./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-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/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_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/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_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/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 db9df3fec87d6b9c36faf813a91a46a081cd02854907cc9bcc81712e1820716c --- 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 03:40:42,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:40:42,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:40:42,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:40:42,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:40:42,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:40:42,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:40:42,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:40:42,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:40:43,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:40:43,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:40:43,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:40:43,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:40:43,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:40:43,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:40:43,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:40:43,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:40:43,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:40:43,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:40:43,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:40:43,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:40:43,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:40:43,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:40:43,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:40:43,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:40:43,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:40:43,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:40:43,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:40:43,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:40:43,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:40:43,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:40:43,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:40:43,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:40:43,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:40:43,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:40:43,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:40:43,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:40:43,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:40:43,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:40:43,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:40:43,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:40:43,075 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:40:43,122 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:40:43,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:40:43,124 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:40:43,124 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:40:43,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:40:43,126 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:40:43,126 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:40:43,126 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:40:43,126 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:40:43,127 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:40:43,128 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:40:43,128 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:40:43,129 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:40:43,129 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:40:43,129 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:40:43,130 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:40:43,130 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:40:43,130 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:40:43,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:40:43,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:40:43,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:40:43,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:40:43,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:40:43,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:40:43,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:40:43,133 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:40:43,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:40:43,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:40:43,134 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:40:43,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:40:43,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:40:43,135 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:40:43,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:40:43,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:40:43,136 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:40:43,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:40:43,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:40:43,137 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:40:43,138 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_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db9df3fec87d6b9c36faf813a91a46a081cd02854907cc9bcc81712e1820716c [2022-11-03 03:40:43,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:40:43,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:40:43,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:40:43,584 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:40:43,585 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:40:43,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i [2022-11-03 03:40:43,685 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/bin/utaipan-7li7fVZpFI/data/b71e6b92c/4d36ad7d559040f7834f293d213dad53/FLAGbeab78edf [2022-11-03 03:40:44,886 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:40:44,888 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i [2022-11-03 03:40:44,959 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/bin/utaipan-7li7fVZpFI/data/b71e6b92c/4d36ad7d559040f7834f293d213dad53/FLAGbeab78edf [2022-11-03 03:40:45,215 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/bin/utaipan-7li7fVZpFI/data/b71e6b92c/4d36ad7d559040f7834f293d213dad53 [2022-11-03 03:40:45,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:40:45,223 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:40:45,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:40:45,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:40:45,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:40:45,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:40:45" (1/1) ... [2022-11-03 03:40:45,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@740301a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:45, skipping insertion in model container [2022-11-03 03:40:45,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:40:45" (1/1) ... [2022-11-03 03:40:45,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:40:45,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:40:48,575 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_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297133,297146] [2022-11-03 03:40:48,579 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_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297278,297291] [2022-11-03 03:40:48,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:40:48,658 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:40:49,239 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_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297133,297146] [2022-11-03 03:40:49,241 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_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297278,297291] [2022-11-03 03:40:49,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:40:49,448 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:40:49,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:49 WrapperNode [2022-11-03 03:40:49,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:40:49,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:40:49,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:40:49,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:40:49,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:49" (1/1) ... [2022-11-03 03:40:49,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:49" (1/1) ... [2022-11-03 03:40:49,885 INFO L138 Inliner]: procedures = 323, calls = 1881, calls flagged for inlining = 162, calls inlined = 153, statements flattened = 4400 [2022-11-03 03:40:49,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:40:49,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:40:49,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:40:49,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:40:49,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:49" (1/1) ... [2022-11-03 03:40:49,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:49" (1/1) ... [2022-11-03 03:40:49,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:49" (1/1) ... [2022-11-03 03:40:49,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:49" (1/1) ... [2022-11-03 03:40:50,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:49" (1/1) ... [2022-11-03 03:40:50,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:49" (1/1) ... [2022-11-03 03:40:50,139 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:49" (1/1) ... [2022-11-03 03:40:50,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:49" (1/1) ... [2022-11-03 03:40:50,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:40:50,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:40:50,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:40:50,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:40:50,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:49" (1/1) ... [2022-11-03 03:40:50,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:40:50,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:40:50,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:40:50,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffeba4-60f7-4cfc-b1d3-bbebe6d57c66/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:40:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure vv6410_dump [2022-11-03 03:40:50,313 INFO L138 BoogieDeclarations]: Found implementation of procedure vv6410_dump [2022-11-03 03:40:50,313 INFO L130 BoogieDeclarations]: Found specification of procedure pb0100_init_controls [2022-11-03 03:40:50,313 INFO L138 BoogieDeclarations]: Found implementation of procedure pb0100_init_controls [2022-11-03 03:40:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_init_controls [2022-11-03 03:40:50,314 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_init_controls [2022-11-03 03:40:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure st6422_init [2022-11-03 03:40:50,314 INFO L138 BoogieDeclarations]: Found implementation of procedure st6422_init [2022-11-03 03:40:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:40:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:40:50,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:40:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_write_sensor_bytes [2022-11-03 03:40:50,315 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_write_sensor_bytes [2022-11-03 03:40:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 03:40:50,316 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 03:40:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure usb_altnum_to_altsetting [2022-11-03 03:40:50,316 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_altnum_to_altsetting [2022-11-03 03:40:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sd_driver_exit_14_2 [2022-11-03 03:40:50,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sd_driver_exit_14_2 [2022-11-03 03:40:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:40:50,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:40:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure vv6410_stop [2022-11-03 03:40:50,317 INFO L138 BoogieDeclarations]: Found implementation of procedure vv6410_stop [2022-11-03 03:40:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_probe_1020 [2022-11-03 03:40:50,318 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_probe_1020 [2022-11-03 03:40:50,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:40:50,318 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:40:50,318 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_frame_add [2022-11-03 03:40:50,319 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_frame_add [2022-11-03 03:40:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_start [2022-11-03 03:40:50,319 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_start [2022-11-03 03:40:50,320 INFO L130 BoogieDeclarations]: Found specification of procedure pb0100_init [2022-11-03 03:40:50,320 INFO L138 BoogieDeclarations]: Found implementation of procedure pb0100_init [2022-11-03 03:40:50,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:40:50,321 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-11-03 03:40:50,321 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-11-03 03:40:50,321 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_write_sensor [2022-11-03 03:40:50,321 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_write_sensor [2022-11-03 03:40:50,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:40:50,322 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_probe_1x00 [2022-11-03 03:40:50,322 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_probe_1x00 [2022-11-03 03:40:50,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 03:40:50,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 03:40:50,323 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_s_ctrl [2022-11-03 03:40:50,323 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_s_ctrl [2022-11-03 03:40:50,324 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-11-03 03:40:50,324 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-11-03 03:40:50,325 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-11-03 03:40:50,326 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-11-03 03:40:50,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:40:50,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:40:50,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:40:50,327 INFO L130 BoogieDeclarations]: Found specification of procedure vv6410_s_ctrl [2022-11-03 03:40:50,328 INFO L138 BoogieDeclarations]: Found implementation of procedure vv6410_s_ctrl [2022-11-03 03:40:50,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:40:50,328 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_isoc_init [2022-11-03 03:40:50,329 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_isoc_init [2022-11-03 03:40:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_init_controls [2022-11-03 03:40:50,330 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_init_controls [2022-11-03 03:40:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 03:40:50,330 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 03:40:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure vv6410_init_controls [2022-11-03 03:40:50,331 INFO L138 BoogieDeclarations]: Found implementation of procedure vv6410_init_controls [2022-11-03 03:40:50,331 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_set_state [2022-11-03 03:40:50,331 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_set_state [2022-11-03 03:40:50,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 03:40:50,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 03:40:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure st6422_start [2022-11-03 03:40:50,332 INFO L138 BoogieDeclarations]: Found implementation of procedure st6422_start [2022-11-03 03:40:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-11-03 03:40:50,333 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-11-03 03:40:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 03:40:50,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 03:40:50,334 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_read_bridge [2022-11-03 03:40:50,334 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_read_bridge [2022-11-03 03:40:50,334 INFO L130 BoogieDeclarations]: Found specification of procedure st6422_stop [2022-11-03 03:40:50,334 INFO L138 BoogieDeclarations]: Found implementation of procedure st6422_stop [2022-11-03 03:40:50,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:40:50,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 03:40:50,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 03:40:50,336 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_isoc_nego [2022-11-03 03:40:50,337 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_isoc_nego [2022-11-03 03:40:50,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:40:50,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-03 03:40:50,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-03 03:40:50,338 INFO L130 BoogieDeclarations]: Found specification of procedure vv6410_init [2022-11-03 03:40:50,338 INFO L138 BoogieDeclarations]: Found implementation of procedure vv6410_init [2022-11-03 03:40:50,339 INFO L130 BoogieDeclarations]: Found specification of procedure pb0100_probe [2022-11-03 03:40:50,339 INFO L138 BoogieDeclarations]: Found implementation of procedure pb0100_probe [2022-11-03 03:40:50,340 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_init [2022-11-03 03:40:50,341 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_init [2022-11-03 03:40:50,341 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-03 03:40:50,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-03 03:40:50,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 03:40:50,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 03:40:50,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 03:40:50,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 03:40:50,342 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:40:50,342 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:40:50,342 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_start [2022-11-03 03:40:50,343 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_start [2022-11-03 03:40:50,343 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_reg_write_seq [2022-11-03 03:40:50,343 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_reg_write_seq [2022-11-03 03:40:50,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:40:50,344 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-11-03 03:40:50,344 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-11-03 03:40:50,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_10_4 [2022-11-03 03:40:50,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_10_4 [2022-11-03 03:40:50,346 INFO L130 BoogieDeclarations]: Found specification of procedure vv6410_start [2022-11-03 03:40:50,349 INFO L138 BoogieDeclarations]: Found implementation of procedure vv6410_start [2022-11-03 03:40:50,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:40:50,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:40:50,350 INFO L130 BoogieDeclarations]: Found specification of procedure st6422_s_ctrl [2022-11-03 03:40:50,351 INFO L138 BoogieDeclarations]: Found implementation of procedure st6422_s_ctrl [2022-11-03 03:40:50,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:40:50,352 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_resume [2022-11-03 03:40:50,352 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_resume [2022-11-03 03:40:50,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 03:40:50,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 03:40:50,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 03:40:50,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 03:40:50,360 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_init [2022-11-03 03:40:50,360 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_init [2022-11-03 03:40:50,361 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_read_sensor [2022-11-03 03:40:50,361 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_read_sensor [2022-11-03 03:40:50,361 INFO L130 BoogieDeclarations]: Found specification of procedure vv6410_probe [2022-11-03 03:40:50,361 INFO L138 BoogieDeclarations]: Found implementation of procedure vv6410_probe [2022-11-03 03:40:50,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:40:50,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 03:40:50,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 03:40:50,362 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_stop [2022-11-03 03:40:50,362 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_stop [2022-11-03 03:40:50,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:40:50,362 INFO L130 BoogieDeclarations]: Found specification of procedure pb0100_stop [2022-11-03 03:40:50,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pb0100_stop [2022-11-03 03:40:50,363 INFO L130 BoogieDeclarations]: Found specification of procedure st6422_probe [2022-11-03 03:40:50,363 INFO L138 BoogieDeclarations]: Found implementation of procedure st6422_probe [2022-11-03 03:40:50,363 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_stopN [2022-11-03 03:40:50,363 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_stopN [2022-11-03 03:40:50,363 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_write_sensor_finish [2022-11-03 03:40:50,364 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_write_sensor_finish [2022-11-03 03:40:50,364 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_dump [2022-11-03 03:40:50,364 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_dump [2022-11-03 03:40:50,364 INFO L130 BoogieDeclarations]: Found specification of procedure pb0100_dump [2022-11-03 03:40:50,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pb0100_dump [2022-11-03 03:40:50,365 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_custom [2022-11-03 03:40:50,365 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_custom [2022-11-03 03:40:50,365 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:40:50,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:40:50,365 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-03 03:40:50,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-03 03:40:50,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-03 03:40:50,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-03 03:40:50,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-03 03:40:50,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-03 03:40:50,366 INFO L130 BoogieDeclarations]: Found specification of procedure pb0100_s_ctrl [2022-11-03 03:40:50,367 INFO L138 BoogieDeclarations]: Found implementation of procedure pb0100_s_ctrl [2022-11-03 03:40:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure st6422_init_controls [2022-11-03 03:40:50,367 INFO L138 BoogieDeclarations]: Found implementation of procedure st6422_init_controls [2022-11-03 03:40:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 03:40:50,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 03:40:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_write_bridge [2022-11-03 03:40:50,368 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_write_bridge [2022-11-03 03:40:50,368 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_init_class [2022-11-03 03:40:50,368 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_init_class [2022-11-03 03:40:50,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:40:50,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 03:40:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 03:40:50,369 INFO L130 BoogieDeclarations]: Found specification of procedure sd_disconnect [2022-11-03 03:40:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_disconnect [2022-11-03 03:40:50,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:40:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:40:50,369 INFO L130 BoogieDeclarations]: Found specification of procedure pb0100_start [2022-11-03 03:40:50,370 INFO L138 BoogieDeclarations]: Found implementation of procedure pb0100_start [2022-11-03 03:40:51,529 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:40:51,536 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:40:57,995 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:41:51,146 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 03:41:51,549 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:41:53,094 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:41:53,094 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 03:41:53,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:41:53 BoogieIcfgContainer [2022-11-03 03:41:53,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:41:53,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:41:53,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:41:53,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:41:53,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:40:45" (1/3) ... [2022-11-03 03:41:53,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6116619b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:41:53, skipping insertion in model container [2022-11-03 03:41:53,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:49" (2/3) ... [2022-11-03 03:41:53,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6116619b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:41:53, skipping insertion in model container [2022-11-03 03:41:53,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:41:53" (3/3) ... [2022-11-03 03:41:53,109 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i [2022-11-03 03:41:53,130 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:41:53,130 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:41:53,242 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:41:53,248 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;@7c50cc6e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:41:53,248 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:41:53,259 INFO L276 IsEmpty]: Start isEmpty. Operand has 1386 states, 864 states have (on average 1.3506944444444444) internal successors, (1167), 866 states have internal predecessors, (1167), 442 states have call successors, (442), 80 states have call predecessors, (442), 79 states have return successors, (435), 435 states have call predecessors, (435), 435 states have call successors, (435) [2022-11-03 03:41:53,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-11-03 03:41:53,316 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:53,317 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:53,318 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:53,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:53,325 INFO L85 PathProgramCache]: Analyzing trace with hash 962057894, now seen corresponding path program 1 times [2022-11-03 03:41:53,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:41:53,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199166482] [2022-11-03 03:41:53,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:53,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:41:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:54,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-11-03 03:41:54,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:41:54,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199166482] [2022-11-03 03:41:54,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199166482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:54,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:54,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:41:54,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811196775] [2022-11-03 03:41:54,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:54,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:41:54,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:41:54,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:41:54,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:41:54,830 INFO L87 Difference]: Start difference. First operand has 1386 states, 864 states have (on average 1.3506944444444444) internal successors, (1167), 866 states have internal predecessors, (1167), 442 states have call successors, (442), 80 states have call predecessors, (442), 79 states have return successors, (435), 435 states have call predecessors, (435), 435 states have call successors, (435) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:41:56,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:01,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:42:03,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:42:08,480 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 03:42:10,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:10,096 INFO L93 Difference]: Finished difference Result 4033 states and 6014 transitions. [2022-11-03 03:42:10,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:42:10,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 203 [2022-11-03 03:42:10,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:10,133 INFO L225 Difference]: With dead ends: 4033 [2022-11-03 03:42:10,134 INFO L226 Difference]: Without dead ends: 2626 [2022-11-03 03:42:10,148 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 03:42:10,150 INFO L413 NwaCegarLoop]: 2125 mSDtfsCounter, 1898 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 13 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1901 SdHoareTripleChecker+Valid, 3819 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:10,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1901 Valid, 3819 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 668 Invalid, 4 Unknown, 0 Unchecked, 14.9s Time] [2022-11-03 03:42:10,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2626 states. [2022-11-03 03:42:10,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2626 to 2622. [2022-11-03 03:42:10,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2622 states, 1664 states have (on average 1.3455528846153846) internal successors, (2239), 1668 states have internal predecessors, (2239), 805 states have call successors, (805), 152 states have call predecessors, (805), 152 states have return successors, (808), 803 states have call predecessors, (808), 805 states have call successors, (808) [2022-11-03 03:42:10,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2622 states to 2622 states and 3852 transitions. [2022-11-03 03:42:10,417 INFO L78 Accepts]: Start accepts. Automaton has 2622 states and 3852 transitions. Word has length 203 [2022-11-03 03:42:10,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:10,420 INFO L495 AbstractCegarLoop]: Abstraction has 2622 states and 3852 transitions. [2022-11-03 03:42:10,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:42:10,421 INFO L276 IsEmpty]: Start isEmpty. Operand 2622 states and 3852 transitions. [2022-11-03 03:42:10,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-03 03:42:10,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:10,435 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:10,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:42:10,436 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:10,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:10,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1791540313, now seen corresponding path program 1 times [2022-11-03 03:42:10,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:42:10,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545593001] [2022-11-03 03:42:10,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:10,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:42:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:11,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-11-03 03:42:11,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:42:11,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545593001] [2022-11-03 03:42:11,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545593001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:11,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:11,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:42:11,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95470933] [2022-11-03 03:42:11,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:11,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:42:11,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:42:11,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:42:11,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:42:11,219 INFO L87 Difference]: Start difference. First operand 2622 states and 3852 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:42:13,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:14,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:42:20,854 WARN L539 Checker$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 03:42:24,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:24,323 INFO L93 Difference]: Finished difference Result 7520 states and 11040 transitions. [2022-11-03 03:42:24,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:42:24,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 206 [2022-11-03 03:42:24,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:24,372 INFO L225 Difference]: With dead ends: 7520 [2022-11-03 03:42:24,372 INFO L226 Difference]: Without dead ends: 4933 [2022-11-03 03:42:24,392 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 03:42:24,393 INFO L413 NwaCegarLoop]: 2050 mSDtfsCounter, 1711 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1714 SdHoareTripleChecker+Valid, 3695 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:24,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1714 Valid, 3695 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 661 Invalid, 2 Unknown, 0 Unchecked, 12.8s Time] [2022-11-03 03:42:24,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4933 states. [2022-11-03 03:42:24,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4933 to 4927. [2022-11-03 03:42:24,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4927 states, 3116 states have (on average 1.3401797175866494) internal successors, (4176), 3126 states have internal predecessors, (4176), 1520 states have call successors, (1520), 290 states have call predecessors, (1520), 290 states have return successors, (1529), 1512 states have call predecessors, (1529), 1520 states have call successors, (1529) [2022-11-03 03:42:24,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4927 states to 4927 states and 7225 transitions. [2022-11-03 03:42:24,685 INFO L78 Accepts]: Start accepts. Automaton has 4927 states and 7225 transitions. Word has length 206 [2022-11-03 03:42:24,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:24,686 INFO L495 AbstractCegarLoop]: Abstraction has 4927 states and 7225 transitions. [2022-11-03 03:42:24,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:42:24,686 INFO L276 IsEmpty]: Start isEmpty. Operand 4927 states and 7225 transitions. [2022-11-03 03:42:24,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 03:42:24,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:24,696 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:24,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:42:24,699 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:24,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:24,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1710613357, now seen corresponding path program 1 times [2022-11-03 03:42:24,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:42:24,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591873936] [2022-11-03 03:42:24,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:24,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:42:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:25,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-11-03 03:42:25,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:42:25,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591873936] [2022-11-03 03:42:25,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591873936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:25,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:25,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:42:25,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46465201] [2022-11-03 03:42:25,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:25,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:42:25,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:42:25,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:42:25,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:42:25,542 INFO L87 Difference]: Start difference. First operand 4927 states and 7225 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 03:42:27,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:30,815 WARN L539 Checker$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 03:42:32,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:42:36,419 WARN L539 Checker$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 03:42:39,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:39,474 INFO L93 Difference]: Finished difference Result 14569 states and 21587 transitions. [2022-11-03 03:42:39,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:42:39,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 218 [2022-11-03 03:42:39,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:39,564 INFO L225 Difference]: With dead ends: 14569 [2022-11-03 03:42:39,564 INFO L226 Difference]: Without dead ends: 9677 [2022-11-03 03:42:39,602 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 03:42:39,603 INFO L413 NwaCegarLoop]: 2095 mSDtfsCounter, 1850 mSDsluCounter, 1942 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1912 SdHoareTripleChecker+Valid, 3741 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:39,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1912 Valid, 3741 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 677 Invalid, 3 Unknown, 0 Unchecked, 13.5s Time] [2022-11-03 03:42:39,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9677 states. [2022-11-03 03:42:40,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9677 to 9671. [2022-11-03 03:42:40,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9671 states, 6136 states have (on average 1.3370273794002607) internal successors, (8204), 6160 states have internal predecessors, (8204), 2954 states have call successors, (2954), 580 states have call predecessors, (2954), 580 states have return successors, (3211), 2934 states have call predecessors, (3211), 2954 states have call successors, (3211) [2022-11-03 03:42:40,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9671 states to 9671 states and 14369 transitions. [2022-11-03 03:42:40,252 INFO L78 Accepts]: Start accepts. Automaton has 9671 states and 14369 transitions. Word has length 218 [2022-11-03 03:42:40,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:40,254 INFO L495 AbstractCegarLoop]: Abstraction has 9671 states and 14369 transitions. [2022-11-03 03:42:40,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 03:42:40,255 INFO L276 IsEmpty]: Start isEmpty. Operand 9671 states and 14369 transitions. [2022-11-03 03:42:40,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-11-03 03:42:40,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:40,266 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:40,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:42:40,267 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:40,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:40,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1129875642, now seen corresponding path program 1 times [2022-11-03 03:42:40,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:42:40,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297356337] [2022-11-03 03:42:40,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:40,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:42:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:40,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-11-03 03:42:40,977 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:42:40,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297356337] [2022-11-03 03:42:40,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297356337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:40,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:40,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:42:40,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752181614] [2022-11-03 03:42:40,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:40,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:42:40,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:42:40,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:42:40,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:42:40,980 INFO L87 Difference]: Start difference. First operand 9671 states and 14369 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 03:42:43,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:46,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:42:47,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:52,639 WARN L539 Checker$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 03:42:54,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:54,145 INFO L93 Difference]: Finished difference Result 28661 states and 42555 transitions. [2022-11-03 03:42:54,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:42:54,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 219 [2022-11-03 03:42:54,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:54,311 INFO L225 Difference]: With dead ends: 28661 [2022-11-03 03:42:54,311 INFO L226 Difference]: Without dead ends: 19025 [2022-11-03 03:42:54,392 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 03:42:54,397 INFO L413 NwaCegarLoop]: 2127 mSDtfsCounter, 1850 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1852 SdHoareTripleChecker+Valid, 3773 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:54,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1852 Valid, 3773 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 695 Invalid, 2 Unknown, 0 Unchecked, 12.6s Time] [2022-11-03 03:42:54,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19025 states. [2022-11-03 03:42:55,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19025 to 19019. [2022-11-03 03:42:55,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19019 states, 12104 states have (on average 1.3331130204890944) internal successors, (16136), 12156 states have internal predecessors, (16136), 5754 states have call successors, (5754), 1160 states have call predecessors, (5754), 1160 states have return successors, (6263), 5710 states have call predecessors, (6263), 5754 states have call successors, (6263) [2022-11-03 03:42:56,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19019 states to 19019 states and 28153 transitions. [2022-11-03 03:42:56,100 INFO L78 Accepts]: Start accepts. Automaton has 19019 states and 28153 transitions. Word has length 219 [2022-11-03 03:42:56,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:56,101 INFO L495 AbstractCegarLoop]: Abstraction has 19019 states and 28153 transitions. [2022-11-03 03:42:56,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 03:42:56,101 INFO L276 IsEmpty]: Start isEmpty. Operand 19019 states and 28153 transitions. [2022-11-03 03:42:56,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-03 03:42:56,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:56,111 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:56,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:42:56,112 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:56,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:56,113 INFO L85 PathProgramCache]: Analyzing trace with hash 993991232, now seen corresponding path program 1 times [2022-11-03 03:42:56,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:42:56,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916456335] [2022-11-03 03:42:56,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:56,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:42:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:56,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-11-03 03:42:56,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:42:56,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916456335] [2022-11-03 03:42:56,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916456335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:56,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:56,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:42:56,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192436057] [2022-11-03 03:42:56,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:56,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:42:56,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:42:56,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:42:56,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:42:56,679 INFO L87 Difference]: Start difference. First operand 19019 states and 28153 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:42:58,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:06,437 WARN L539 Checker$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 03:43:08,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:08,664 INFO L93 Difference]: Finished difference Result 56395 states and 83427 transitions. [2022-11-03 03:43:08,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:43:08,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 210 [2022-11-03 03:43:08,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:08,906 INFO L225 Difference]: With dead ends: 56395 [2022-11-03 03:43:08,906 INFO L226 Difference]: Without dead ends: 37411 [2022-11-03 03:43:09,014 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 03:43:09,015 INFO L413 NwaCegarLoop]: 2161 mSDtfsCounter, 1853 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 3805 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:09,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1853 Valid, 3805 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 714 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2022-11-03 03:43:09,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37411 states. [2022-11-03 03:43:11,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37411 to 37405. [2022-11-03 03:43:11,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37405 states, 23865 states have (on average 1.3285145610727007) internal successors, (31705), 23973 states have internal predecessors, (31705), 11219 states have call successors, (11219), 2320 states have call predecessors, (11219), 2320 states have return successors, (12237), 11127 states have call predecessors, (12237), 11219 states have call successors, (12237) [2022-11-03 03:43:11,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37405 states to 37405 states and 55161 transitions. [2022-11-03 03:43:11,646 INFO L78 Accepts]: Start accepts. Automaton has 37405 states and 55161 transitions. Word has length 210 [2022-11-03 03:43:11,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:43:11,647 INFO L495 AbstractCegarLoop]: Abstraction has 37405 states and 55161 transitions. [2022-11-03 03:43:11,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:43:11,648 INFO L276 IsEmpty]: Start isEmpty. Operand 37405 states and 55161 transitions. [2022-11-03 03:43:11,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 03:43:11,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:11,662 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:43:11,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:43:11,663 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:43:11,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:11,663 INFO L85 PathProgramCache]: Analyzing trace with hash 324524465, now seen corresponding path program 1 times [2022-11-03 03:43:11,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:43:11,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90972033] [2022-11-03 03:43:11,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:11,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:43:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:12,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-11-03 03:43:12,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:43:12,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90972033] [2022-11-03 03:43:12,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90972033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:43:12,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:43:12,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:43:12,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760955874] [2022-11-03 03:43:12,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:43:12,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:43:12,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:43:12,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:43:12,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:43:12,703 INFO L87 Difference]: Start difference. First operand 37405 states and 55161 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:43:14,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:16,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:43:19,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:43:25,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:27,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:29,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:30,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:30,099 INFO L93 Difference]: Finished difference Result 107959 states and 159203 transitions. [2022-11-03 03:43:30,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:43:30,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 218 [2022-11-03 03:43:30,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:30,606 INFO L225 Difference]: With dead ends: 107959 [2022-11-03 03:43:30,606 INFO L226 Difference]: Without dead ends: 70589 [2022-11-03 03:43:30,822 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 03:43:30,824 INFO L413 NwaCegarLoop]: 2049 mSDtfsCounter, 1810 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 16 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1813 SdHoareTripleChecker+Valid, 3693 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:30,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1813 Valid, 3693 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 664 Invalid, 3 Unknown, 0 Unchecked, 14.6s Time] [2022-11-03 03:43:30,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70589 states. [2022-11-03 03:43:35,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70589 to 70523. [2022-11-03 03:43:35,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70523 states, 45243 states have (on average 1.3258404615078576) internal successors, (59985), 45523 states have internal predecessors, (59985), 20872 states have call successors, (20872), 4407 states have call predecessors, (20872), 4407 states have return successors, (22820), 20624 states have call predecessors, (22820), 20872 states have call successors, (22820) [2022-11-03 03:43:36,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70523 states to 70523 states and 103677 transitions. [2022-11-03 03:43:36,102 INFO L78 Accepts]: Start accepts. Automaton has 70523 states and 103677 transitions. Word has length 218 [2022-11-03 03:43:36,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:43:36,103 INFO L495 AbstractCegarLoop]: Abstraction has 70523 states and 103677 transitions. [2022-11-03 03:43:36,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:43:36,103 INFO L276 IsEmpty]: Start isEmpty. Operand 70523 states and 103677 transitions. [2022-11-03 03:43:36,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-03 03:43:36,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:36,120 INFO L195 NwaCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 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] [2022-11-03 03:43:36,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:43:36,120 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:43:36,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:36,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1588436235, now seen corresponding path program 1 times [2022-11-03 03:43:36,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:43:36,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994602926] [2022-11-03 03:43:36,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:36,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:43:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:37,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2022-11-03 03:43:37,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:43:37,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994602926] [2022-11-03 03:43:37,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994602926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:43:37,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:43:37,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:43:37,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692457476] [2022-11-03 03:43:37,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:43:37,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:43:37,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:43:37,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:43:37,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:43:37,043 INFO L87 Difference]: Start difference. First operand 70523 states and 103677 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 03:43:39,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:41,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:43:47,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:51,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:52,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:52,763 INFO L93 Difference]: Finished difference Result 143102 states and 209953 transitions. [2022-11-03 03:43:52,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:43:52,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 223 [2022-11-03 03:43:52,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:53,090 INFO L225 Difference]: With dead ends: 143102 [2022-11-03 03:43:53,091 INFO L226 Difference]: Without dead ends: 72614 [2022-11-03 03:43:53,357 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 03:43:53,358 INFO L413 NwaCegarLoop]: 1968 mSDtfsCounter, 1402 mSDsluCounter, 1932 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1405 SdHoareTripleChecker+Valid, 3599 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:53,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1405 Valid, 3599 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 657 Invalid, 3 Unknown, 0 Unchecked, 12.2s Time] [2022-11-03 03:43:53,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72614 states. [2022-11-03 03:43:56,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72614 to 72604. [2022-11-03 03:43:56,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72604 states, 46565 states have (on average 1.3229249436271877) internal successors, (61602), 46849 states have internal predecessors, (61602), 21337 states have call successors, (21337), 4701 states have call predecessors, (21337), 4701 states have return successors, (23289), 21085 states have call predecessors, (23289), 21337 states have call successors, (23289) [2022-11-03 03:43:57,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72604 states to 72604 states and 106228 transitions. [2022-11-03 03:43:57,889 INFO L78 Accepts]: Start accepts. Automaton has 72604 states and 106228 transitions. Word has length 223 [2022-11-03 03:43:57,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:43:57,890 INFO L495 AbstractCegarLoop]: Abstraction has 72604 states and 106228 transitions. [2022-11-03 03:43:57,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 03:43:57,890 INFO L276 IsEmpty]: Start isEmpty. Operand 72604 states and 106228 transitions. [2022-11-03 03:43:57,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-11-03 03:43:57,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:57,903 INFO L195 NwaCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 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] [2022-11-03 03:43:57,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 03:43:57,904 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:43:57,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:57,904 INFO L85 PathProgramCache]: Analyzing trace with hash 697966331, now seen corresponding path program 1 times [2022-11-03 03:43:57,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:43:57,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903365951] [2022-11-03 03:43:57,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:57,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:43:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:58,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1172 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2022-11-03 03:43:58,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:43:58,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903365951] [2022-11-03 03:43:58,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903365951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:43:58,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:43:58,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:43:58,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349623381] [2022-11-03 03:43:58,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:43:58,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:43:58,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:43:58,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:43:58,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:43:58,461 INFO L87 Difference]: Start difference. First operand 72604 states and 106228 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 03:44:00,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:02,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:44:04,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:44:13,565 WARN L539 Checker$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 03:44:17,438 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 03:44:18,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:18,839 INFO L93 Difference]: Finished difference Result 177508 states and 259597 transitions. [2022-11-03 03:44:18,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:44:18,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 243 [2022-11-03 03:44:18,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:19,601 INFO L225 Difference]: With dead ends: 177508 [2022-11-03 03:44:19,601 INFO L226 Difference]: Without dead ends: 104939 [2022-11-03 03:44:19,880 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 03:44:19,881 INFO L413 NwaCegarLoop]: 2761 mSDtfsCounter, 1806 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 4427 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:19,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1809 Valid, 4427 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 804 Invalid, 2 Unknown, 0 Unchecked, 16.2s Time] [2022-11-03 03:44:19,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104939 states. [2022-11-03 03:44:24,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104939 to 104905. [2022-11-03 03:44:24,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104905 states, 67420 states have (on average 1.3216107979827945) internal successors, (89103), 67841 states have internal predecessors, (89103), 30670 states have call successors, (30670), 6814 states have call predecessors, (30670), 6814 states have return successors, (33549), 30297 states have call predecessors, (33549), 30670 states have call successors, (33549) [2022-11-03 03:44:25,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104905 states to 104905 states and 153322 transitions. [2022-11-03 03:44:25,363 INFO L78 Accepts]: Start accepts. Automaton has 104905 states and 153322 transitions. Word has length 243 [2022-11-03 03:44:25,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:25,363 INFO L495 AbstractCegarLoop]: Abstraction has 104905 states and 153322 transitions. [2022-11-03 03:44:25,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 03:44:25,364 INFO L276 IsEmpty]: Start isEmpty. Operand 104905 states and 153322 transitions. [2022-11-03 03:44:25,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-11-03 03:44:25,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:25,395 INFO L195 NwaCegarLoop]: trace histogram [22, 17, 17, 17, 17, 17, 17, 4, 4, 3, 3, 3, 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] [2022-11-03 03:44:25,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 03:44:25,395 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:25,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:25,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1743627721, now seen corresponding path program 1 times [2022-11-03 03:44:25,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:44:25,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823388481] [2022-11-03 03:44:25,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:25,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:44:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:25,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1312 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1305 trivial. 0 not checked. [2022-11-03 03:44:25,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:44:25,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823388481] [2022-11-03 03:44:25,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823388481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:25,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:25,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:44:25,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973692642] [2022-11-03 03:44:25,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:25,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:44:25,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:44:25,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:44:25,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:44:25,977 INFO L87 Difference]: Start difference. First operand 104905 states and 153322 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-03 03:44:28,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:30,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:44:32,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:44:34,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:37,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:44:47,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:50,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:53,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:53,191 INFO L93 Difference]: Finished difference Result 256171 states and 374582 transitions. [2022-11-03 03:44:53,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:44:53,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 269 [2022-11-03 03:44:53,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:54,377 INFO L225 Difference]: With dead ends: 256171 [2022-11-03 03:44:54,378 INFO L226 Difference]: Without dead ends: 151797