./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1873a8ab-507d-4d09-af51-341a147537a0/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1873a8ab-507d-4d09-af51-341a147537a0/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1873a8ab-507d-4d09-af51-341a147537a0/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1873a8ab-507d-4d09-af51-341a147537a0/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1873a8ab-507d-4d09-af51-341a147537a0/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1873a8ab-507d-4d09-af51-341a147537a0/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6992add114e455bb94387f79e47de65715ed99025d29a244ffa0e4253f425809 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 01:56:14,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:56:14,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:56:14,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:56:14,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:56:14,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:56:14,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:56:14,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:56:14,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:56:14,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:56:14,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:56:14,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:56:14,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:56:14,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:56:14,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:56:14,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:56:14,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:56:14,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:56:14,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:56:14,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:56:14,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:56:14,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:56:14,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:56:14,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:56:14,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:56:14,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:56:14,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:56:14,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:56:14,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:56:14,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:56:14,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:56:14,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:56:14,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:56:14,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:56:14,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:56:14,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:56:14,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:56:14,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:56:14,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:56:14,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:56:14,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:56:14,518 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1873a8ab-507d-4d09-af51-341a147537a0/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:56:14,556 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:56:14,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:56:14,557 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:56:14,557 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:56:14,558 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:56:14,559 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:56:14,559 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:56:14,559 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:56:14,560 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:56:14,560 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:56:14,561 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:56:14,561 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:56:14,562 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:56:14,562 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:56:14,562 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:56:14,563 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:56:14,563 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:56:14,563 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:56:14,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:56:14,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:56:14,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:56:14,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:56:14,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:56:14,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:56:14,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:56:14,566 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:56:14,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:56:14,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:56:14,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:56:14,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:56:14,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:56:14,568 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:56:14,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:56:14,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:56:14,569 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:56:14,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:56:14,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:56:14,570 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:56:14,570 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_1873a8ab-507d-4d09-af51-341a147537a0/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1873a8ab-507d-4d09-af51-341a147537a0/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6992add114e455bb94387f79e47de65715ed99025d29a244ffa0e4253f425809 [2022-11-03 01:56:14,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:56:14,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:56:14,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:56:14,878 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:56:14,879 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:56:14,880 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1873a8ab-507d-4d09-af51-341a147537a0/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i [2022-11-03 01:56:14,962 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1873a8ab-507d-4d09-af51-341a147537a0/bin/utaipan-7li7fVZpFI/data/fe15a19a4/c8c1fbe668a24b30b5c7f7590171d19a/FLAG9dae495aa [2022-11-03 01:56:15,897 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:56:15,898 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1873a8ab-507d-4d09-af51-341a147537a0/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i [2022-11-03 01:56:15,950 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1873a8ab-507d-4d09-af51-341a147537a0/bin/utaipan-7li7fVZpFI/data/fe15a19a4/c8c1fbe668a24b30b5c7f7590171d19a/FLAG9dae495aa [2022-11-03 01:56:16,290 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1873a8ab-507d-4d09-af51-341a147537a0/bin/utaipan-7li7fVZpFI/data/fe15a19a4/c8c1fbe668a24b30b5c7f7590171d19a [2022-11-03 01:56:16,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:56:16,294 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:56:16,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:56:16,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:56:16,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:56:16,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:56:16" (1/1) ... [2022-11-03 01:56:16,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66d24b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:16, skipping insertion in model container [2022-11-03 01:56:16,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:56:16" (1/1) ... [2022-11-03 01:56:16,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:56:16,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:56:17,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1873a8ab-507d-4d09-af51-341a147537a0/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i[158951,158964] [2022-11-03 01:56:20,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:56:20,248 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:56:20,391 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1873a8ab-507d-4d09-af51-341a147537a0/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i[158951,158964] [2022-11-03 01:56:20,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:56:21,201 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:56:21,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:21 WrapperNode [2022-11-03 01:56:21,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:56:21,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:56:21,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:56:21,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:56:21,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:21" (1/1) ... [2022-11-03 01:56:21,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:21" (1/1) ... [2022-11-03 01:56:22,022 INFO L138 Inliner]: procedures = 488, calls = 4831, calls flagged for inlining = 239, calls inlined = 220, statements flattened = 9739 [2022-11-03 01:56:22,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:56:22,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:56:22,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:56:22,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:56:22,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:21" (1/1) ... [2022-11-03 01:56:22,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:21" (1/1) ... [2022-11-03 01:56:22,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:21" (1/1) ... [2022-11-03 01:56:22,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:21" (1/1) ... [2022-11-03 01:56:23,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:21" (1/1) ... [2022-11-03 01:56:23,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:21" (1/1) ... [2022-11-03 01:56:23,266 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:21" (1/1) ... [2022-11-03 01:56:23,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:21" (1/1) ... [2022-11-03 01:56:23,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:56:23,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:56:23,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:56:23,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:56:23,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:21" (1/1) ... [2022-11-03 01:56:23,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:56:23,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1873a8ab-507d-4d09-af51-341a147537a0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:56:23,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1873a8ab-507d-4d09-af51-341a147537a0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:56:23,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1873a8ab-507d-4d09-af51-341a147537a0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:56:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 01:56:23,462 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 01:56:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_urb_cleanup [2022-11-03 01:56:23,463 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_urb_cleanup [2022-11-03 01:56:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-03 01:56:23,463 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-03 01:56:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-03 01:56:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_resume [2022-11-03 01:56:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_resume [2022-11-03 01:56:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-11-03 01:56:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-11-03 01:56:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:56:23,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:56:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2022-11-03 01:56:23,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2022-11-03 01:56:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-11-03 01:56:23,465 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-11-03 01:56:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_stop_streaming [2022-11-03 01:56:23,466 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_stop_streaming [2022-11-03 01:56:23,466 INFO L130 BoogieDeclarations]: Found specification of procedure vdev_init [2022-11-03 01:56:23,466 INFO L138 BoogieDeclarations]: Found implementation of procedure vdev_init [2022-11-03 01:56:23,466 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_fmt [2022-11-03 01:56:23,466 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_fmt [2022-11-03 01:56:23,466 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_dvbt [2022-11-03 01:56:23,467 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_dvbt [2022-11-03 01:56:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency___0 [2022-11-03 01:56:23,467 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency___0 [2022-11-03 01:56:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure set_tuner_mode [2022-11-03 01:56:23,467 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tuner_mode [2022-11-03 01:56:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_close [2022-11-03 01:56:23,468 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_close [2022-11-03 01:56:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-03 01:56:23,468 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-03 01:56:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_pointer [2022-11-03 01:56:23,469 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_pointer [2022-11-03 01:56:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_vmalloc [2022-11-03 01:56:23,469 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_vmalloc [2022-11-03 01:56:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 01:56:23,469 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 01:56:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-03 01:56:23,470 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-03 01:56:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:56:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_trigger [2022-11-03 01:56:23,470 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_trigger [2022-11-03 01:56:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_radio [2022-11-03 01:56:23,471 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_radio [2022-11-03 01:56:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_pcm_close [2022-11-03 01:56:23,471 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_pcm_close [2022-11-03 01:56:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 01:56:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure check_control_id [2022-11-03 01:56:23,473 INFO L138 BoogieDeclarations]: Found implementation of procedure check_control_id [2022-11-03 01:56:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-03 01:56:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-03 01:56:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-03 01:56:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-03 01:56:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_queue [2022-11-03 01:56:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_queue [2022-11-03 01:56:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 01:56:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-03 01:56:23,475 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-03 01:56:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency [2022-11-03 01:56:23,476 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency [2022-11-03 01:56:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_mmap [2022-11-03 01:56:23,476 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_mmap [2022-11-03 01:56:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-11-03 01:56:23,477 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-11-03 01:56:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:56:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 01:56:23,477 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 01:56:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure usb_transfer_stop [2022-11-03 01:56:23,477 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_transfer_stop [2022-11-03 01:56:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-03 01:56:23,479 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-03 01:56:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_frontend [2022-11-03 01:56:23,479 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_frontend [2022-11-03 01:56:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure is_working [2022-11-03 01:56:23,479 INFO L138 BoogieDeclarations]: Found implementation of procedure is_working [2022-11-03 01:56:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 01:56:23,480 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 01:56:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_suspend [2022-11-03 01:56:23,480 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_suspend [2022-11-03 01:56:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure fire_audio_urb [2022-11-03 01:56:23,481 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_audio_urb [2022-11-03 01:56:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-03 01:56:23,481 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-03 01:56:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_stream [2022-11-03 01:56:23,482 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_stream [2022-11-03 01:56:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2022-11-03 01:56:23,483 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2022-11-03 01:56:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:56:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure get_audio_std [2022-11-03 01:56:23,484 INFO L138 BoogieDeclarations]: Found implementation of procedure get_audio_std [2022-11-03 01:56:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:56:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_poseidon [2022-11-03 01:56:23,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_poseidon [2022-11-03 01:56:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 01:56:23,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 01:56:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:56:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 01:56:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_poseidon [2022-11-03 01:56:23,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_poseidon [2022-11-03 01:56:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_open [2022-11-03 01:56:23,486 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_open [2022-11-03 01:56:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_signal_strength [2022-11-03 01:56:23,487 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_signal_strength [2022-11-03 01:56:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_release [2022-11-03 01:56:23,487 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_release [2022-11-03 01:56:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_open [2022-11-03 01:56:23,487 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_open [2022-11-03 01:56:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:56:23,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:56:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-03 01:56:23,491 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-03 01:56:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2022-11-03 01:56:23,492 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2022-11-03 01:56:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-03 01:56:23,493 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-03 01:56:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure send_set_req [2022-11-03 01:56:23,494 INFO L138 BoogieDeclarations]: Found implementation of procedure send_set_req [2022-11-03 01:56:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 01:56:23,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 01:56:23,500 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2022-11-03 01:56:23,501 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2022-11-03 01:56:23,501 INFO L130 BoogieDeclarations]: Found specification of procedure init_copy [2022-11-03 01:56:23,501 INFO L138 BoogieDeclarations]: Found implementation of procedure init_copy [2022-11-03 01:56:23,501 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-03 01:56:23,501 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-03 01:56:23,501 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bulk_urbs_generic [2022-11-03 01:56:23,502 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bulk_urbs_generic [2022-11-03 01:56:23,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:56:23,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:56:23,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-03 01:56:23,502 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-03 01:56:23,502 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 01:56:23,502 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 01:56:23,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:56:23,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:56:23,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 01:56:23,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 01:56:23,503 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-03 01:56:23,503 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-03 01:56:23,504 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-11-03 01:56:23,504 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-11-03 01:56:23,504 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_pd_get_page [2022-11-03 01:56:23,504 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_pd_get_page [2022-11-03 01:56:23,504 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 01:56:23,504 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 01:56:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-11-03 01:56:23,505 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-11-03 01:56:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb [2022-11-03 01:56:23,505 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb [2022-11-03 01:56:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-03 01:56:23,505 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-03 01:56:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_get_fe [2022-11-03 01:56:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_get_fe [2022-11-03 01:56:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure pd_dvb_usb_device_cleanup [2022-11-03 01:56:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_dvb_usb_device_cleanup [2022-11-03 01:56:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_start_streaming [2022-11-03 01:56:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_start_streaming [2022-11-03 01:56:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 01:56:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 01:56:23,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 01:56:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 01:56:23,507 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2022-11-03 01:56:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2022-11-03 01:56:23,507 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 01:56:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 01:56:23,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 01:56:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 01:56:23,508 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2022-11-03 01:56:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2022-11-03 01:56:23,508 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 01:56:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 01:56:23,509 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-03 01:56:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-03 01:56:23,509 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_tuner [2022-11-03 01:56:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_tuner [2022-11-03 01:56:23,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:56:23,510 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 01:56:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 01:56:23,510 INFO L130 BoogieDeclarations]: Found specification of procedure set_std [2022-11-03 01:56:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure set_std [2022-11-03 01:56:23,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:56:23,511 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb_generic [2022-11-03 01:56:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb_generic [2022-11-03 01:56:23,511 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_ts_bus_ctrl [2022-11-03 01:56:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_ts_bus_ctrl [2022-11-03 01:56:23,511 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_exit [2022-11-03 01:56:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_exit [2022-11-03 01:56:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_open [2022-11-03 01:56:23,512 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_open [2022-11-03 01:56:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-03 01:56:23,512 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-03 01:56:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:56:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 01:56:23,513 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 01:56:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_status [2022-11-03 01:56:23,513 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_status [2022-11-03 01:56:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_stop [2022-11-03 01:56:23,513 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_stop [2022-11-03 01:56:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-03 01:56:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-03 01:56:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_release [2022-11-03 01:56:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_release [2022-11-03 01:56:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 01:56:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 01:56:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-03 01:56:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-03 01:56:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure get_pd [2022-11-03 01:56:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pd [2022-11-03 01:56:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 01:56:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 01:56:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_disconnect [2022-11-03 01:56:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_disconnect [2022-11-03 01:56:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_poll [2022-11-03 01:56:23,516 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_poll [2022-11-03 01:56:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-03 01:56:23,516 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-03 01:56:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure send_get_req [2022-11-03 01:56:23,516 INFO L138 BoogieDeclarations]: Found implementation of procedure send_get_req [2022-11-03 01:56:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2022-11-03 01:56:23,517 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2022-11-03 01:56:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_params [2022-11-03 01:56:23,517 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_params [2022-11-03 01:56:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-03 01:56:23,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-03 01:56:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_unc_blocks [2022-11-03 01:56:23,518 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_unc_blocks [2022-11-03 01:56:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure audio_buf_free [2022-11-03 01:56:23,518 INFO L138 BoogieDeclarations]: Found implementation of procedure audio_buf_free [2022-11-03 01:56:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 01:56:23,518 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 01:56:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_get_tune_settings [2022-11-03 01:56:23,519 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_get_tune_settings [2022-11-03 01:56:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_set_fe [2022-11-03 01:56:23,519 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_set_fe [2022-11-03 01:56:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:56:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_free [2022-11-03 01:56:23,524 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_free [2022-11-03 01:56:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 01:56:23,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 01:56:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_resume [2022-11-03 01:56:23,524 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_resume [2022-11-03 01:56:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_checkmode [2022-11-03 01:56:23,525 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_checkmode [2022-11-03 01:56:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-11-03 01:56:23,525 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-11-03 01:56:23,526 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_ioctl [2022-11-03 01:56:23,527 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_ioctl [2022-11-03 01:56:23,527 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-11-03 01:56:23,527 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-11-03 01:56:23,527 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_vmalloc_init [2022-11-03 01:56:23,527 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_vmalloc_init [2022-11-03 01:56:23,527 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-03 01:56:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-03 01:56:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2022-11-03 01:56:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2022-11-03 01:56:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure get_autopm_ref [2022-11-03 01:56:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure get_autopm_ref [2022-11-03 01:56:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_sleep [2022-11-03 01:56:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_sleep [2022-11-03 01:56:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2022-11-03 01:56:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2022-11-03 01:56:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_setup [2022-11-03 01:56:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_setup [2022-11-03 01:56:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_video_device [2022-11-03 01:56:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_video_device [2022-11-03 01:56:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_ber [2022-11-03 01:56:23,530 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_ber [2022-11-03 01:56:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:56:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure set_debug_mode [2022-11-03 01:56:23,530 INFO L138 BoogieDeclarations]: Found implementation of procedure set_debug_mode [2022-11-03 01:56:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_prepare [2022-11-03 01:56:23,530 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_prepare [2022-11-03 01:56:24,943 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:56:24,946 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:56:35,694 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:01:41,089 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:01:43,622 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:01:43,622 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:01:43,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:01:43 BoogieIcfgContainer [2022-11-03 02:01:43,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:01:43,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:01:43,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:01:43,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:01:43,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:56:16" (1/3) ... [2022-11-03 02:01:43,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2192ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:01:43, skipping insertion in model container [2022-11-03 02:01:43,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:21" (2/3) ... [2022-11-03 02:01:43,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2192ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:01:43, skipping insertion in model container [2022-11-03 02:01:43,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:01:43" (3/3) ... [2022-11-03 02:01:43,638 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i [2022-11-03 02:01:43,659 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:01:43,659 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:01:43,750 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:01:43,756 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;@5e3d3844, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:01:43,756 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:01:43,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 2009 states, 1256 states have (on average 1.3710191082802548) internal successors, (1722), 1287 states have internal predecessors, (1722), 624 states have call successors, (624), 128 states have call predecessors, (624), 127 states have return successors, (611), 610 states have call predecessors, (611), 611 states have call successors, (611) [2022-11-03 02:01:43,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-03 02:01:43,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:01:43,780 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:01:43,780 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:01:43,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:01:43,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1304277382, now seen corresponding path program 1 times [2022-11-03 02:01:43,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:01:43,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693895286] [2022-11-03 02:01:43,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:01:43,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:01:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:01:45,235 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 02:01:45,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:01:45,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693895286] [2022-11-03 02:01:45,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693895286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:01:45,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:01:45,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:01:45,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923455345] [2022-11-03 02:01:45,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:01:45,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:01:45,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:01:45,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:01:45,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:01:45,295 INFO L87 Difference]: Start difference. First operand has 2009 states, 1256 states have (on average 1.3710191082802548) internal successors, (1722), 1287 states have internal predecessors, (1722), 624 states have call successors, (624), 128 states have call predecessors, (624), 127 states have return successors, (611), 610 states have call predecessors, (611), 611 states have call successors, (611) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-03 02:01:47,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:01:50,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:01:53,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:01:56,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:01:59,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:04,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:07,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:09,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:09,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:02:09,788 INFO L93 Difference]: Finished difference Result 5954 states and 8985 transitions. [2022-11-03 02:02:09,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:02:09,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2022-11-03 02:02:09,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:02:09,844 INFO L225 Difference]: With dead ends: 5954 [2022-11-03 02:02:09,844 INFO L226 Difference]: Without dead ends: 3923 [2022-11-03 02:02:09,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:02:09,866 INFO L413 NwaCegarLoop]: 3253 mSDtfsCounter, 2838 mSDsluCounter, 2935 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2844 SdHoareTripleChecker+Valid, 5904 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:02:09,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2844 Valid, 5904 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 580 Invalid, 7 Unknown, 0 Unchecked, 24.1s Time] [2022-11-03 02:02:09,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3923 states. [2022-11-03 02:02:10,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3923 to 3906. [2022-11-03 02:02:10,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3906 states, 2464 states have (on average 1.3603896103896105) internal successors, (3352), 2490 states have internal predecessors, (3352), 1190 states have call successors, (1190), 252 states have call predecessors, (1190), 251 states have return successors, (1188), 1179 states have call predecessors, (1188), 1182 states have call successors, (1188) [2022-11-03 02:02:10,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3906 states to 3906 states and 5730 transitions. [2022-11-03 02:02:10,185 INFO L78 Accepts]: Start accepts. Automaton has 3906 states and 5730 transitions. Word has length 42 [2022-11-03 02:02:10,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:02:10,186 INFO L495 AbstractCegarLoop]: Abstraction has 3906 states and 5730 transitions. [2022-11-03 02:02:10,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-03 02:02:10,187 INFO L276 IsEmpty]: Start isEmpty. Operand 3906 states and 5730 transitions. [2022-11-03 02:02:10,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-03 02:02:10,199 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:02:10,199 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:02:10,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:02:10,200 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:02:10,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:02:10,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1227410900, now seen corresponding path program 1 times [2022-11-03 02:02:10,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:02:10,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784957] [2022-11-03 02:02:10,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:10,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:02:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:11,304 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 02:02:11,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:02:11,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784957] [2022-11-03 02:02:11,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:02:11,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:02:11,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:02:11,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635502373] [2022-11-03 02:02:11,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:02:11,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:02:11,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:02:11,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:02:11,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:02:11,307 INFO L87 Difference]: Start difference. First operand 3906 states and 5730 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-03 02:02:13,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:15,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:19,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:21,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:02:24,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:26,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:29,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:02:31,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:33,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:34,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:02:34,947 INFO L93 Difference]: Finished difference Result 11603 states and 17026 transitions. [2022-11-03 02:02:34,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:02:34,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2022-11-03 02:02:34,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:02:35,009 INFO L225 Difference]: With dead ends: 11603 [2022-11-03 02:02:35,009 INFO L226 Difference]: Without dead ends: 7706 [2022-11-03 02:02:35,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:02:35,032 INFO L413 NwaCegarLoop]: 3230 mSDtfsCounter, 2795 mSDsluCounter, 2891 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2797 SdHoareTripleChecker+Valid, 5840 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:02:35,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2797 Valid, 5840 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 584 Invalid, 6 Unknown, 0 Unchecked, 23.3s Time] [2022-11-03 02:02:35,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7706 states. [2022-11-03 02:02:35,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7706 to 7698. [2022-11-03 02:02:35,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 4869 states have (on average 1.361675908810844) internal successors, (6630), 4915 states have internal predecessors, (6630), 2330 states have call successors, (2330), 499 states have call predecessors, (2330), 498 states have return successors, (2336), 2315 states have call predecessors, (2336), 2322 states have call successors, (2336) [2022-11-03 02:02:35,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 11296 transitions. [2022-11-03 02:02:35,417 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 11296 transitions. Word has length 42 [2022-11-03 02:02:35,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:02:35,417 INFO L495 AbstractCegarLoop]: Abstraction has 7698 states and 11296 transitions. [2022-11-03 02:02:35,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-03 02:02:35,418 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 11296 transitions. [2022-11-03 02:02:35,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-03 02:02:35,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:02:35,420 INFO L195 NwaCegarLoop]: trace histogram [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, 1] [2022-11-03 02:02:35,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:02:35,420 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:02:35,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:02:35,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1105081888, now seen corresponding path program 1 times [2022-11-03 02:02:35,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:02:35,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996021784] [2022-11-03 02:02:35,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:35,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:02:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:36,103 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 02:02:36,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:02:36,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996021784] [2022-11-03 02:02:36,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996021784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:02:36,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:02:36,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:02:36,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810587740] [2022-11-03 02:02:36,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:02:36,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:02:36,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:02:36,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:02:36,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:02:36,105 INFO L87 Difference]: Start difference. First operand 7698 states and 11296 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-03 02:02:38,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:43,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:45,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:02:48,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:51,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:54,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:56,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:59,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:02:59,036 INFO L93 Difference]: Finished difference Result 22942 states and 33657 transitions. [2022-11-03 02:02:59,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:02:59,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 48 [2022-11-03 02:02:59,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:02:59,156 INFO L225 Difference]: With dead ends: 22942 [2022-11-03 02:02:59,156 INFO L226 Difference]: Without dead ends: 15253 [2022-11-03 02:02:59,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:02:59,202 INFO L413 NwaCegarLoop]: 3236 mSDtfsCounter, 2782 mSDsluCounter, 2897 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2786 SdHoareTripleChecker+Valid, 5849 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:02:59,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2786 Valid, 5849 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 593 Invalid, 6 Unknown, 0 Unchecked, 22.5s Time] [2022-11-03 02:02:59,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15253 states. [2022-11-03 02:02:59,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15253 to 15234. [2022-11-03 02:02:59,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15234 states, 9637 states have (on average 1.3616270623638063) internal successors, (13122), 9723 states have internal predecessors, (13122), 4600 states have call successors, (4600), 997 states have call predecessors, (4600), 996 states have return successors, (4626), 4577 states have call predecessors, (4626), 4592 states have call successors, (4626) [2022-11-03 02:03:00,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15234 states to 15234 states and 22348 transitions. [2022-11-03 02:03:00,047 INFO L78 Accepts]: Start accepts. Automaton has 15234 states and 22348 transitions. Word has length 48 [2022-11-03 02:03:00,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:03:00,047 INFO L495 AbstractCegarLoop]: Abstraction has 15234 states and 22348 transitions. [2022-11-03 02:03:00,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-03 02:03:00,049 INFO L276 IsEmpty]: Start isEmpty. Operand 15234 states and 22348 transitions. [2022-11-03 02:03:00,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-03 02:03:00,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:03:00,053 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:03:00,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:03:00,053 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:03:00,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:03:00,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1141249516, now seen corresponding path program 1 times [2022-11-03 02:03:00,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:03:00,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284357876] [2022-11-03 02:03:00,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:00,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:03:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:00,968 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 02:03:00,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:03:00,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284357876] [2022-11-03 02:03:00,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284357876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:03:00,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:03:00,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:03:00,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773240204] [2022-11-03 02:03:00,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:03:00,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:03:00,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:03:00,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:03:00,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:03:00,971 INFO L87 Difference]: Start difference. First operand 15234 states and 22348 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:03:03,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:04,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:07,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:12,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:15,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:03:17,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:19,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:23,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:25,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:26,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:03:26,352 INFO L93 Difference]: Finished difference Result 41398 states and 60725 transitions. [2022-11-03 02:03:26,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:03:26,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2022-11-03 02:03:26,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:03:26,493 INFO L225 Difference]: With dead ends: 41398 [2022-11-03 02:03:26,494 INFO L226 Difference]: Without dead ends: 26173 [2022-11-03 02:03:26,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:03:26,562 INFO L413 NwaCegarLoop]: 3479 mSDtfsCounter, 2092 mSDsluCounter, 2891 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 6092 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:03:26,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2095 Valid, 6092 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 658 Invalid, 7 Unknown, 0 Unchecked, 24.5s Time] [2022-11-03 02:03:26,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26173 states. [2022-11-03 02:03:27,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26173 to 26128. [2022-11-03 02:03:28,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26128 states, 16655 states have (on average 1.3706394476133292) internal successors, (22828), 16787 states have internal predecessors, (22828), 7728 states have call successors, (7728), 1745 states have call predecessors, (7728), 1744 states have return successors, (7778), 7683 states have call predecessors, (7778), 7720 states have call successors, (7778) [2022-11-03 02:03:28,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26128 states to 26128 states and 38334 transitions. [2022-11-03 02:03:28,160 INFO L78 Accepts]: Start accepts. Automaton has 26128 states and 38334 transitions. Word has length 62 [2022-11-03 02:03:28,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:03:28,162 INFO L495 AbstractCegarLoop]: Abstraction has 26128 states and 38334 transitions. [2022-11-03 02:03:28,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:03:28,162 INFO L276 IsEmpty]: Start isEmpty. Operand 26128 states and 38334 transitions. [2022-11-03 02:03:28,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-03 02:03:28,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:03:28,166 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:03:28,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:03:28,166 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:03:28,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:03:28,167 INFO L85 PathProgramCache]: Analyzing trace with hash -285883661, now seen corresponding path program 1 times [2022-11-03 02:03:28,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:03:28,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224210048] [2022-11-03 02:03:28,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:28,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:03:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:29,168 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:03:29,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:03:29,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224210048] [2022-11-03 02:03:29,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224210048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:03:29,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:03:29,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:03:29,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365708165] [2022-11-03 02:03:29,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:03:29,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:03:29,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:03:29,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:03:29,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:03:29,170 INFO L87 Difference]: Start difference. First operand 26128 states and 38334 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:03:31,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:33,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:36,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:39,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:42,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:03:45,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:49,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:51,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:53,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:03:53,707 INFO L93 Difference]: Finished difference Result 70169 states and 103353 transitions. [2022-11-03 02:03:53,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:03:53,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2022-11-03 02:03:53,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:03:53,928 INFO L225 Difference]: With dead ends: 70169 [2022-11-03 02:03:53,929 INFO L226 Difference]: Without dead ends: 44050 [2022-11-03 02:03:54,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:03:54,029 INFO L413 NwaCegarLoop]: 3137 mSDtfsCounter, 2364 mSDsluCounter, 2649 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 5 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2368 SdHoareTripleChecker+Valid, 5526 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:03:54,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2368 Valid, 5526 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 570 Invalid, 8 Unknown, 0 Unchecked, 23.5s Time] [2022-11-03 02:03:54,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44050 states. [2022-11-03 02:03:56,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44050 to 43966. [2022-11-03 02:03:56,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43966 states, 28525 states have (on average 1.3874145486415426) internal successors, (39576), 29126 states have internal predecessors, (39576), 12402 states have call successors, (12402), 3186 states have call predecessors, (12402), 3038 states have return successors, (12836), 11789 states have call predecessors, (12836), 12392 states have call successors, (12836) [2022-11-03 02:03:56,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43966 states to 43966 states and 64814 transitions. [2022-11-03 02:03:56,640 INFO L78 Accepts]: Start accepts. Automaton has 43966 states and 64814 transitions. Word has length 58 [2022-11-03 02:03:56,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:03:56,641 INFO L495 AbstractCegarLoop]: Abstraction has 43966 states and 64814 transitions. [2022-11-03 02:03:56,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:03:56,641 INFO L276 IsEmpty]: Start isEmpty. Operand 43966 states and 64814 transitions. [2022-11-03 02:03:56,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-03 02:03:56,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:03:56,646 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:03:56,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:03:56,646 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:03:56,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:03:56,647 INFO L85 PathProgramCache]: Analyzing trace with hash -273533548, now seen corresponding path program 1 times [2022-11-03 02:03:56,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:03:56,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207066906] [2022-11-03 02:03:56,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:56,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:03:56,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:57,487 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:03:57,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:03:57,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207066906] [2022-11-03 02:03:57,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207066906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:03:57,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:03:57,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:03:57,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525272588] [2022-11-03 02:03:57,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:03:57,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:03:57,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:03:57,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:03:57,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:03:57,489 INFO L87 Difference]: Start difference. First operand 43966 states and 64814 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:03:59,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:01,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:04,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:06,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:08,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:04:12,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:15,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:18,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:21,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:24,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:04:26,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:04:26,211 INFO L93 Difference]: Finished difference Result 131761 states and 194295 transitions. [2022-11-03 02:04:26,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:04:26,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2022-11-03 02:04:26,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:04:26,640 INFO L225 Difference]: With dead ends: 131761 [2022-11-03 02:04:26,641 INFO L226 Difference]: Without dead ends: 87804 [2022-11-03 02:04:26,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:04:27,035 INFO L413 NwaCegarLoop]: 3225 mSDtfsCounter, 2868 mSDsluCounter, 2893 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2870 SdHoareTripleChecker+Valid, 5835 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:04:27,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2870 Valid, 5835 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 575 Invalid, 7 Unknown, 0 Unchecked, 26.3s Time] [2022-11-03 02:04:27,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87804 states. [2022-11-03 02:04:30,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87804 to 87739. [2022-11-03 02:04:30,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87739 states, 56943 states have (on average 1.387808861493072) internal successors, (79026), 58147 states have internal predecessors, (79026), 24743 states have call successors, (24743), 6347 states have call predecessors, (24743), 6052 states have return successors, (25628), 23516 states have call predecessors, (25628), 24732 states have call successors, (25628) [2022-11-03 02:04:31,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87739 states to 87739 states and 129397 transitions. [2022-11-03 02:04:31,572 INFO L78 Accepts]: Start accepts. Automaton has 87739 states and 129397 transitions. Word has length 59 [2022-11-03 02:04:31,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:04:31,573 INFO L495 AbstractCegarLoop]: Abstraction has 87739 states and 129397 transitions. [2022-11-03 02:04:31,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:04:31,573 INFO L276 IsEmpty]: Start isEmpty. Operand 87739 states and 129397 transitions. [2022-11-03 02:04:31,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-03 02:04:31,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:04:31,576 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:04:31,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:04:31,577 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:04:31,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:04:31,577 INFO L85 PathProgramCache]: Analyzing trace with hash 109324822, now seen corresponding path program 1 times [2022-11-03 02:04:31,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:04:31,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794503136] [2022-11-03 02:04:31,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:31,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:04:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:32,594 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:04:32,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:04:32,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794503136] [2022-11-03 02:04:32,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794503136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:04:32,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:04:32,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:04:32,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761799451] [2022-11-03 02:04:32,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:04:32,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:04:32,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:04:32,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:04:32,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:04:32,596 INFO L87 Difference]: Start difference. First operand 87739 states and 129397 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:04:34,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:37,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:40,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:42,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:04:45,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:50,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:54,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:59,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:02,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:03,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:05:03,591 INFO L93 Difference]: Finished difference Result 175443 states and 258757 transitions. [2022-11-03 02:05:03,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:05:03,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2022-11-03 02:05:03,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:05:04,858 INFO L225 Difference]: With dead ends: 175443 [2022-11-03 02:05:04,858 INFO L226 Difference]: Without dead ends: 175440 [2022-11-03 02:05:04,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:05:04,934 INFO L413 NwaCegarLoop]: 3235 mSDtfsCounter, 2869 mSDsluCounter, 2902 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2873 SdHoareTripleChecker+Valid, 5853 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:05:04,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2873 Valid, 5853 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 575 Invalid, 7 Unknown, 0 Unchecked, 25.6s Time] [2022-11-03 02:05:05,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175440 states. [2022-11-03 02:05:13,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175440 to 175408. [2022-11-03 02:05:13,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175408 states, 113844 states have (on average 1.387899230525983) internal successors, (158004), 116254 states have internal predecessors, (158004), 49463 states have call successors, (49463), 12691 states have call predecessors, (49463), 12100 states have return successors, (51252), 47006 states have call predecessors, (51252), 49452 states have call successors, (51252)