./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-uvc-uvcvideo.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_c40076e7-24ee-4480-aca0-1f53104df95c/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40076e7-24ee-4480-aca0-1f53104df95c/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_c40076e7-24ee-4480-aca0-1f53104df95c/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40076e7-24ee-4480-aca0-1f53104df95c/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-uvc-uvcvideo.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40076e7-24ee-4480-aca0-1f53104df95c/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_c40076e7-24ee-4480-aca0-1f53104df95c/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 27c97bcf411d26ec272f425e404581082a84d844ce897669cae8d1db38d078c4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 01:43:11,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:43:11,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:43:11,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:43:11,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:43:11,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:43:11,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:43:11,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:43:11,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:43:11,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:43:11,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:43:11,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:43:11,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:43:11,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:43:11,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:43:11,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:43:11,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:43:11,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:43:11,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:43:11,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:43:11,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:43:11,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:43:11,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:43:11,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:43:11,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:43:11,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:43:11,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:43:11,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:43:11,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:43:11,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:43:11,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:43:11,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:43:11,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:43:11,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:43:11,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:43:11,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:43:11,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:43:11,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:43:11,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:43:11,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:43:11,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:43:11,145 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40076e7-24ee-4480-aca0-1f53104df95c/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:43:11,167 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:43:11,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:43:11,168 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:43:11,168 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:43:11,169 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:43:11,169 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:43:11,169 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:43:11,170 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:43:11,170 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:43:11,170 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:43:11,171 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:43:11,171 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:43:11,171 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:43:11,171 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:43:11,172 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:43:11,172 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:43:11,172 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:43:11,172 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:43:11,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:43:11,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:43:11,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:43:11,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:43:11,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:43:11,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:43:11,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:43:11,175 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:43:11,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:43:11,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:43:11,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:43:11,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:43:11,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:43:11,177 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:43:11,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:43:11,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:43:11,177 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:43:11,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:43:11,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:43:11,178 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:43:11,179 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_c40076e7-24ee-4480-aca0-1f53104df95c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40076e7-24ee-4480-aca0-1f53104df95c/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27c97bcf411d26ec272f425e404581082a84d844ce897669cae8d1db38d078c4 [2022-11-03 01:43:11,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:43:11,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:43:11,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:43:11,492 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:43:11,493 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:43:11,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40076e7-24ee-4480-aca0-1f53104df95c/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2022-11-03 01:43:11,563 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40076e7-24ee-4480-aca0-1f53104df95c/bin/utaipan-7li7fVZpFI/data/6fd7d7103/01e07e1fed214d9488b843bd01b99681/FLAG76bca0c11 [2022-11-03 01:43:12,672 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:43:12,673 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40076e7-24ee-4480-aca0-1f53104df95c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2022-11-03 01:43:12,758 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40076e7-24ee-4480-aca0-1f53104df95c/bin/utaipan-7li7fVZpFI/data/6fd7d7103/01e07e1fed214d9488b843bd01b99681/FLAG76bca0c11 [2022-11-03 01:43:12,911 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40076e7-24ee-4480-aca0-1f53104df95c/bin/utaipan-7li7fVZpFI/data/6fd7d7103/01e07e1fed214d9488b843bd01b99681 [2022-11-03 01:43:12,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:43:12,915 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:43:12,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:43:12,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:43:12,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:43:12,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:43:12" (1/1) ... [2022-11-03 01:43:12,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5687b4eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:12, skipping insertion in model container [2022-11-03 01:43:12,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:43:12" (1/1) ... [2022-11-03 01:43:12,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:43:13,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:43:18,632 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_c40076e7-24ee-4480-aca0-1f53104df95c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[624921,624934] [2022-11-03 01:43:18,635 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_c40076e7-24ee-4480-aca0-1f53104df95c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[625066,625079] [2022-11-03 01:43:18,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:43:18,802 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:43:19,525 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_c40076e7-24ee-4480-aca0-1f53104df95c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[624921,624934] [2022-11-03 01:43:19,525 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_c40076e7-24ee-4480-aca0-1f53104df95c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[625066,625079] [2022-11-03 01:43:19,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:43:19,860 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:43:19,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:19 WrapperNode [2022-11-03 01:43:19,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:43:19,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:43:19,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:43:19,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:43:19,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:19" (1/1) ... [2022-11-03 01:43:20,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:19" (1/1) ... [2022-11-03 01:43:20,494 INFO L138 Inliner]: procedures = 618, calls = 8979, calls flagged for inlining = 319, calls inlined = 245, statements flattened = 13575 [2022-11-03 01:43:20,495 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:43:20,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:43:20,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:43:20,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:43:20,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:19" (1/1) ... [2022-11-03 01:43:20,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:19" (1/1) ... [2022-11-03 01:43:20,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:19" (1/1) ... [2022-11-03 01:43:20,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:19" (1/1) ... [2022-11-03 01:43:20,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:19" (1/1) ... [2022-11-03 01:43:20,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:19" (1/1) ... [2022-11-03 01:43:21,054 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:19" (1/1) ... [2022-11-03 01:43:21,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:19" (1/1) ... [2022-11-03 01:43:21,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:43:21,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:43:21,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:43:21,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:43:21,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:19" (1/1) ... [2022-11-03 01:43:21,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:43:21,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40076e7-24ee-4480-aca0-1f53104df95c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:43:21,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40076e7-24ee-4480-aca0-1f53104df95c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:43:21,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40076e7-24ee-4480-aca0-1f53104df95c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:43:21,236 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 01:43:21,237 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 01:43:21,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 01:43:21,237 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 01:43:21,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:43:21,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:43:21,237 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_read [2022-11-03 01:43:21,238 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_read [2022-11-03 01:43:21,238 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_release [2022-11-03 01:43:21,238 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_release [2022-11-03 01:43:21,238 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_find_control [2022-11-03 01:43:21,238 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_find_control [2022-11-03 01:43:21,238 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2022-11-03 01:43:21,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2022-11-03 01:43:21,239 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_ctrl_add_mapping [2022-11-03 01:43:21,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_ctrl_add_mapping [2022-11-03 01:43:21,239 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_finish [2022-11-03 01:43:21,239 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_finish [2022-11-03 01:43:21,239 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-03 01:43:21,239 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-03 01:43:21,240 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-11-03 01:43:21,240 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_wait_prepare [2022-11-03 01:43:21,240 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_wait_prepare [2022-11-03 01:43:21,240 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_alloc_urb_buffers [2022-11-03 01:43:21,241 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_alloc_urb_buffers [2022-11-03 01:43:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_reset [2022-11-03 01:43:21,241 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_reset [2022-11-03 01:43:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure usb_match_one_id [2022-11-03 01:43:21,241 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_match_one_id [2022-11-03 01:43:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 01:43:21,242 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 01:43:21,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_59 [2022-11-03 01:43:21,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_59 [2022-11-03 01:43:21,242 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 01:43:21,242 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_ts [2022-11-03 01:43:21,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_ts [2022-11-03 01:43:21,243 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_entity_by_id [2022-11-03 01:43:21,243 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_entity_by_id [2022-11-03 01:43:21,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 01:43:21,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 01:43:21,244 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-03 01:43:21,244 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-03 01:43:21,244 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 01:43:21,244 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 01:43:21,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 01:43:21,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 01:43:21,245 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 01:43:21,246 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 01:43:21,246 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-03 01:43:21,246 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-03 01:43:21,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:43:21,247 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2022-11-03 01:43:21,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2022-11-03 01:43:21,247 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_query_v4l2_ctrl [2022-11-03 01:43:21,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_query_v4l2_ctrl [2022-11-03 01:43:21,247 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_data [2022-11-03 01:43:21,247 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_data [2022-11-03 01:43:21,248 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 01:43:21,248 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 01:43:21,248 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-03 01:43:21,249 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-03 01:43:21,249 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_ioctl [2022-11-03 01:43:21,249 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_ioctl [2022-11-03 01:43:21,249 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 01:43:21,249 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 01:43:21,249 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_populate_cache [2022-11-03 01:43:21,250 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_populate_cache [2022-11-03 01:43:21,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 01:43:21,250 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_add_info [2022-11-03 01:43:21,250 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_add_info [2022-11-03 01:43:21,250 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 01:43:21,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 01:43:21,250 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_buffer_done [2022-11-03 01:43:21,251 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_buffer_done [2022-11-03 01:43:21,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 01:43:21,252 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_query_ctrl [2022-11-03 01:43:21,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_query_ctrl [2022-11-03 01:43:21,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 01:43:21,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 01:43:21,253 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_wait_finish [2022-11-03 01:43:21,253 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_wait_finish [2022-11-03 01:43:21,253 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_reset_resume [2022-11-03 01:43:21,253 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_reset_resume [2022-11-03 01:43:21,253 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-11-03 01:43:21,254 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-11-03 01:43:21,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:43:21,254 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2022-11-03 01:43:21,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2022-11-03 01:43:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-03 01:43:21,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-03 01:43:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 01:43:21,255 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 01:43:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 01:43:21,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 01:43:21,256 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-03 01:43:21,256 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-03 01:43:21,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 01:43:21,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 01:43:21,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 01:43:21,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 01:43:21,257 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_scan_chain_forward [2022-11-03 01:43:21,257 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_scan_chain_forward [2022-11-03 01:43:21,257 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2022-11-03 01:43:21,257 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2022-11-03 01:43:21,257 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_commit_video [2022-11-03 01:43:21,258 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_commit_video [2022-11-03 01:43:21,258 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-11-03 01:43:21,258 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 01:43:21,259 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 01:43:21,261 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2022-11-03 01:43:21,262 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2022-11-03 01:43:21,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:43:21,263 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-03 01:43:21,264 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-03 01:43:21,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 01:43:21,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 01:43:21,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-03 01:43:21,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-11-03 01:43:21,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 01:43:21,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 01:43:21,272 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_ctrl_get [2022-11-03 01:43:21,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_ctrl_get [2022-11-03 01:43:21,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:43:21,272 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_find_endpoint [2022-11-03 01:43:21,272 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_find_endpoint [2022-11-03 01:43:21,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 01:43:21,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 01:43:21,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:43:21,273 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 01:43:21,273 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_endpoint_max_bpi [2022-11-03 01:43:21,273 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_endpoint_max_bpi [2022-11-03 01:43:21,273 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:43:21,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:43:21,273 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_set_video_ctrl [2022-11-03 01:43:21,274 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_set_video_ctrl [2022-11-03 01:43:21,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-03 01:43:21,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-03 01:43:21,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-03 01:43:21,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-03 01:43:21,274 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-03 01:43:21,274 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-03 01:43:21,275 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_delete [2022-11-03 01:43:21,275 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_delete [2022-11-03 01:43:21,275 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_commit_entity [2022-11-03 01:43:21,275 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_commit_entity [2022-11-03 01:43:21,275 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_free_urb_buffers [2022-11-03 01:43:21,275 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_free_urb_buffers [2022-11-03 01:43:21,275 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-03 01:43:21,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-03 01:43:21,276 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_del_event [2022-11-03 01:43:21,276 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_del_event [2022-11-03 01:43:21,276 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2022-11-03 01:43:21,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2022-11-03 01:43:21,276 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_open [2022-11-03 01:43:21,276 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_open [2022-11-03 01:43:21,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:43:21,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:43:21,277 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-03 01:43:21,277 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-03 01:43:21,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:43:21,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:43:21,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 01:43:21,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 01:43:21,278 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-03 01:43:21,278 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-03 01:43:21,278 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_fill_event [2022-11-03 01:43:21,278 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_fill_event [2022-11-03 01:43:21,279 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-03 01:43:21,279 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-03 01:43:21,279 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_plane_payload [2022-11-03 01:43:21,279 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_plane_payload [2022-11-03 01:43:21,279 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-11-03 01:43:21,279 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-11-03 01:43:21,279 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-03 01:43:21,280 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-03 01:43:21,280 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-03 01:43:21,280 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-03 01:43:21,280 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-03 01:43:21,280 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-03 01:43:21,280 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_debugfs_cleanup [2022-11-03 01:43:21,280 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_debugfs_cleanup [2022-11-03 01:43:21,281 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2022-11-03 01:43:21,281 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2022-11-03 01:43:21,281 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 01:43:21,281 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 01:43:21,281 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_queue_fh [2022-11-03 01:43:21,281 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_queue_fh [2022-11-03 01:43:21,281 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_init_video [2022-11-03 01:43:21,282 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_init_video [2022-11-03 01:43:21,282 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_status_start [2022-11-03 01:43:21,282 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_status_start [2022-11-03 01:43:21,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 01:43:21,282 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 01:43:21,282 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2022-11-03 01:43:21,282 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2022-11-03 01:43:21,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_5_4 [2022-11-03 01:43:21,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_5_4 [2022-11-03 01:43:21,283 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2022-11-03 01:43:21,283 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2022-11-03 01:43:21,283 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_find_control [2022-11-03 01:43:21,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_find_control [2022-11-03 01:43:21,283 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_cleanup [2022-11-03 01:43:21,283 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_cleanup [2022-11-03 01:43:21,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-03 01:43:21,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-03 01:43:21,284 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-03 01:43:21,284 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-03 01:43:21,284 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2022-11-03 01:43:21,284 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2022-11-03 01:43:21,284 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_prepare [2022-11-03 01:43:21,285 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_prepare [2022-11-03 01:43:21,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_59___0 [2022-11-03 01:43:21,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_59___0 [2022-11-03 01:43:21,285 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_set_zoom [2022-11-03 01:43:21,285 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_set_zoom [2022-11-03 01:43:21,285 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_test_bit [2022-11-03 01:43:21,285 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_test_bit [2022-11-03 01:43:21,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:43:21,286 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 01:43:21,286 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 01:43:21,286 INFO L130 BoogieDeclarations]: Found specification of procedure copy_in_user [2022-11-03 01:43:21,286 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_in_user [2022-11-03 01:43:21,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:43:21,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uvc_cleanup_10_2 [2022-11-03 01:43:21,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uvc_cleanup_10_2 [2022-11-03 01:43:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_status_stop [2022-11-03 01:43:21,287 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_status_stop [2022-11-03 01:43:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_alloc_entity [2022-11-03 01:43:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_alloc_entity [2022-11-03 01:43:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-03 01:43:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-03 01:43:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_query_ctrl [2022-11-03 01:43:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_query_ctrl [2022-11-03 01:43:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:43:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-03 01:43:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-03 01:43:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-03 01:43:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-03 01:43:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 01:43:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 01:43:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_dismiss_privileges [2022-11-03 01:43:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_dismiss_privileges [2022-11-03 01:43:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 01:43:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 01:43:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irqlock_of_uvc_video_queue [2022-11-03 01:43:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irqlock_of_uvc_video_queue [2022-11-03 01:43:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-03 01:43:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-03 01:43:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~__u8~0~X~$Pointer$~TO~~__s32~0 [2022-11-03 01:43:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~__u8~0~X~$Pointer$~TO~~__s32~0 [2022-11-03 01:43:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 01:43:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 01:43:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_host_sof [2022-11-03 01:43:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_host_sof [2022-11-03 01:43:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 01:43:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 01:43:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 01:43:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 01:43:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uvc_clock [2022-11-03 01:43:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uvc_clock [2022-11-03 01:43:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure compat_alloc_user_space [2022-11-03 01:43:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_alloc_user_space [2022-11-03 01:43:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_plane_size [2022-11-03 01:43:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_plane_size [2022-11-03 01:43:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2022-11-03 01:43:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2022-11-03 01:43:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_print_terms [2022-11-03 01:43:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_print_terms [2022-11-03 01:43:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-03 01:43:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-03 01:43:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_has_privileges [2022-11-03 01:43:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_has_privileges [2022-11-03 01:43:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_enable [2022-11-03 01:43:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_enable [2022-11-03 01:43:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 01:43:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 01:43:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:43:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 01:43:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 01:43:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-11-03 01:43:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-11-03 01:43:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_init [2022-11-03 01:43:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_init [2022-11-03 01:43:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 01:43:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 01:43:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_entity_match_guid [2022-11-03 01:43:21,350 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_entity_match_guid [2022-11-03 01:43:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 01:43:21,350 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 01:43:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_uninit_video [2022-11-03 01:43:21,350 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_uninit_video [2022-11-03 01:43:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_debugfs_cleanup_stream [2022-11-03 01:43:21,350 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_debugfs_cleanup_stream [2022-11-03 01:43:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-11-03 01:43:21,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-11-03 01:43:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_queue_enable [2022-11-03 01:43:21,350 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_queue_enable [2022-11-03 01:43:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_get_video_ctrl [2022-11-03 01:43:21,350 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_get_video_ctrl [2022-11-03 01:43:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-11-03 01:43:21,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-11-03 01:43:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-03 01:43:21,351 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-03 01:43:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2022-11-03 01:43:21,351 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2022-11-03 01:43:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2022-11-03 01:43:21,351 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2022-11-03 01:43:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-03 01:43:21,351 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-03 01:43:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_queue [2022-11-03 01:43:21,351 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_queue [2022-11-03 01:43:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_resume [2022-11-03 01:43:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_resume [2022-11-03 01:43:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 01:43:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 01:43:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_unregister_video [2022-11-03 01:43:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_unregister_video [2022-11-03 01:43:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intf [2022-11-03 01:43:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intf [2022-11-03 01:43:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_resume [2022-11-03 01:43:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_resume [2022-11-03 01:43:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2022-11-03 01:43:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2022-11-03 01:43:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_cleanup [2022-11-03 01:43:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_cleanup [2022-11-03 01:43:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_queue_streaming [2022-11-03 01:43:21,353 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_queue_streaming [2022-11-03 01:43:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_disconnect [2022-11-03 01:43:21,353 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_disconnect [2022-11-03 01:43:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:43:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2022-11-03 01:43:21,353 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2022-11-03 01:43:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_get_zoom [2022-11-03 01:43:21,353 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_get_zoom [2022-11-03 01:43:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 01:43:21,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 01:43:22,579 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:43:22,583 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:43:22,760 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 01:43:23,120 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11812: SUMMARY for call __copy_to_user_nocheck_#t~ret1078#1 := copy_user_generic(__copy_to_user_nocheck_~dst#1.base, __copy_to_user_nocheck_~dst#1.offset, __copy_to_user_nocheck_~src#1.base, __copy_to_user_nocheck_~src#1.offset, __copy_to_user_nocheck_~size#1); srcloc: null [2022-11-03 01:43:23,120 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849: assume 0 != __copy_to_user_nocheck_~tmp___1~14#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 01:43:23,120 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849: assume !(0 != __copy_to_user_nocheck_~tmp___1~14#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 01:43:23,120 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume 10 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-03 01:43:23,120 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume !(10 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-03 01:43:23,120 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume 16 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-03 01:43:23,175 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume !(16 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-03 01:43:23,175 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume 4 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-03 01:43:23,175 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume !(4 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-03 01:43:23,175 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume 8 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-03 01:43:23,175 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume !(8 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-03 01:43:23,175 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11833: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1076#1 && __copy_to_user_nocheck_#t~ret1076#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~24#1 := __copy_to_user_nocheck_#t~ret1076#1;havoc __copy_to_user_nocheck_#t~ret1076#1; [2022-11-03 01:43:23,175 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume 2 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-03 01:43:23,175 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume !(2 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-03 01:43:23,176 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11805: SUMMARY for call __copy_to_user_nocheck_#t~ret1076#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0); srcloc: null [2022-11-03 01:43:23,176 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11809: SUMMARY for call __copy_to_user_nocheck_#t~ret1077#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0); srcloc: null [2022-11-03 01:43:23,176 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11797: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 01:43:23,176 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11859: __copy_to_user_nocheck_~tmp___2~10#1 := __copy_to_user_nocheck_#t~ret1078#1;havoc __copy_to_user_nocheck_#t~ret1078#1;__copy_to_user_nocheck_#res#1 := (if __copy_to_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 - 4294967296); [2022-11-03 01:43:23,176 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11801: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 01:43:23,176 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11789: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 01:43:23,176 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11793: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 01:43:23,177 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-03 01:43:23,177 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-03 01:43:23,177 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11847: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1077#1 && __copy_to_user_nocheck_#t~ret1077#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~14#1 := __copy_to_user_nocheck_#t~ret1077#1;havoc __copy_to_user_nocheck_#t~ret1077#1; [2022-11-03 01:43:23,177 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835: assume 0 != __copy_to_user_nocheck_~tmp___0~24#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 01:43:23,177 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835: assume !(0 != __copy_to_user_nocheck_~tmp___0~24#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 01:43:26,525 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11700: SUMMARY for call __copy_from_user_nocheck_#t~ret1072#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0); srcloc: null [2022-11-03 01:43:26,525 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11692: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 01:43:26,525 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11696: SUMMARY for call __copy_from_user_nocheck_#t~ret1071#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0); srcloc: null [2022-11-03 01:43:26,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11729: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1071#1 && __copy_from_user_nocheck_#t~ret1071#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~23#1 := __copy_from_user_nocheck_#t~ret1071#1;havoc __copy_from_user_nocheck_#t~ret1071#1; [2022-11-03 01:43:26,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11684: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 01:43:26,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746: assume 0 != __copy_from_user_nocheck_~tmp___1~13#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 01:43:26,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746: assume !(0 != __copy_from_user_nocheck_~tmp___1~13#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 01:43:26,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11688: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 01:43:26,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11680: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 01:43:26,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume 0 != __copy_from_user_nocheck_~tmp___0~23#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 01:43:26,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume !(0 != __copy_from_user_nocheck_~tmp___0~23#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 01:43:26,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11756: __copy_from_user_nocheck_~tmp___2~9#1 := __copy_from_user_nocheck_#t~ret1073#1;havoc __copy_from_user_nocheck_#t~ret1073#1;__copy_from_user_nocheck_#res#1 := (if __copy_from_user_nocheck_~tmp___2~9#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~9#1 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~9#1 % 18446744073709551616 % 4294967296 - 4294967296); [2022-11-03 01:43:26,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-03 01:43:26,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-03 01:43:26,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11744: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1072#1 && __copy_from_user_nocheck_#t~ret1072#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~13#1 := __copy_from_user_nocheck_#t~ret1072#1;havoc __copy_from_user_nocheck_#t~ret1072#1; [2022-11-03 01:43:26,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume 16 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-03 01:43:26,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume !(16 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-03 01:43:26,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11703: SUMMARY for call __copy_from_user_nocheck_#t~ret1073#1 := copy_user_generic(__copy_from_user_nocheck_~dst#1.base, __copy_from_user_nocheck_~dst#1.offset, __copy_from_user_nocheck_~src#1.base, __copy_from_user_nocheck_~src#1.offset, __copy_from_user_nocheck_~size#1); srcloc: null [2022-11-03 01:43:26,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume 8 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-03 01:43:26,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume !(8 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-03 01:43:26,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume 10 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-03 01:43:26,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume !(10 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-03 01:43:26,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume 2 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-03 01:43:26,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume !(2 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-03 01:43:26,528 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume 4 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-03 01:43:26,528 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume !(4 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-03 01:46:34,720 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 01:46:34,900 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:46:38,837 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:46:38,837 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-03 01:46:38,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:46:38 BoogieIcfgContainer [2022-11-03 01:46:38,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:46:38,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:46:38,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:46:38,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:46:38,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:43:12" (1/3) ... [2022-11-03 01:46:38,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520d58f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:46:38, skipping insertion in model container [2022-11-03 01:46:38,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:19" (2/3) ... [2022-11-03 01:46:38,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520d58f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:46:38, skipping insertion in model container [2022-11-03 01:46:38,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:46:38" (3/3) ... [2022-11-03 01:46:38,860 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2022-11-03 01:46:38,875 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:46:38,875 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:46:38,968 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:46:38,974 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;@41698576, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:46:38,974 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:46:38,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 2331 states, 1493 states have (on average 1.3670462156731413) internal successors, (2041), 1511 states have internal predecessors, (2041), 680 states have call successors, (680), 158 states have call predecessors, (680), 157 states have return successors, (671), 665 states have call predecessors, (671), 671 states have call successors, (671) [2022-11-03 01:46:39,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-11-03 01:46:39,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:46:39,014 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:46:39,015 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:46:39,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:46:39,020 INFO L85 PathProgramCache]: Analyzing trace with hash 2049443887, now seen corresponding path program 1 times [2022-11-03 01:46:39,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:46:39,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617632824] [2022-11-03 01:46:39,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:39,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:46:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:46:41,073 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3782 trivial. 0 not checked. [2022-11-03 01:46:41,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:46:41,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617632824] [2022-11-03 01:46:41,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617632824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:46:41,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:46:41,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:46:41,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276382693] [2022-11-03 01:46:41,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:46:41,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:46:41,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:46:41,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:46:41,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:46:41,136 INFO L87 Difference]: Start difference. First operand has 2331 states, 1493 states have (on average 1.3670462156731413) internal successors, (2041), 1511 states have internal predecessors, (2041), 680 states have call successors, (680), 158 states have call predecessors, (680), 157 states have return successors, (671), 665 states have call predecessors, (671), 671 states have call successors, (671) 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, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-03 01:46:43,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:48,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:46:50,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:53,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:58,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:46:58,096 INFO L93 Difference]: Finished difference Result 6719 states and 9886 transitions. [2022-11-03 01:46:58,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:46:58,103 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, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 336 [2022-11-03 01:46:58,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:46:58,149 INFO L225 Difference]: With dead ends: 6719 [2022-11-03 01:46:58,149 INFO L226 Difference]: Without dead ends: 4388 [2022-11-03 01:46:58,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:46:58,170 INFO L413 NwaCegarLoop]: 3464 mSDtfsCounter, 3082 mSDsluCounter, 3347 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3082 SdHoareTripleChecker+Valid, 6289 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:46:58,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3082 Valid, 6289 Invalid, 1114 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1098 Invalid, 3 Unknown, 0 Unchecked, 16.5s Time] [2022-11-03 01:46:58,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4388 states. [2022-11-03 01:46:58,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4388 to 4384. [2022-11-03 01:46:58,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4384 states, 2846 states have (on average 1.365073787772312) internal successors, (3885), 2882 states have internal predecessors, (3885), 1233 states have call successors, (1233), 304 states have call predecessors, (1233), 304 states have return successors, (1233), 1219 states have call predecessors, (1233), 1233 states have call successors, (1233) [2022-11-03 01:46:58,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4384 states to 4384 states and 6351 transitions. [2022-11-03 01:46:58,461 INFO L78 Accepts]: Start accepts. Automaton has 4384 states and 6351 transitions. Word has length 336 [2022-11-03 01:46:58,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:46:58,468 INFO L495 AbstractCegarLoop]: Abstraction has 4384 states and 6351 transitions. [2022-11-03 01:46:58,469 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, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-03 01:46:58,469 INFO L276 IsEmpty]: Start isEmpty. Operand 4384 states and 6351 transitions. [2022-11-03 01:46:58,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-11-03 01:46:58,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:46:58,488 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:46:58,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:46:58,488 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:46:58,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:46:58,489 INFO L85 PathProgramCache]: Analyzing trace with hash 185984472, now seen corresponding path program 1 times [2022-11-03 01:46:58,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:46:58,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144889934] [2022-11-03 01:46:58,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:58,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:46:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:46:59,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3782 trivial. 0 not checked. [2022-11-03 01:46:59,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:46:59,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144889934] [2022-11-03 01:46:59,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144889934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:46:59,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:46:59,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:46:59,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439597974] [2022-11-03 01:46:59,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:46:59,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:46:59,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:46:59,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:46:59,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:46:59,787 INFO L87 Difference]: Start difference. First operand 4384 states and 6351 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 01:47:02,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:04,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:07,726 WARN L539 Checker$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 01:47:12,434 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 01:47:15,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:47:15,751 INFO L93 Difference]: Finished difference Result 11139 states and 16011 transitions. [2022-11-03 01:47:15,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:47:15,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 358 [2022-11-03 01:47:15,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:47:15,793 INFO L225 Difference]: With dead ends: 11139 [2022-11-03 01:47:15,793 INFO L226 Difference]: Without dead ends: 6818 [2022-11-03 01:47:15,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:47:15,812 INFO L413 NwaCegarLoop]: 3153 mSDtfsCounter, 1720 mSDsluCounter, 3280 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 16 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 5916 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-11-03 01:47:15,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1720 Valid, 5916 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1093 Invalid, 3 Unknown, 0 Unchecked, 15.6s Time] [2022-11-03 01:47:15,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6818 states. [2022-11-03 01:47:16,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6818 to 6812. [2022-11-03 01:47:16,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6812 states, 4359 states have (on average 1.3464097270016058) internal successors, (5869), 4411 states have internal predecessors, (5869), 1929 states have call successors, (1929), 523 states have call predecessors, (1929), 523 states have return successors, (1929), 1907 states have call predecessors, (1929), 1929 states have call successors, (1929) [2022-11-03 01:47:16,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6812 states to 6812 states and 9727 transitions. [2022-11-03 01:47:16,115 INFO L78 Accepts]: Start accepts. Automaton has 6812 states and 9727 transitions. Word has length 358 [2022-11-03 01:47:16,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:47:16,121 INFO L495 AbstractCegarLoop]: Abstraction has 6812 states and 9727 transitions. [2022-11-03 01:47:16,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 01:47:16,121 INFO L276 IsEmpty]: Start isEmpty. Operand 6812 states and 9727 transitions. [2022-11-03 01:47:16,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-11-03 01:47:16,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:47:16,131 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:47:16,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:47:16,131 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:47:16,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:47:16,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1000917766, now seen corresponding path program 1 times [2022-11-03 01:47:16,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:47:16,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587700964] [2022-11-03 01:47:16,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:16,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:47:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:17,422 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3782 trivial. 0 not checked. [2022-11-03 01:47:17,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:47:17,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587700964] [2022-11-03 01:47:17,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587700964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:47:17,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:47:17,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:47:17,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036084997] [2022-11-03 01:47:17,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:47:17,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:47:17,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:47:17,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:47:17,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:47:17,425 INFO L87 Difference]: Start difference. First operand 6812 states and 9727 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 01:47:19,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:21,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:24,162 WARN L539 Checker$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 01:47:27,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:30,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:36,447 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 01:47:36,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:47:36,681 INFO L93 Difference]: Finished difference Result 18682 states and 26696 transitions. [2022-11-03 01:47:36,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:47:36,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 355 [2022-11-03 01:47:36,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:47:36,742 INFO L225 Difference]: With dead ends: 18682 [2022-11-03 01:47:36,742 INFO L226 Difference]: Without dead ends: 11933 [2022-11-03 01:47:36,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:47:36,769 INFO L413 NwaCegarLoop]: 3456 mSDtfsCounter, 2761 mSDsluCounter, 3266 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 13 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2765 SdHoareTripleChecker+Valid, 6217 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:47:36,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2765 Valid, 6217 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1124 Invalid, 4 Unknown, 0 Unchecked, 18.8s Time] [2022-11-03 01:47:36,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11933 states. [2022-11-03 01:47:37,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11933 to 11915. [2022-11-03 01:47:37,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11915 states, 7690 states have (on average 1.3500650195058517) internal successors, (10382), 7796 states have internal predecessors, (10382), 3305 states have call successors, (3305), 919 states have call predecessors, (3305), 919 states have return successors, (3315), 3253 states have call predecessors, (3315), 3305 states have call successors, (3315) [2022-11-03 01:47:37,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11915 states to 11915 states and 17002 transitions. [2022-11-03 01:47:37,333 INFO L78 Accepts]: Start accepts. Automaton has 11915 states and 17002 transitions. Word has length 355 [2022-11-03 01:47:37,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:47:37,333 INFO L495 AbstractCegarLoop]: Abstraction has 11915 states and 17002 transitions. [2022-11-03 01:47:37,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 01:47:37,335 INFO L276 IsEmpty]: Start isEmpty. Operand 11915 states and 17002 transitions. [2022-11-03 01:47:37,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-11-03 01:47:37,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:47:37,346 INFO L195 NwaCegarLoop]: trace histogram [33, 31, 31, 31, 31, 31, 31, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:47:37,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:47:37,347 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:47:37,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:47:37,348 INFO L85 PathProgramCache]: Analyzing trace with hash 856368349, now seen corresponding path program 1 times [2022-11-03 01:47:37,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:47:37,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496700605] [2022-11-03 01:47:37,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:37,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:47:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:38,383 INFO L134 CoverageAnalysis]: Checked inductivity of 3849 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3846 trivial. 0 not checked. [2022-11-03 01:47:38,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:47:38,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496700605] [2022-11-03 01:47:38,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496700605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:47:38,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:47:38,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:47:38,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553747097] [2022-11-03 01:47:38,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:47:38,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:47:38,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:47:38,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:47:38,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:47:38,387 INFO L87 Difference]: Start difference. First operand 11915 states and 17002 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-03 01:47:40,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:43,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:47:45,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:49,740 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 01:47:53,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:47:53,413 INFO L93 Difference]: Finished difference Result 26312 states and 37457 transitions. [2022-11-03 01:47:53,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:47:53,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 360 [2022-11-03 01:47:53,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:47:53,479 INFO L225 Difference]: With dead ends: 26312 [2022-11-03 01:47:53,479 INFO L226 Difference]: Without dead ends: 14460 [2022-11-03 01:47:53,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:47:53,511 INFO L413 NwaCegarLoop]: 3366 mSDtfsCounter, 2612 mSDsluCounter, 3230 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 14 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2614 SdHoareTripleChecker+Valid, 6088 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:47:53,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2614 Valid, 6088 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1118 Invalid, 3 Unknown, 0 Unchecked, 14.4s Time] [2022-11-03 01:47:53,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14460 states. [2022-11-03 01:47:54,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14460 to 14455. [2022-11-03 01:47:54,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14455 states, 9356 states have (on average 1.3466224882428388) internal successors, (12599), 9482 states have internal predecessors, (12599), 3952 states have call successors, (3952), 1146 states have call predecessors, (3952), 1146 states have return successors, (3965), 3890 states have call predecessors, (3965), 3952 states have call successors, (3965) [2022-11-03 01:47:54,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14455 states to 14455 states and 20516 transitions. [2022-11-03 01:47:54,135 INFO L78 Accepts]: Start accepts. Automaton has 14455 states and 20516 transitions. Word has length 360 [2022-11-03 01:47:54,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:47:54,136 INFO L495 AbstractCegarLoop]: Abstraction has 14455 states and 20516 transitions. [2022-11-03 01:47:54,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-03 01:47:54,136 INFO L276 IsEmpty]: Start isEmpty. Operand 14455 states and 20516 transitions. [2022-11-03 01:47:54,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2022-11-03 01:47:54,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:47:54,147 INFO L195 NwaCegarLoop]: trace histogram [33, 31, 31, 31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:47:54,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:47:54,147 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:47:54,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:47:54,148 INFO L85 PathProgramCache]: Analyzing trace with hash -219147430, now seen corresponding path program 1 times [2022-11-03 01:47:54,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:47:54,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267065195] [2022-11-03 01:47:54,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:54,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:47:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:55,126 INFO L134 CoverageAnalysis]: Checked inductivity of 3855 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3846 trivial. 0 not checked. [2022-11-03 01:47:55,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:47:55,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267065195] [2022-11-03 01:47:55,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267065195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:47:55,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:47:55,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:47:55,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825785753] [2022-11-03 01:47:55,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:47:55,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:47:55,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:47:55,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:47:55,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:47:55,131 INFO L87 Difference]: Start difference. First operand 14455 states and 20516 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-03 01:47:57,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:05,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:10,667 WARN L539 Checker$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 01:48:10,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:10,931 INFO L93 Difference]: Finished difference Result 30888 states and 43645 transitions. [2022-11-03 01:48:10,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:48:10,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 378 [2022-11-03 01:48:10,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:11,002 INFO L225 Difference]: With dead ends: 30888 [2022-11-03 01:48:11,002 INFO L226 Difference]: Without dead ends: 16496 [2022-11-03 01:48:11,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:48:11,047 INFO L413 NwaCegarLoop]: 3712 mSDtfsCounter, 1715 mSDsluCounter, 3308 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 6497 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:11,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1715 Valid, 6497 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1218 Invalid, 3 Unknown, 0 Unchecked, 15.1s Time] [2022-11-03 01:48:11,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16496 states. [2022-11-03 01:48:11,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16496 to 16490. [2022-11-03 01:48:11,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16490 states, 10577 states have (on average 1.3348775645268034) internal successors, (14119), 10710 states have internal predecessors, (14119), 4538 states have call successors, (4538), 1374 states have call predecessors, (4538), 1374 states have return successors, (4551), 4469 states have call predecessors, (4551), 4538 states have call successors, (4551) [2022-11-03 01:48:11,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16490 states to 16490 states and 23208 transitions. [2022-11-03 01:48:11,791 INFO L78 Accepts]: Start accepts. Automaton has 16490 states and 23208 transitions. Word has length 378 [2022-11-03 01:48:11,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:11,792 INFO L495 AbstractCegarLoop]: Abstraction has 16490 states and 23208 transitions. [2022-11-03 01:48:11,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-03 01:48:11,793 INFO L276 IsEmpty]: Start isEmpty. Operand 16490 states and 23208 transitions. [2022-11-03 01:48:11,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2022-11-03 01:48:11,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:11,809 INFO L195 NwaCegarLoop]: trace histogram [37, 32, 32, 32, 32, 32, 32, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:11,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:48:11,810 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:48:11,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:11,810 INFO L85 PathProgramCache]: Analyzing trace with hash 2119437669, now seen corresponding path program 1 times [2022-11-03 01:48:11,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:11,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946217013] [2022-11-03 01:48:11,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:11,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:12,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:13,249 INFO L134 CoverageAnalysis]: Checked inductivity of 4349 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4340 trivial. 0 not checked. [2022-11-03 01:48:13,250 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:13,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946217013] [2022-11-03 01:48:13,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946217013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:48:13,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:48:13,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:48:13,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120144971] [2022-11-03 01:48:13,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:48:13,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:48:13,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:13,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:48:13,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:48:13,253 INFO L87 Difference]: Start difference. First operand 16490 states and 23208 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-03 01:48:15,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:21,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:23,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:48:26,980 WARN L539 Checker$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 01:48:30,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:32,802 WARN L539 Checker$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 01:48:41,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:48:45,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:48:46,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:46,041 INFO L93 Difference]: Finished difference Result 61982 states and 87428 transitions. [2022-11-03 01:48:46,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:48:46,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 434 [2022-11-03 01:48:46,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:46,257 INFO L225 Difference]: With dead ends: 61982 [2022-11-03 01:48:46,257 INFO L226 Difference]: Without dead ends: 46089 [2022-11-03 01:48:46,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:48:46,318 INFO L413 NwaCegarLoop]: 4490 mSDtfsCounter, 9805 mSDsluCounter, 8353 mSDsCounter, 0 mSdLazyCounter, 1855 mSolverCounterSat, 2471 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9807 SdHoareTripleChecker+Valid, 11647 SdHoareTripleChecker+Invalid, 4332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2471 IncrementalHoareTripleChecker+Valid, 1855 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:46,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9807 Valid, 11647 Invalid, 4332 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2471 Valid, 1855 Invalid, 6 Unknown, 0 Unchecked, 31.1s Time] [2022-11-03 01:48:46,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46089 states. [2022-11-03 01:48:48,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46089 to 46067. [2022-11-03 01:48:48,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46067 states, 29690 states have (on average 1.3426069383630852) internal successors, (39862), 30034 states have internal predecessors, (39862), 12540 states have call successors, (12540), 3835 states have call predecessors, (12540), 3836 states have return successors, (12581), 12371 states have call predecessors, (12581), 12540 states have call successors, (12581) [2022-11-03 01:48:49,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46067 states to 46067 states and 64983 transitions. [2022-11-03 01:48:49,077 INFO L78 Accepts]: Start accepts. Automaton has 46067 states and 64983 transitions. Word has length 434 [2022-11-03 01:48:49,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:49,078 INFO L495 AbstractCegarLoop]: Abstraction has 46067 states and 64983 transitions. [2022-11-03 01:48:49,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-03 01:48:49,079 INFO L276 IsEmpty]: Start isEmpty. Operand 46067 states and 64983 transitions. [2022-11-03 01:48:49,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2022-11-03 01:48:49,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:49,108 INFO L195 NwaCegarLoop]: trace histogram [39, 32, 32, 32, 32, 32, 32, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:49,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 01:48:49,108 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:48:49,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:49,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1173510198, now seen corresponding path program 1 times [2022-11-03 01:48:49,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:49,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174664876] [2022-11-03 01:48:49,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:49,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:50,714 INFO L134 CoverageAnalysis]: Checked inductivity of 4510 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4492 trivial. 0 not checked. [2022-11-03 01:48:50,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:50,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174664876] [2022-11-03 01:48:50,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174664876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:48:50,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:48:50,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:48:50,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362468781] [2022-11-03 01:48:50,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:48:50,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:48:50,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:50,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:48:50,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:48:50,717 INFO L87 Difference]: Start difference. First operand 46067 states and 64983 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-03 01:48:52,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:55,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:57,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:49:05,354 WARN L539 Checker$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 01:49:13,071 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 01:49:13,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:49:13,515 INFO L93 Difference]: Finished difference Result 106407 states and 150183 transitions. [2022-11-03 01:49:13,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:49:13,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 446 [2022-11-03 01:49:13,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:49:13,936 INFO L225 Difference]: With dead ends: 106407 [2022-11-03 01:49:13,936 INFO L226 Difference]: Without dead ends: 60937 [2022-11-03 01:49:14,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:49:14,051 INFO L413 NwaCegarLoop]: 5313 mSDtfsCounter, 3033 mSDsluCounter, 3272 mSDsCounter, 0 mSdLazyCounter, 1581 mSolverCounterSat, 8 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3036 SdHoareTripleChecker+Valid, 8067 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1581 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:49:14,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3036 Valid, 8067 Invalid, 1594 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 1581 Invalid, 5 Unknown, 0 Unchecked, 20.8s Time] [2022-11-03 01:49:14,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60937 states. [2022-11-03 01:49:17,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60937 to 60903. [2022-11-03 01:49:17,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60903 states, 39268 states have (on average 1.341957828257105) internal successors, (52696), 39730 states have internal predecessors, (52696), 16564 states have call successors, (16564), 5081 states have call predecessors, (16564), 5070 states have return successors, (16621), 16323 states have call predecessors, (16621), 16564 states have call successors, (16621) [2022-11-03 01:49:17,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60903 states to 60903 states and 85881 transitions. [2022-11-03 01:49:17,719 INFO L78 Accepts]: Start accepts. Automaton has 60903 states and 85881 transitions. Word has length 446 [2022-11-03 01:49:17,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:49:17,721 INFO L495 AbstractCegarLoop]: Abstraction has 60903 states and 85881 transitions. [2022-11-03 01:49:17,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-03 01:49:17,721 INFO L276 IsEmpty]: Start isEmpty. Operand 60903 states and 85881 transitions. [2022-11-03 01:49:17,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2022-11-03 01:49:17,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:49:17,751 INFO L195 NwaCegarLoop]: trace histogram [37, 32, 32, 32, 32, 32, 32, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:49:17,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 01:49:17,752 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:49:17,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:49:17,752 INFO L85 PathProgramCache]: Analyzing trace with hash -390261790, now seen corresponding path program 1 times [2022-11-03 01:49:17,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:49:17,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485213590] [2022-11-03 01:49:17,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:17,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:49:18,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:19,275 INFO L134 CoverageAnalysis]: Checked inductivity of 4353 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4341 trivial. 0 not checked. [2022-11-03 01:49:19,275 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:49:19,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485213590] [2022-11-03 01:49:19,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485213590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:49:19,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:49:19,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:49:19,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806315922] [2022-11-03 01:49:19,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:49:19,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:49:19,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:49:19,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:49:19,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:49:19,279 INFO L87 Difference]: Start difference. First operand 60903 states and 85881 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-03 01:49:21,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:49:24,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:49:30,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:49:33,550 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 01:49:37,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:49:37,542 INFO L93 Difference]: Finished difference Result 138106 states and 194158 transitions. [2022-11-03 01:49:37,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:49:37,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 461 [2022-11-03 01:49:37,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:49:37,909 INFO L225 Difference]: With dead ends: 138106 [2022-11-03 01:49:37,909 INFO L226 Difference]: Without dead ends: 77800 [2022-11-03 01:49:38,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:49:38,241 INFO L413 NwaCegarLoop]: 4491 mSDtfsCounter, 2820 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2821 SdHoareTripleChecker+Valid, 6856 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:49:38,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2821 Valid, 6856 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1312 Invalid, 3 Unknown, 0 Unchecked, 15.4s Time] [2022-11-03 01:49:38,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77800 states. [2022-11-03 01:49:41,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77800 to 77765. [2022-11-03 01:49:41,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77765 states, 49844 states have (on average 1.3347644651312094) internal successors, (66530), 50457 states have internal predecessors, (66530), 21147 states have call successors, (21147), 6788 states have call predecessors, (21147), 6773 states have return successors, (21220), 20832 states have call predecessors, (21220), 21147 states have call successors, (21220) [2022-11-03 01:49:42,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77765 states to 77765 states and 108897 transitions. [2022-11-03 01:49:42,313 INFO L78 Accepts]: Start accepts. Automaton has 77765 states and 108897 transitions. Word has length 461 [2022-11-03 01:49:42,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:49:42,315 INFO L495 AbstractCegarLoop]: Abstraction has 77765 states and 108897 transitions. [2022-11-03 01:49:42,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-03 01:49:42,315 INFO L276 IsEmpty]: Start isEmpty. Operand 77765 states and 108897 transitions. [2022-11-03 01:49:42,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2022-11-03 01:49:42,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:49:42,342 INFO L195 NwaCegarLoop]: trace histogram [37, 32, 32, 32, 32, 32, 32, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:49:42,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 01:49:42,342 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:49:42,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:49:42,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1475936292, now seen corresponding path program 1 times [2022-11-03 01:49:42,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:49:42,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615823233] [2022-11-03 01:49:42,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:42,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:49:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:43,707 INFO L134 CoverageAnalysis]: Checked inductivity of 4350 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4343 trivial. 0 not checked. [2022-11-03 01:49:43,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:49:43,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615823233] [2022-11-03 01:49:43,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615823233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:49:43,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:49:43,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:49:43,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159695736] [2022-11-03 01:49:43,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:49:43,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:49:43,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:49:43,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:49:43,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:49:43,711 INFO L87 Difference]: Start difference. First operand 77765 states and 108897 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2022-11-03 01:49:46,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:49:49,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:49:56,442 WARN L539 Checker$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 01:49:59,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:07,844 WARN L539 Checker$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 01:50:08,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:08,889 INFO L93 Difference]: Finished difference Result 185995 states and 260579 transitions. [2022-11-03 01:50:08,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:50:08,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 454 [2022-11-03 01:50:08,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:09,416 INFO L225 Difference]: With dead ends: 185995 [2022-11-03 01:50:09,416 INFO L226 Difference]: Without dead ends: 108827 [2022-11-03 01:50:09,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:50:09,558 INFO L413 NwaCegarLoop]: 5103 mSDtfsCounter, 2769 mSDsluCounter, 3255 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 9 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2773 SdHoareTripleChecker+Valid, 7853 SdHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1537 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:50:09,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2773 Valid, 7853 Invalid, 1550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1537 Invalid, 4 Unknown, 0 Unchecked, 21.3s Time] [2022-11-03 01:50:09,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108827 states. [2022-11-03 01:50:13,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108827 to 108773. [2022-11-03 01:50:13,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108773 states, 69984 states have (on average 1.3358196159122084) internal successors, (93486), 70881 states have internal predecessors, (93486), 29265 states have call successors, (29265), 9546 states have call predecessors, (29265), 9523 states have return successors, (29394), 28778 states have call predecessors, (29394), 29265 states have call successors, (29394) [2022-11-03 01:50:14,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108773 states to 108773 states and 152145 transitions. [2022-11-03 01:50:14,465 INFO L78 Accepts]: Start accepts. Automaton has 108773 states and 152145 transitions. Word has length 454 [2022-11-03 01:50:14,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:50:14,466 INFO L495 AbstractCegarLoop]: Abstraction has 108773 states and 152145 transitions. [2022-11-03 01:50:14,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2022-11-03 01:50:14,466 INFO L276 IsEmpty]: Start isEmpty. Operand 108773 states and 152145 transitions. [2022-11-03 01:50:14,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-11-03 01:50:14,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:14,504 INFO L195 NwaCegarLoop]: trace histogram [37, 32, 32, 32, 32, 32, 32, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:50:14,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 01:50:14,505 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:50:14,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:14,505 INFO L85 PathProgramCache]: Analyzing trace with hash -694661052, now seen corresponding path program 1 times [2022-11-03 01:50:14,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:14,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980498368] [2022-11-03 01:50:14,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:14,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:24,166 INFO L134 CoverageAnalysis]: Checked inductivity of 4515 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4515 trivial. 0 not checked. [2022-11-03 01:50:24,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:24,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980498368] [2022-11-03 01:50:24,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980498368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:50:24,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:50:24,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:50:24,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273885505] [2022-11-03 01:50:24,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:50:24,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:50:24,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:24,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:50:24,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:50:24,170 INFO L87 Difference]: Start difference. First operand 108773 states and 152145 transitions. Second operand has 6 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-03 01:50:26,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:32,669 WARN L539 Checker$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 01:50:34,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:50:49,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []