./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_7e62d7ae-9a1b-48ee-94dc-fb0d5e3c68c2/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e62d7ae-9a1b-48ee-94dc-fb0d5e3c68c2/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e62d7ae-9a1b-48ee-94dc-fb0d5e3c68c2/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e62d7ae-9a1b-48ee-94dc-fb0d5e3c68c2/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e62d7ae-9a1b-48ee-94dc-fb0d5e3c68c2/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e62d7ae-9a1b-48ee-94dc-fb0d5e3c68c2/bin/utaipan-I9t0OCRTmS --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 b1d9346b63752b34e66e21333a7236034d1604ec5ec14f79593d3da0c163d1d9 --- 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-8393723 [2022-11-19 06:48:35,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:48:35,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:48:35,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:48:35,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:48:35,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:48:35,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:48:35,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:48:35,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:48:35,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:48:35,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:48:35,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:48:35,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:48:35,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:48:35,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:48:35,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:48:35,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:48:35,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:48:35,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:48:35,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:48:35,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:48:35,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:48:35,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:48:35,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:48:35,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:48:35,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:48:35,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:48:35,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:48:35,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:48:35,304 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:48:35,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:48:35,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:48:35,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:48:35,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:48:35,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:48:35,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:48:35,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:48:35,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:48:35,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:48:35,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:48:35,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:48:35,312 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e62d7ae-9a1b-48ee-94dc-fb0d5e3c68c2/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 06:48:35,351 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:48:35,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:48:35,352 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:48:35,352 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:48:35,353 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:48:35,353 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:48:35,353 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:48:35,353 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:48:35,353 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:48:35,354 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:48:35,355 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:48:35,355 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:48:35,355 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:48:35,355 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:48:35,355 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:48:35,355 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:48:35,356 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:48:35,356 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:48:35,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:48:35,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:48:35,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:48:35,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:48:35,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:48:35,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:48:35,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:48:35,359 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:48:35,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:48:35,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:48:35,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:48:35,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:48:35,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:48:35,360 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:48:35,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:48:35,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:48:35,361 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:48:35,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:48:35,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:48:35,361 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:48:35,362 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_7e62d7ae-9a1b-48ee-94dc-fb0d5e3c68c2/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e62d7ae-9a1b-48ee-94dc-fb0d5e3c68c2/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1d9346b63752b34e66e21333a7236034d1604ec5ec14f79593d3da0c163d1d9 [2022-11-19 06:48:35,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:48:35,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:48:35,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:48:35,681 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:48:35,681 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:48:35,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e62d7ae-9a1b-48ee-94dc-fb0d5e3c68c2/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-19 06:48:35,788 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e62d7ae-9a1b-48ee-94dc-fb0d5e3c68c2/bin/utaipan-I9t0OCRTmS/data/cb0be84fe/c874a93ef9704029bc283c036af612a4/FLAGefc2a46eb [2022-11-19 06:48:36,713 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:48:36,715 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e62d7ae-9a1b-48ee-94dc-fb0d5e3c68c2/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-19 06:48:36,780 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e62d7ae-9a1b-48ee-94dc-fb0d5e3c68c2/bin/utaipan-I9t0OCRTmS/data/cb0be84fe/c874a93ef9704029bc283c036af612a4/FLAGefc2a46eb [2022-11-19 06:48:37,103 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e62d7ae-9a1b-48ee-94dc-fb0d5e3c68c2/bin/utaipan-I9t0OCRTmS/data/cb0be84fe/c874a93ef9704029bc283c036af612a4 [2022-11-19 06:48:37,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:48:37,108 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:48:37,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:48:37,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:48:37,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:48:37,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:48:37" (1/1) ... [2022-11-19 06:48:37,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c6b270d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:37, skipping insertion in model container [2022-11-19 06:48:37,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:48:37" (1/1) ... [2022-11-19 06:48:37,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:48:37,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:48:40,987 WARN L234 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_7e62d7ae-9a1b-48ee-94dc-fb0d5e3c68c2/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i[381126,381139] [2022-11-19 06:48:41,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:48:41,400 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:48:42,044 WARN L234 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_7e62d7ae-9a1b-48ee-94dc-fb0d5e3c68c2/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i[381126,381139] [2022-11-19 06:48:42,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:48:42,353 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:48:42,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:42 WrapperNode [2022-11-19 06:48:42,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:48:42,355 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:48:42,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:48:42,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:48:42,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:42" (1/1) ... [2022-11-19 06:48:42,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:42" (1/1) ... [2022-11-19 06:48:43,084 INFO L138 Inliner]: procedures = 549, calls = 5021, calls flagged for inlining = 246, calls inlined = 225, statements flattened = 9869 [2022-11-19 06:48:43,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:48:43,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:48:43,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:48:43,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:48:43,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:42" (1/1) ... [2022-11-19 06:48:43,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:42" (1/1) ... [2022-11-19 06:48:43,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:42" (1/1) ... [2022-11-19 06:48:43,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:42" (1/1) ... [2022-11-19 06:48:44,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:42" (1/1) ... [2022-11-19 06:48:44,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:42" (1/1) ... [2022-11-19 06:48:44,348 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:42" (1/1) ... [2022-11-19 06:48:44,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:42" (1/1) ... [2022-11-19 06:48:44,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:48:44,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:48:44,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:48:44,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:48:44,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:42" (1/1) ... [2022-11-19 06:48:44,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:48:44,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e62d7ae-9a1b-48ee-94dc-fb0d5e3c68c2/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:48:44,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e62d7ae-9a1b-48ee-94dc-fb0d5e3c68c2/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:48:44,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e62d7ae-9a1b-48ee-94dc-fb0d5e3c68c2/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:48:44,584 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-19 06:48:44,584 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-19 06:48:44,584 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_urb_cleanup [2022-11-19 06:48:44,584 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_urb_cleanup [2022-11-19 06:48:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-19 06:48:44,585 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-19 06:48:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-19 06:48:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 06:48:44,585 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 06:48:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_resume [2022-11-19 06:48:44,586 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_resume [2022-11-19 06:48:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-11-19 06:48:44,586 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-11-19 06:48:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 06:48:44,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 06:48:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_3 [2022-11-19 06:48:44,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_3 [2022-11-19 06:48:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-11-19 06:48:44,587 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-11-19 06:48:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_stop_streaming [2022-11-19 06:48:44,587 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_stop_streaming [2022-11-19 06:48:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure vdev_init [2022-11-19 06:48:44,588 INFO L138 BoogieDeclarations]: Found implementation of procedure vdev_init [2022-11-19 06:48:44,588 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_fmt [2022-11-19 06:48:44,647 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_fmt [2022-11-19 06:48:44,647 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_dvbt [2022-11-19 06:48:44,647 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_dvbt [2022-11-19 06:48:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency___0 [2022-11-19 06:48:44,648 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency___0 [2022-11-19 06:48:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure set_tuner_mode [2022-11-19 06:48:44,648 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tuner_mode [2022-11-19 06:48:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_close [2022-11-19 06:48:44,648 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_close [2022-11-19 06:48:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-19 06:48:44,648 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-19 06:48:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_pointer [2022-11-19 06:48:44,648 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_pointer [2022-11-19 06:48:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_vmalloc [2022-11-19 06:48:44,649 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_vmalloc [2022-11-19 06:48:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 06:48:44,649 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 06:48:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-19 06:48:44,649 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-19 06:48:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:48:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_trigger [2022-11-19 06:48:44,649 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_trigger [2022-11-19 06:48:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_radio [2022-11-19 06:48:44,649 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_radio [2022-11-19 06:48:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_pcm_close [2022-11-19 06:48:44,650 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_pcm_close [2022-11-19 06:48:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 06:48:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure check_control_id [2022-11-19 06:48:44,650 INFO L138 BoogieDeclarations]: Found implementation of procedure check_control_id [2022-11-19 06:48:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-19 06:48:44,650 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-19 06:48:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-19 06:48:44,650 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-19 06:48:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_queue [2022-11-19 06:48:44,651 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_queue [2022-11-19 06:48:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 06:48:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-19 06:48:44,651 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-19 06:48:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency [2022-11-19 06:48:44,651 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency [2022-11-19 06:48:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_mmap [2022-11-19 06:48:44,651 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_mmap [2022-11-19 06:48:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-11-19 06:48:44,651 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-11-19 06:48:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:48:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 06:48:44,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 06:48:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure usb_transfer_stop [2022-11-19 06:48:44,652 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_transfer_stop [2022-11-19 06:48:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-19 06:48:44,652 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-19 06:48:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_frontend [2022-11-19 06:48:44,652 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_frontend [2022-11-19 06:48:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure is_working [2022-11-19 06:48:44,652 INFO L138 BoogieDeclarations]: Found implementation of procedure is_working [2022-11-19 06:48:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-19 06:48:44,652 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-19 06:48:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_suspend [2022-11-19 06:48:44,652 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_suspend [2022-11-19 06:48:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure fire_audio_urb [2022-11-19 06:48:44,652 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_audio_urb [2022-11-19 06:48:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-19 06:48:44,652 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-19 06:48:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_stream [2022-11-19 06:48:44,652 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_stream [2022-11-19 06:48:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2022-11-19 06:48:44,653 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2022-11-19 06:48:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-19 06:48:44,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-19 06:48:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:48:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure get_audio_std [2022-11-19 06:48:44,653 INFO L138 BoogieDeclarations]: Found implementation of procedure get_audio_std [2022-11-19 06:48:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:48:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_poseidon [2022-11-19 06:48:44,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_poseidon [2022-11-19 06:48:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 06:48:44,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 06:48:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 06:48:44,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 06:48:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 06:48:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 06:48:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_poseidon [2022-11-19 06:48:44,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_poseidon [2022-11-19 06:48:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_open [2022-11-19 06:48:44,654 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_open [2022-11-19 06:48:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_signal_strength [2022-11-19 06:48:44,654 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_signal_strength [2022-11-19 06:48:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_release [2022-11-19 06:48:44,654 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_release [2022-11-19 06:48:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_open [2022-11-19 06:48:44,654 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_open [2022-11-19 06:48:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 06:48:44,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 06:48:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-19 06:48:44,654 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-19 06:48:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2022-11-19 06:48:44,654 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2022-11-19 06:48:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-19 06:48:44,654 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-19 06:48:44,655 INFO L130 BoogieDeclarations]: Found specification of procedure send_set_req [2022-11-19 06:48:44,655 INFO L138 BoogieDeclarations]: Found implementation of procedure send_set_req [2022-11-19 06:48:44,655 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-19 06:48:44,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-19 06:48:44,655 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2022-11-19 06:48:44,655 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2022-11-19 06:48:44,655 INFO L130 BoogieDeclarations]: Found specification of procedure init_copy [2022-11-19 06:48:44,655 INFO L138 BoogieDeclarations]: Found implementation of procedure init_copy [2022-11-19 06:48:44,655 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-19 06:48:44,656 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-19 06:48:44,656 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bulk_urbs_generic [2022-11-19 06:48:44,656 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bulk_urbs_generic [2022-11-19 06:48:44,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:48:44,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:48:44,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-19 06:48:44,656 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-19 06:48:44,656 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-19 06:48:44,656 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-19 06:48:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 06:48:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 06:48:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 06:48:44,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 06:48:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-19 06:48:44,657 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-19 06:48:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-11-19 06:48:44,657 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-11-19 06:48:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_pd_get_page [2022-11-19 06:48:44,658 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_pd_get_page [2022-11-19 06:48:44,658 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-19 06:48:44,658 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-19 06:48:44,658 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-11-19 06:48:44,658 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-11-19 06:48:44,658 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb [2022-11-19 06:48:44,658 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb [2022-11-19 06:48:44,658 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-19 06:48:44,658 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-19 06:48:44,659 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_get_fe [2022-11-19 06:48:44,659 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_get_fe [2022-11-19 06:48:44,659 INFO L130 BoogieDeclarations]: Found specification of procedure pd_dvb_usb_device_cleanup [2022-11-19 06:48:44,659 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_dvb_usb_device_cleanup [2022-11-19 06:48:44,659 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_start_streaming [2022-11-19 06:48:44,659 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_start_streaming [2022-11-19 06:48:44,659 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 06:48:44,659 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 06:48:44,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 06:48:44,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 06:48:44,660 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2022-11-19 06:48:44,660 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2022-11-19 06:48:44,660 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 06:48:44,660 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 06:48:44,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 06:48:44,660 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 06:48:44,660 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2022-11-19 06:48:44,660 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2022-11-19 06:48:44,660 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 06:48:44,661 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 06:48:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-19 06:48:44,661 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-19 06:48:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_tuner [2022-11-19 06:48:44,661 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_tuner [2022-11-19 06:48:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:48:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 06:48:44,661 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 06:48:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure set_std [2022-11-19 06:48:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure set_std [2022-11-19 06:48:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 06:48:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb_generic [2022-11-19 06:48:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb_generic [2022-11-19 06:48:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_ts_bus_ctrl [2022-11-19 06:48:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_ts_bus_ctrl [2022-11-19 06:48:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_exit [2022-11-19 06:48:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_exit [2022-11-19 06:48:44,663 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_open [2022-11-19 06:48:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_open [2022-11-19 06:48:44,663 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-19 06:48:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-19 06:48:44,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 06:48:44,663 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 06:48:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 06:48:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_status [2022-11-19 06:48:44,664 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_status [2022-11-19 06:48:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_stop [2022-11-19 06:48:44,664 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_stop [2022-11-19 06:48:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-19 06:48:44,664 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-19 06:48:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_release [2022-11-19 06:48:44,665 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_release [2022-11-19 06:48:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-19 06:48:44,665 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-19 06:48:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-19 06:48:44,665 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-19 06:48:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure get_pd [2022-11-19 06:48:44,666 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pd [2022-11-19 06:48:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_disconnect [2022-11-19 06:48:44,666 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_disconnect [2022-11-19 06:48:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_poll [2022-11-19 06:48:44,666 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_poll [2022-11-19 06:48:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-19 06:48:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-19 06:48:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure send_get_req [2022-11-19 06:48:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure send_get_req [2022-11-19 06:48:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2022-11-19 06:48:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2022-11-19 06:48:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2022-11-19 06:48:44,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2022-11-19 06:48:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_params [2022-11-19 06:48:44,668 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_params [2022-11-19 06:48:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-19 06:48:44,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-19 06:48:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_unc_blocks [2022-11-19 06:48:44,669 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_unc_blocks [2022-11-19 06:48:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure audio_buf_free [2022-11-19 06:48:44,669 INFO L138 BoogieDeclarations]: Found implementation of procedure audio_buf_free [2022-11-19 06:48:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 06:48:44,669 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 06:48:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_get_tune_settings [2022-11-19 06:48:44,670 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_get_tune_settings [2022-11-19 06:48:44,670 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_set_fe [2022-11-19 06:48:44,670 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_set_fe [2022-11-19 06:48:44,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:48:44,670 INFO L130 BoogieDeclarations]: Found specification of procedure hibernation_resume [2022-11-19 06:48:44,670 INFO L138 BoogieDeclarations]: Found implementation of procedure hibernation_resume [2022-11-19 06:48:44,671 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_free [2022-11-19 06:48:44,671 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_free [2022-11-19 06:48:44,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 06:48:44,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 06:48:44,671 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_resume [2022-11-19 06:48:44,671 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_resume [2022-11-19 06:48:44,672 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_checkmode [2022-11-19 06:48:44,672 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_checkmode [2022-11-19 06:48:44,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-19 06:48:44,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-19 06:48:44,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2022-11-19 06:48:44,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2022-11-19 06:48:44,672 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-11-19 06:48:44,673 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-11-19 06:48:44,673 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_ioctl [2022-11-19 06:48:44,673 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_ioctl [2022-11-19 06:48:44,673 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-11-19 06:48:44,673 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-11-19 06:48:44,673 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_vmalloc_init [2022-11-19 06:48:44,673 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_vmalloc_init [2022-11-19 06:48:44,674 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-19 06:48:44,674 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-19 06:48:44,674 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2022-11-19 06:48:44,674 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2022-11-19 06:48:44,674 INFO L130 BoogieDeclarations]: Found specification of procedure get_autopm_ref [2022-11-19 06:48:44,674 INFO L138 BoogieDeclarations]: Found implementation of procedure get_autopm_ref [2022-11-19 06:48:44,674 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_sleep [2022-11-19 06:48:44,675 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_sleep [2022-11-19 06:48:44,675 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_setup [2022-11-19 06:48:44,675 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_setup [2022-11-19 06:48:44,675 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_video_device [2022-11-19 06:48:44,675 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_video_device [2022-11-19 06:48:44,675 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_ber [2022-11-19 06:48:44,676 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_ber [2022-11-19 06:48:44,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:48:44,676 INFO L130 BoogieDeclarations]: Found specification of procedure set_debug_mode [2022-11-19 06:48:44,676 INFO L138 BoogieDeclarations]: Found implementation of procedure set_debug_mode [2022-11-19 06:48:44,676 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_prepare [2022-11-19 06:48:44,676 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_prepare [2022-11-19 06:48:45,928 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:48:45,934 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:48:55,827 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 06:55:12,396 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:55:15,185 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:55:15,185 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 06:55:15,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:55:15 BoogieIcfgContainer [2022-11-19 06:55:15,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:55:15,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:55:15,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:55:15,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:55:15,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:48:37" (1/3) ... [2022-11-19 06:55:15,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc1bc06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:55:15, skipping insertion in model container [2022-11-19 06:55:15,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:42" (2/3) ... [2022-11-19 06:55:15,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc1bc06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:55:15, skipping insertion in model container [2022-11-19 06:55:15,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:55:15" (3/3) ... [2022-11-19 06:55:15,200 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-19 06:55:15,221 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:55:15,221 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:55:15,311 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:55:15,317 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;@4236012d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:55:15,318 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:55:15,328 INFO L276 IsEmpty]: Start isEmpty. Operand has 2093 states, 1308 states have (on average 1.3692660550458715) internal successors, (1791), 1343 states have internal predecessors, (1791), 651 states have call successors, (651), 133 states have call predecessors, (651), 132 states have return successors, (636), 635 states have call predecessors, (636), 636 states have call successors, (636) [2022-11-19 06:55:15,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-19 06:55:15,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:15,343 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 06:55:15,344 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:55:15,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:15,349 INFO L85 PathProgramCache]: Analyzing trace with hash 826436147, now seen corresponding path program 1 times [2022-11-19 06:55:15,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:15,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485795846] [2022-11-19 06:55:15,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:15,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:17,007 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 06:55:17,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:17,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485795846] [2022-11-19 06:55:17,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485795846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:55:17,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:55:17,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:55:17,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884568704] [2022-11-19 06:55:17,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:55:17,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:55:17,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:17,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:55:17,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:55:17,065 INFO L87 Difference]: Start difference. First operand has 2093 states, 1308 states have (on average 1.3692660550458715) internal successors, (1791), 1343 states have internal predecessors, (1791), 651 states have call successors, (651), 133 states have call predecessors, (651), 132 states have return successors, (636), 635 states have call predecessors, (636), 636 states have call successors, (636) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-19 06:55:19,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:21,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:24,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:27,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:55:29,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:31,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:34,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:36,940 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 [] [2022-11-19 06:55:39,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:39,137 INFO L93 Difference]: Finished difference Result 6181 states and 9319 transitions. [2022-11-19 06:55:39,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:55:39,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 74 [2022-11-19 06:55:39,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:39,203 INFO L225 Difference]: With dead ends: 6181 [2022-11-19 06:55:39,204 INFO L226 Difference]: Without dead ends: 4065 [2022-11-19 06:55:39,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:55:39,232 INFO L413 NwaCegarLoop]: 3365 mSDtfsCounter, 2933 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2937 SdHoareTripleChecker+Valid, 6102 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:39,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2937 Valid, 6102 Invalid, 634 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 627 Invalid, 4 Unknown, 0 Unchecked, 21.7s Time] [2022-11-19 06:55:39,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4065 states. [2022-11-19 06:55:39,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4065 to 4058. [2022-11-19 06:55:39,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4058 states, 2567 states have (on average 1.358005453837164) internal successors, (3486), 2594 states have internal predecessors, (3486), 1230 states have call successors, (1230), 261 states have call predecessors, (1230), 260 states have return successors, (1224), 1218 states have call predecessors, (1224), 1220 states have call successors, (1224) [2022-11-19 06:55:39,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4058 states to 4058 states and 5940 transitions. [2022-11-19 06:55:39,591 INFO L78 Accepts]: Start accepts. Automaton has 4058 states and 5940 transitions. Word has length 74 [2022-11-19 06:55:39,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:39,592 INFO L495 AbstractCegarLoop]: Abstraction has 4058 states and 5940 transitions. [2022-11-19 06:55:39,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-19 06:55:39,592 INFO L276 IsEmpty]: Start isEmpty. Operand 4058 states and 5940 transitions. [2022-11-19 06:55:39,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-19 06:55:39,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:39,606 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 06:55:39,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:55:39,607 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:55:39,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:39,607 INFO L85 PathProgramCache]: Analyzing trace with hash 616892412, now seen corresponding path program 1 times [2022-11-19 06:55:39,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:39,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502038360] [2022-11-19 06:55:39,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:39,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:40,418 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 06:55:40,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:40,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502038360] [2022-11-19 06:55:40,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502038360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:55:40,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:55:40,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:55:40,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230617190] [2022-11-19 06:55:40,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:55:40,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:55:40,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:40,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:55:40,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:55:40,421 INFO L87 Difference]: Start difference. First operand 4058 states and 5940 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-19 06:55:42,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:45,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:47,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:50,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:53,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:55:57,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:59,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:02,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:04,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:04,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:04,887 INFO L93 Difference]: Finished difference Result 12033 states and 17634 transitions. [2022-11-19 06:56:04,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:56:04,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 81 [2022-11-19 06:56:04,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:04,946 INFO L225 Difference]: With dead ends: 12033 [2022-11-19 06:56:04,947 INFO L226 Difference]: Without dead ends: 7986 [2022-11-19 06:56:04,968 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 [2022-11-19 06:56:04,969 INFO L413 NwaCegarLoop]: 3369 mSDtfsCounter, 2878 mSDsluCounter, 2718 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2886 SdHoareTripleChecker+Valid, 6087 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:04,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2886 Valid, 6087 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 624 Invalid, 7 Unknown, 0 Unchecked, 24.1s Time] [2022-11-19 06:56:04,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7986 states. [2022-11-19 06:56:05,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7986 to 7965. [2022-11-19 06:56:05,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7965 states, 5041 states have (on average 1.3598492362626462) internal successors, (6855), 5089 states have internal predecessors, (6855), 2409 states have call successors, (2409), 515 states have call predecessors, (2409), 514 states have return successors, (2419), 2392 states have call predecessors, (2419), 2399 states have call successors, (2419) [2022-11-19 06:56:05,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7965 states to 7965 states and 11683 transitions. [2022-11-19 06:56:05,394 INFO L78 Accepts]: Start accepts. Automaton has 7965 states and 11683 transitions. Word has length 81 [2022-11-19 06:56:05,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:05,397 INFO L495 AbstractCegarLoop]: Abstraction has 7965 states and 11683 transitions. [2022-11-19 06:56:05,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-19 06:56:05,397 INFO L276 IsEmpty]: Start isEmpty. Operand 7965 states and 11683 transitions. [2022-11-19 06:56:05,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-19 06:56:05,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:05,401 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 06:56:05,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:56:05,402 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:56:05,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:05,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1571971476, now seen corresponding path program 1 times [2022-11-19 06:56:05,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:05,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445328678] [2022-11-19 06:56:05,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:05,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:06,169 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 06:56:06,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:06,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445328678] [2022-11-19 06:56:06,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445328678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:06,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:56:06,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:56:06,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065161421] [2022-11-19 06:56:06,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:06,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:56:06,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:06,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:56:06,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:56:06,172 INFO L87 Difference]: Start difference. First operand 7965 states and 11683 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 06:56:08,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:10,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:15,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:19,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:56:24,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:27,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:28,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:28,318 INFO L93 Difference]: Finished difference Result 22739 states and 33354 transitions. [2022-11-19 06:56:28,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:56:28,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 89 [2022-11-19 06:56:28,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:28,414 INFO L225 Difference]: With dead ends: 22739 [2022-11-19 06:56:28,415 INFO L226 Difference]: Without dead ends: 14785 [2022-11-19 06:56:28,454 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 [2022-11-19 06:56:28,455 INFO L413 NwaCegarLoop]: 3304 mSDtfsCounter, 2524 mSDsluCounter, 2707 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2530 SdHoareTripleChecker+Valid, 6011 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:28,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2530 Valid, 6011 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 645 Invalid, 6 Unknown, 0 Unchecked, 21.7s Time] [2022-11-19 06:56:28,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14785 states. [2022-11-19 06:56:29,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14785 to 14755. [2022-11-19 06:56:29,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14755 states, 9367 states have (on average 1.3627628910003202) internal successors, (12765), 9441 states have internal predecessors, (12765), 4423 states have call successors, (4423), 965 states have call predecessors, (4423), 964 states have return successors, (4461), 4400 states have call predecessors, (4461), 4413 states have call successors, (4461) [2022-11-19 06:56:29,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14755 states to 14755 states and 21649 transitions. [2022-11-19 06:56:29,252 INFO L78 Accepts]: Start accepts. Automaton has 14755 states and 21649 transitions. Word has length 89 [2022-11-19 06:56:29,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:29,253 INFO L495 AbstractCegarLoop]: Abstraction has 14755 states and 21649 transitions. [2022-11-19 06:56:29,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 06:56:29,254 INFO L276 IsEmpty]: Start isEmpty. Operand 14755 states and 21649 transitions. [2022-11-19 06:56:29,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-19 06:56:29,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:29,256 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:29,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:56:29,257 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:56:29,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:29,258 INFO L85 PathProgramCache]: Analyzing trace with hash 864028710, now seen corresponding path program 1 times [2022-11-19 06:56:29,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:29,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709337117] [2022-11-19 06:56:29,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:29,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:29,990 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-19 06:56:29,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:29,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709337117] [2022-11-19 06:56:29,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709337117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:29,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:56:29,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:56:29,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159421661] [2022-11-19 06:56:29,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:29,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:56:29,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:29,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:56:29,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:56:29,998 INFO L87 Difference]: Start difference. First operand 14755 states and 21649 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-19 06:56:32,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:34,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:37,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:40,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:56:45,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:47,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:51,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:51,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:51,890 INFO L93 Difference]: Finished difference Result 44024 states and 64577 transitions. [2022-11-19 06:56:51,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:56:51,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 89 [2022-11-19 06:56:51,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:52,064 INFO L225 Difference]: With dead ends: 44024 [2022-11-19 06:56:52,064 INFO L226 Difference]: Without dead ends: 29280 [2022-11-19 06:56:52,409 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 [2022-11-19 06:56:52,411 INFO L413 NwaCegarLoop]: 3367 mSDtfsCounter, 2908 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2914 SdHoareTripleChecker+Valid, 6076 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:52,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2914 Valid, 6076 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 640 Invalid, 5 Unknown, 0 Unchecked, 21.1s Time] [2022-11-19 06:56:52,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29280 states. [2022-11-19 06:56:53,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29280 to 29259. [2022-11-19 06:56:54,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29259 states, 18569 states have (on average 1.3622165975550649) internal successors, (25295), 18709 states have internal predecessors, (25295), 8761 states have call successors, (8761), 1929 states have call predecessors, (8761), 1928 states have return successors, (8855), 8724 states have call predecessors, (8855), 8751 states have call successors, (8855) [2022-11-19 06:56:54,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29259 states to 29259 states and 42911 transitions. [2022-11-19 06:56:54,165 INFO L78 Accepts]: Start accepts. Automaton has 29259 states and 42911 transitions. Word has length 89 [2022-11-19 06:56:54,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:54,167 INFO L495 AbstractCegarLoop]: Abstraction has 29259 states and 42911 transitions. [2022-11-19 06:56:54,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-19 06:56:54,168 INFO L276 IsEmpty]: Start isEmpty. Operand 29259 states and 42911 transitions. [2022-11-19 06:56:54,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-19 06:56:54,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:54,176 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 06:56:54,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 06:56:54,176 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:56:54,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:54,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1593269343, now seen corresponding path program 1 times [2022-11-19 06:56:54,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:54,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633216382] [2022-11-19 06:56:54,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:54,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:56,051 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 06:56:56,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:56,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633216382] [2022-11-19 06:56:56,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633216382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:56,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:56:56,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:56:56,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706533239] [2022-11-19 06:56:56,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:56,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:56:56,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:56,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:56:56,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:56:56,054 INFO L87 Difference]: Start difference. First operand 29259 states and 42911 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-19 06:56:58,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:00,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:02,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:04,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:06,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:09,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:57:15,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:17,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:20,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:20,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:57:20,640 INFO L93 Difference]: Finished difference Result 80098 states and 118142 transitions. [2022-11-19 06:57:20,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:57:20,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2022-11-19 06:57:20,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:57:20,965 INFO L225 Difference]: With dead ends: 80098 [2022-11-19 06:57:20,965 INFO L226 Difference]: Without dead ends: 50850 [2022-11-19 06:57:21,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:57:21,094 INFO L413 NwaCegarLoop]: 3236 mSDtfsCounter, 2487 mSDsluCounter, 2473 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 5 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2489 SdHoareTripleChecker+Valid, 5709 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:57:21,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2489 Valid, 5709 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 607 Invalid, 5 Unknown, 0 Unchecked, 22.9s Time] [2022-11-19 06:57:21,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50850 states. [2022-11-19 06:57:23,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50850 to 50739. [2022-11-19 06:57:23,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50739 states, 32676 states have (on average 1.375535561268209) internal successors, (44947), 33355 states have internal predecessors, (44947), 14565 states have call successors, (14565), 3658 states have call predecessors, (14565), 3497 states have return successors, (15273), 13885 states have call predecessors, (15273), 14553 states have call successors, (15273) [2022-11-19 06:57:23,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50739 states to 50739 states and 74785 transitions. [2022-11-19 06:57:23,994 INFO L78 Accepts]: Start accepts. Automaton has 50739 states and 74785 transitions. Word has length 93 [2022-11-19 06:57:23,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:57:23,995 INFO L495 AbstractCegarLoop]: Abstraction has 50739 states and 74785 transitions. [2022-11-19 06:57:23,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-19 06:57:23,995 INFO L276 IsEmpty]: Start isEmpty. Operand 50739 states and 74785 transitions. [2022-11-19 06:57:23,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-19 06:57:23,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:57:23,998 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-19 06:57:23,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 06:57:23,999 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:57:23,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:57:23,999 INFO L85 PathProgramCache]: Analyzing trace with hash -184482960, now seen corresponding path program 1 times [2022-11-19 06:57:24,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:57:24,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853768472] [2022-11-19 06:57:24,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:57:24,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:57:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:57:25,016 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-19 06:57:25,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:57:25,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853768472] [2022-11-19 06:57:25,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853768472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:57:25,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:57:25,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:57:25,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092795785] [2022-11-19 06:57:25,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:57:25,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:57:25,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:57:25,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:57:25,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:57:25,018 INFO L87 Difference]: Start difference. First operand 50739 states and 74785 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 06:57:27,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:29,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:33,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:36,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:57:40,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:42,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:44,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:46,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:50,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:57:50,194 INFO L93 Difference]: Finished difference Result 101444 states and 149527 transitions. [2022-11-19 06:57:50,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:57:50,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2022-11-19 06:57:50,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:57:51,022 INFO L225 Difference]: With dead ends: 101444 [2022-11-19 06:57:51,023 INFO L226 Difference]: Without dead ends: 101441 [2022-11-19 06:57:51,067 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 [2022-11-19 06:57:51,072 INFO L413 NwaCegarLoop]: 3346 mSDtfsCounter, 2972 mSDsluCounter, 2696 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2978 SdHoareTripleChecker+Valid, 6042 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:57:51,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2978 Valid, 6042 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 613 Invalid, 5 Unknown, 0 Unchecked, 22.8s Time] [2022-11-19 06:57:51,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101441 states. [2022-11-19 06:57:55,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101441 to 101426. [2022-11-19 06:57:55,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101426 states, 65327 states have (on average 1.3755874293936656) internal successors, (89863), 66676 states have internal predecessors, (89863), 29105 states have call successors, (29105), 7314 states have call predecessors, (29105), 6993 states have return successors, (30541), 27755 states have call predecessors, (30541), 29093 states have call successors, (30541) [2022-11-19 06:57:57,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101426 states to 101426 states and 149509 transitions. [2022-11-19 06:57:57,109 INFO L78 Accepts]: Start accepts. Automaton has 101426 states and 149509 transitions. Word has length 97 [2022-11-19 06:57:57,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:57:57,112 INFO L495 AbstractCegarLoop]: Abstraction has 101426 states and 149509 transitions. [2022-11-19 06:57:57,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 06:57:57,112 INFO L276 IsEmpty]: Start isEmpty. Operand 101426 states and 149509 transitions. [2022-11-19 06:57:57,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-19 06:57:57,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:57:57,118 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-19 06:57:57,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 06:57:57,118 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:57:57,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:57:57,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1424974240, now seen corresponding path program 1 times [2022-11-19 06:57:57,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:57:57,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111684876] [2022-11-19 06:57:57,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:57:57,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:57:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:57:58,138 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-19 06:57:58,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:57:58,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111684876] [2022-11-19 06:57:58,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111684876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:57:58,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:57:58,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:57:58,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035817226] [2022-11-19 06:57:58,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:57:58,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:57:58,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:57:58,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:57:58,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:57:58,140 INFO L87 Difference]: Start difference. First operand 101426 states and 149509 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 06:58:00,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:01,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:06,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:08,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:58:13,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:16,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:18,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:21,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:26,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:26,489 INFO L93 Difference]: Finished difference Result 152152 states and 224270 transitions. [2022-11-19 06:58:26,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:58:26,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 98 [2022-11-19 06:58:26,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:27,717 INFO L225 Difference]: With dead ends: 152152 [2022-11-19 06:58:27,717 INFO L226 Difference]: Without dead ends: 152149 [2022-11-19 06:58:27,786 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 [2022-11-19 06:58:27,786 INFO L413 NwaCegarLoop]: 3348 mSDtfsCounter, 2975 mSDsluCounter, 2699 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2979 SdHoareTripleChecker+Valid, 6047 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:27,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2979 Valid, 6047 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 610 Invalid, 7 Unknown, 0 Unchecked, 23.9s Time] [2022-11-19 06:58:27,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152149 states. [2022-11-19 06:58:34,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152149 to 152134. [2022-11-19 06:58:34,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152134 states, 97989 states have (on average 1.3755625631448427) internal successors, (134790), 100010 states have internal predecessors, (134790), 43649 states have call successors, (43649), 10974 states have call predecessors, (43649), 10495 states have return successors, (45813), 41629 states have call predecessors, (45813), 43637 states have call successors, (45813) [2022-11-19 06:58:36,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152134 states to 152134 states and 224252 transitions. [2022-11-19 06:58:36,366 INFO L78 Accepts]: Start accepts. Automaton has 152134 states and 224252 transitions. Word has length 98 [2022-11-19 06:58:36,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:36,366 INFO L495 AbstractCegarLoop]: Abstraction has 152134 states and 224252 transitions. [2022-11-19 06:58:36,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 06:58:36,367 INFO L276 IsEmpty]: Start isEmpty. Operand 152134 states and 224252 transitions. [2022-11-19 06:58:36,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-19 06:58:36,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:36,370 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-19 06:58:36,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 06:58:36,371 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:58:36,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:36,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1225493389, now seen corresponding path program 1 times [2022-11-19 06:58:36,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:36,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584125611] [2022-11-19 06:58:36,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:36,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:37,195 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-19 06:58:37,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:37,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584125611] [2022-11-19 06:58:37,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584125611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:37,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:37,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:58:37,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091221212] [2022-11-19 06:58:37,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:37,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:58:37,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:37,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:58:37,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:58:37,198 INFO L87 Difference]: Start difference. First operand 152134 states and 224252 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 06:58:39,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:41,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:45,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:48,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:58:53,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:55,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:59:02,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:02,813 INFO L93 Difference]: Finished difference Result 152153 states and 224271 transitions. [2022-11-19 06:59:02,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:59:02,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2022-11-19 06:59:02,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:03,545 INFO L225 Difference]: With dead ends: 152153 [2022-11-19 06:59:03,546 INFO L226 Difference]: Without dead ends: 152150 [2022-11-19 06:59:03,606 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 [2022-11-19 06:59:03,607 INFO L413 NwaCegarLoop]: 3346 mSDtfsCounter, 2965 mSDsluCounter, 2702 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2971 SdHoareTripleChecker+Valid, 6048 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:03,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2971 Valid, 6048 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 611 Invalid, 6 Unknown, 0 Unchecked, 21.0s Time] [2022-11-19 06:59:03,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152150 states.