Abstraction has 34434 states and 50279 transitions. [2022-11-03 01:59:23,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-03 01:59:23,707 INFO L276 IsEmpty]: Start isEmpty. Operand 34434 states and 50279 transitions. [2022-11-03 01:59:23,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-11-03 01:59:23,718 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:59:23,718 INFO L195 NwaCegarLoop]: trace histogram [17, 14, 14, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:59:23,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 01:59:23,718 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:59:23,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:59:23,719 INFO L85 PathProgramCache]: Analyzing trace with hash 264409717, now seen corresponding path program 1 times [2022-11-03 01:59:23,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:59:23,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338625625] [2022-11-03 01:59:23,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:59:23,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:59:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:59:24,265 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2022-11-03 01:59:24,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:59:24,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338625625] [2022-11-03 01:59:24,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338625625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:59:24,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:59:24,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:59:24,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730489537] [2022-11-03 01:59:24,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:59:24,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:59:24,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:59:24,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:59:24,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:59:24,269 INFO L87 Difference]: Start difference. First operand 34434 states and 50279 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 01:59:26,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:28,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:30,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:32,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:35,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:37,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:44,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:59:44,409 INFO L93 Difference]: Finished difference Result 75361 states and 109991 transitions. [2022-11-03 01:59:44,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:59:44,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) Word has length 365 [2022-11-03 01:59:44,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:59:44,661 INFO L225 Difference]: With dead ends: 75361 [2022-11-03 01:59:44,662 INFO L226 Difference]: Without dead ends: 40956 [2022-11-03 01:59:44,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:59:44,823 INFO L413 NwaCegarLoop]: 3574 mSDtfsCounter, 1696 mSDsluCounter, 9990 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 12740 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:59:44,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1696 Valid, 12740 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 17.2s Time] [2022-11-03 01:59:44,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40956 states. [2022-11-03 01:59:47,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40956 to 40918. [2022-11-03 01:59:47,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40918 states, 21704 states have (on average 1.224382602285293) internal successors, (26574), 22439 states have internal predecessors, (26574), 16466 states have call successors, (16466), 2787 states have call predecessors, (16466), 2747 states have return successors, (16622), 15965 states have call predecessors, (16622), 16466 states have call successors, (16622) [2022-11-03 01:59:47,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40918 states to 40918 states and 59662 transitions. [2022-11-03 01:59:47,882 INFO L78 Accepts]: Start accepts. Automaton has 40918 states and 59662 transitions. Word has length 365 [2022-11-03 01:59:47,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:59:47,883 INFO L495 AbstractCegarLoop]: Abstraction has 40918 states and 59662 transitions. [2022-11-03 01:59:47,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 01:59:47,883 INFO L276 IsEmpty]: Start isEmpty. Operand 40918 states and 59662 transitions. [2022-11-03 01:59:47,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-11-03 01:59:47,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:59:47,895 INFO L195 NwaCegarLoop]: trace histogram [17, 14, 14, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:59:47,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 01:59:47,896 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:59:47,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:59:47,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1390279882, now seen corresponding path program 1 times [2022-11-03 01:59:47,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:59:47,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043337712] [2022-11-03 01:59:47,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:59:47,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:59:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:59:48,454 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2022-11-03 01:59:48,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:59:48,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043337712] [2022-11-03 01:59:48,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043337712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:59:48,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:59:48,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:59:48,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773105514] [2022-11-03 01:59:48,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:59:48,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:59:48,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:59:48,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:59:48,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:59:48,457 INFO L87 Difference]: Start difference. First operand 40918 states and 59662 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 01:59:50,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:52,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:53,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:56,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:57,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:00:03,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:00:07,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:00:07,576 INFO L93 Difference]: Finished difference Result 87277 states and 127341 transitions. [2022-11-03 02:00:07,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:00:07,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) Word has length 366 [2022-11-03 02:00:07,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:00:07,853 INFO L225 Difference]: With dead ends: 87277 [2022-11-03 02:00:07,853 INFO L226 Difference]: Without dead ends: 46388 [2022-11-03 02:00:08,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:00:08,051 INFO L413 NwaCegarLoop]: 3514 mSDtfsCounter, 1575 mSDsluCounter, 9863 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 12564 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:00:08,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1575 Valid, 12564 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 16.1s Time] [2022-11-03 02:00:08,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46388 states. [2022-11-03 02:00:11,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46388 to 46350. [2022-11-03 02:00:11,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46350 states, 24563 states have (on average 1.223506900622888) internal successors, (30053), 25373 states have internal predecessors, (30053), 18674 states have call successors, (18674), 3144 states have call predecessors, (18674), 3112 states have return successors, (18842), 18138 states have call predecessors, (18842), 18674 states have call successors, (18842) [2022-11-03 02:00:11,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46350 states to 46350 states and 67569 transitions. [2022-11-03 02:00:11,607 INFO L78 Accepts]: Start accepts. Automaton has 46350 states and 67569 transitions. Word has length 366 [2022-11-03 02:00:11,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:00:11,608 INFO L495 AbstractCegarLoop]: Abstraction has 46350 states and 67569 transitions. [2022-11-03 02:00:11,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 02:00:11,608 INFO L276 IsEmpty]: Start isEmpty. Operand 46350 states and 67569 transitions. [2022-11-03 02:00:11,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-11-03 02:00:11,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:00:11,615 INFO L195 NwaCegarLoop]: trace histogram [17, 14, 14, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:00:11,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:00:11,615 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:00:11,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:00:11,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1330809289, now seen corresponding path program 1 times [2022-11-03 02:00:11,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:00:11,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662281081] [2022-11-03 02:00:11,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:11,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:00:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:12,101 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2022-11-03 02:00:12,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:00:12,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662281081] [2022-11-03 02:00:12,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662281081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:00:12,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:00:12,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:00:12,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709636367] [2022-11-03 02:00:12,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:00:12,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:00:12,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:00:12,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:00:12,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:00:12,105 INFO L87 Difference]: Start difference. First operand 46350 states and 67569 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 02:00:14,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:00:16,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:00:27,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:00:27,576 INFO L93 Difference]: Finished difference Result 98057 states and 143107 transitions. [2022-11-03 02:00:27,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:00:27,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) Word has length 368 [2022-11-03 02:00:27,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:00:27,905 INFO L225 Difference]: With dead ends: 98057 [2022-11-03 02:00:27,905 INFO L226 Difference]: Without dead ends: 51736 [2022-11-03 02:00:28,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:00:28,118 INFO L413 NwaCegarLoop]: 3513 mSDtfsCounter, 1563 mSDsluCounter, 9866 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 12567 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:00:28,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1563 Valid, 12567 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2022-11-03 02:00:28,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51736 states. [2022-11-03 02:00:31,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51736 to 51698. [2022-11-03 02:00:31,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51698 states, 27386 states have (on average 1.2231066968524062) internal successors, (33496), 28271 states have internal predecessors, (33496), 20870 states have call successors, (20870), 3477 states have call predecessors, (20870), 3441 states have return successors, (21038), 20287 states have call predecessors, (21038), 20870 states have call successors, (21038) [2022-11-03 02:00:31,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51698 states to 51698 states and 75404 transitions. [2022-11-03 02:00:31,951 INFO L78 Accepts]: Start accepts. Automaton has 51698 states and 75404 transitions. Word has length 368 [2022-11-03 02:00:31,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:00:31,953 INFO L495 AbstractCegarLoop]: Abstraction has 51698 states and 75404 transitions. [2022-11-03 02:00:31,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 02:00:31,953 INFO L276 IsEmpty]: Start isEmpty. Operand 51698 states and 75404 transitions. [2022-11-03 02:00:31,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-11-03 02:00:31,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:00:31,963 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:00:31,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:00:31,964 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:00:31,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:00:31,964 INFO L85 PathProgramCache]: Analyzing trace with hash -966840358, now seen corresponding path program 1 times [2022-11-03 02:00:31,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:00:31,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205390704] [2022-11-03 02:00:31,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:31,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:00:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:32,296 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2022-11-03 02:00:32,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:00:32,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205390704] [2022-11-03 02:00:32,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205390704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:00:32,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:00:32,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:00:32,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414612767] [2022-11-03 02:00:32,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:00:32,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:00:32,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:00:32,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:00:32,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:00:32,299 INFO L87 Difference]: Start difference. First operand 51698 states and 75404 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 02:00:34,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:00:36,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:00:42,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:00:42,476 INFO L93 Difference]: Finished difference Result 109425 states and 159635 transitions. [2022-11-03 02:00:42,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:00:42,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 380 [2022-11-03 02:00:42,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:00:42,981 INFO L225 Difference]: With dead ends: 109425 [2022-11-03 02:00:42,981 INFO L226 Difference]: Without dead ends: 57756 [2022-11-03 02:00:43,159 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 [2022-11-03 02:00:43,159 INFO L413 NwaCegarLoop]: 3302 mSDtfsCounter, 1692 mSDsluCounter, 2208 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 5327 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:00:43,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 5327 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-03 02:00:43,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57756 states. [2022-11-03 02:00:47,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57756 to 57742. [2022-11-03 02:00:47,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57742 states, 30545 states have (on average 1.2251104927156655) internal successors, (37421), 31603 states have internal predecessors, (37421), 23320 states have call successors, (23320), 3922 states have call predecessors, (23320), 3876 states have return successors, (23488), 22606 states have call predecessors, (23488), 23320 states have call successors, (23488) [2022-11-03 02:00:47,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57742 states to 57742 states and 84229 transitions. [2022-11-03 02:00:47,543 INFO L78 Accepts]: Start accepts. Automaton has 57742 states and 84229 transitions. Word has length 380 [2022-11-03 02:00:47,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:00:47,543 INFO L495 AbstractCegarLoop]: Abstraction has 57742 states and 84229 transitions. [2022-11-03 02:00:47,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 02:00:47,544 INFO L276 IsEmpty]: Start isEmpty. Operand 57742 states and 84229 transitions. [2022-11-03 02:00:47,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-11-03 02:00:47,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:00:47,560 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:00:47,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 02:00:47,560 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:00:47,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:00:47,561 INFO L85 PathProgramCache]: Analyzing trace with hash 578247368, now seen corresponding path program 1 times [2022-11-03 02:00:47,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:00:47,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57179312] [2022-11-03 02:00:47,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:47,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:00:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:48,053 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2022-11-03 02:00:48,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:00:48,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57179312] [2022-11-03 02:00:48,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57179312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:00:48,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:00:48,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:00:48,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738797861] [2022-11-03 02:00:48,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:00:48,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:00:48,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:00:48,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:00:48,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:00:48,057 INFO L87 Difference]: Start difference. First operand 57742 states and 84229 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46)