./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-cache.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51050eda-63b3-441c-925c-a727c3dbf99b/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51050eda-63b3-441c-925c-a727c3dbf99b/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51050eda-63b3-441c-925c-a727c3dbf99b/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51050eda-63b3-441c-925c-a727c3dbf99b/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-cache.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51050eda-63b3-441c-925c-a727c3dbf99b/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51050eda-63b3-441c-925c-a727c3dbf99b/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c5e11c32abc44e06be1403f1da490e5e9ddc476b4dd1edb72148385c1e2a0b21 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:15:31,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:15:31,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:15:31,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:15:31,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:15:31,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:15:31,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:15:31,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:15:31,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:15:31,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:15:31,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:15:31,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:15:31,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:15:31,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:15:31,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:15:31,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:15:31,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:15:31,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:15:31,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:15:31,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:15:31,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:15:31,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:15:31,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:15:31,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:15:31,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:15:31,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:15:31,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:15:31,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:15:31,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:15:31,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:15:31,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:15:31,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:15:31,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:15:31,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:15:31,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:15:31,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:15:31,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:15:31,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:15:31,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:15:31,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:15:31,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:15:31,447 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51050eda-63b3-441c-925c-a727c3dbf99b/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-07 01:15:31,465 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:15:31,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:15:31,466 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:15:31,466 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:15:31,466 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:15:31,466 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:15:31,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:15:31,467 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:15:31,467 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:15:31,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:15:31,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:15:31,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:15:31,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:15:31,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:15:31,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:15:31,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:15:31,468 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:15:31,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:15:31,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:15:31,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:15:31,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:15:31,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:15:31,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:15:31,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:15:31,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:15:31,469 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:15:31,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:15:31,470 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:15:31,470 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:15:31,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:15:31,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:15:31,470 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_51050eda-63b3-441c-925c-a727c3dbf99b/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51050eda-63b3-441c-925c-a727c3dbf99b/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5e11c32abc44e06be1403f1da490e5e9ddc476b4dd1edb72148385c1e2a0b21 [2021-12-07 01:15:31,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:15:31,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:15:31,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:15:31,678 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:15:31,679 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:15:31,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51050eda-63b3-441c-925c-a727c3dbf99b/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2021-12-07 01:15:31,729 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51050eda-63b3-441c-925c-a727c3dbf99b/bin/uautomizer-DrprNOufMa/data/133a2eaa8/62c4020d9f8444ed8c282c15b38c4992/FLAG067911aa1 [2021-12-07 01:15:32,410 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:15:32,410 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51050eda-63b3-441c-925c-a727c3dbf99b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2021-12-07 01:15:32,448 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51050eda-63b3-441c-925c-a727c3dbf99b/bin/uautomizer-DrprNOufMa/data/133a2eaa8/62c4020d9f8444ed8c282c15b38c4992/FLAG067911aa1 [2021-12-07 01:15:32,773 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51050eda-63b3-441c-925c-a727c3dbf99b/bin/uautomizer-DrprNOufMa/data/133a2eaa8/62c4020d9f8444ed8c282c15b38c4992 [2021-12-07 01:15:32,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:15:32,785 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:15:32,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:15:32,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:15:32,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:15:32,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:15:32" (1/1) ... [2021-12-07 01:15:32,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73f834fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:32, skipping insertion in model container [2021-12-07 01:15:32,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:15:32" (1/1) ... [2021-12-07 01:15:32,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:15:33,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:15:36,073 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_51050eda-63b3-441c-925c-a727c3dbf99b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-cache.ko-entry_point.cil.out.i[382358,382371] [2021-12-07 01:15:36,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:15:36,276 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:15:36,617 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_51050eda-63b3-441c-925c-a727c3dbf99b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-cache.ko-entry_point.cil.out.i[382358,382371] [2021-12-07 01:15:36,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:15:36,792 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:15:36,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:36 WrapperNode [2021-12-07 01:15:36,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:15:36,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:15:36,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:15:36,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:15:36,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:36" (1/1) ... [2021-12-07 01:15:36,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:36" (1/1) ... [2021-12-07 01:15:37,044 INFO L137 Inliner]: procedures = 664, calls = 4061, calls flagged for inlining = 272, calls inlined = 262, statements flattened = 9806 [2021-12-07 01:15:37,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:15:37,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:15:37,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:15:37,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:15:37,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:36" (1/1) ... [2021-12-07 01:15:37,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:36" (1/1) ... [2021-12-07 01:15:37,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:36" (1/1) ... [2021-12-07 01:15:37,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:36" (1/1) ... [2021-12-07 01:15:37,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:36" (1/1) ... [2021-12-07 01:15:37,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:36" (1/1) ... [2021-12-07 01:15:37,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:36" (1/1) ... [2021-12-07 01:15:37,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:15:37,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:15:37,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:15:37,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:15:37,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:36" (1/1) ... [2021-12-07 01:15:37,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:15:37,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51050eda-63b3-441c-925c-a727c3dbf99b/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:15:37,331 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51050eda-63b3-441c-925c-a727c3dbf99b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:15:37,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51050eda-63b3-441c-925c-a727c3dbf99b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:15:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure resize_cache_dev [2021-12-07 01:15:37,370 INFO L138 BoogieDeclarations]: Found implementation of procedure resize_cache_dev [2021-12-07 01:15:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure block_size_is_power_of_two [2021-12-07 01:15:37,370 INFO L138 BoogieDeclarations]: Found implementation of procedure block_size_is_power_of_two [2021-12-07 01:15:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-07 01:15:37,370 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-07 01:15:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_manager_destroy [2021-12-07 01:15:37,370 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_manager_destroy [2021-12-07 01:15:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2021-12-07 01:15:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2021-12-07 01:15:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_sm_root [2021-12-07 01:15:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_sm_root [2021-12-07 01:15:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure bio_writes_complete_block [2021-12-07 01:15:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_writes_complete_block [2021-12-07 01:15:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-12-07 01:15:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_pre_commit [2021-12-07 01:15:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_pre_commit [2021-12-07 01:15:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2021-12-07 01:15:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2021-12-07 01:15:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure cache_map [2021-12-07 01:15:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_map [2021-12-07 01:15:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-07 01:15:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-07 01:15:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure process_migrations [2021-12-07 01:15:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure process_migrations [2021-12-07 01:15:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure remap_cell_to_origin_clear_discard [2021-12-07 01:15:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_cell_to_origin_clear_discard [2021-12-07 01:15:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_checksum [2021-12-07 01:15:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_checksum [2021-12-07 01:15:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-12-07 01:15:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-12-07 01:15:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure put_policy [2021-12-07 01:15:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure put_policy [2021-12-07 01:15:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_tick_bio_needed [2021-12-07 01:15:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_tick_bio_needed [2021-12-07 01:15:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-07 01:15:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-07 01:15:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure update_flags [2021-12-07 01:15:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure update_flags [2021-12-07 01:15:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure calc_discard_block_range [2021-12-07 01:15:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_discard_block_range [2021-12-07 01:15:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2021-12-07 01:15:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2021-12-07 01:15:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_release_no_holder [2021-12-07 01:15:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure free_bitset [2021-12-07 01:15:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure free_bitset [2021-12-07 01:15:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure commit_if_needed [2021-12-07 01:15:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure commit_if_needed [2021-12-07 01:15:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-07 01:15:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-07 01:15:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-07 01:15:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-07 01:15:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure get_per_bio_data [2021-12-07 01:15:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure get_per_bio_data [2021-12-07 01:15:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin_then_cache [2021-12-07 01:15:37,377 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin_then_cache [2021-12-07 01:15:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-07 01:15:37,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-07 01:15:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_remove_mapping [2021-12-07 01:15:37,377 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_remove_mapping [2021-12-07 01:15:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure dblock_to_oblock [2021-12-07 01:15:37,377 INFO L138 BoogieDeclarations]: Found implementation of procedure dblock_to_oblock [2021-12-07 01:15:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-07 01:15:37,378 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-07 01:15:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin [2021-12-07 01:15:37,378 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin [2021-12-07 01:15:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bitset [2021-12-07 01:15:37,378 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bitset [2021-12-07 01:15:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure bio_detain_range [2021-12-07 01:15:37,378 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_detain_range [2021-12-07 01:15:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure from_cblock [2021-12-07 01:15:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure from_cblock [2021-12-07 01:15:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure writethrough_mode [2021-12-07 01:15:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure writethrough_mode [2021-12-07 01:15:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure write_dirty_bitset [2021-12-07 01:15:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure write_dirty_bitset [2021-12-07 01:15:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-07 01:15:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-07 01:15:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure writeback_mode [2021-12-07 01:15:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure writeback_mode [2021-12-07 01:15:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure cache_postsuspend [2021-12-07 01:15:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_postsuspend [2021-12-07 01:15:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_get_migration [2021-12-07 01:15:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_get_migration [2021-12-07 01:15:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure issue_copy_or_discard [2021-12-07 01:15:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_copy_or_discard [2021-12-07 01:15:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure cache_dtr [2021-12-07 01:15:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_dtr [2021-12-07 01:15:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-12-07 01:15:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-12-07 01:15:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-07 01:15:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_prison_cell [2021-12-07 01:15:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_prison_cell [2021-12-07 01:15:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_version [2021-12-07 01:15:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_version [2021-12-07 01:15:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-07 01:15:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-07 01:15:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-07 01:15:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-07 01:15:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure __create_persistent_data_objects [2021-12-07 01:15:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_persistent_data_objects [2021-12-07 01:15:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 01:15:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure get_per_bio_data_size [2021-12-07 01:15:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure get_per_bio_data_size [2021-12-07 01:15:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_resize [2021-12-07 01:15:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_resize [2021-12-07 01:15:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-07 01:15:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-07 01:15:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure accounted_request [2021-12-07 01:15:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure accounted_request [2021-12-07 01:15:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure pack_value [2021-12-07 01:15:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure pack_value [2021-12-07 01:15:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-07 01:15:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-07 01:15:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_empty [2021-12-07 01:15:37,385 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_empty [2021-12-07 01:15:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-07 01:15:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure clear_discard [2021-12-07 01:15:37,385 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_discard [2021-12-07 01:15:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_get_cell [2021-12-07 01:15:37,385 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_get_cell [2021-12-07 01:15:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-07 01:15:37,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-07 01:15:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure process_deferred_flush_bios [2021-12-07 01:15:37,386 INFO L138 BoogieDeclarations]: Found implementation of procedure process_deferred_flush_bios [2021-12-07 01:15:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure cell_defer [2021-12-07 01:15:37,386 INFO L138 BoogieDeclarations]: Found implementation of procedure cell_defer [2021-12-07 01:15:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-07 01:15:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_commit [2021-12-07 01:15:37,386 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_commit [2021-12-07 01:15:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure sb_check [2021-12-07 01:15:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_check [2021-12-07 01:15:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_destroy [2021-12-07 01:15:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_destroy [2021-12-07 01:15:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure cache_device_name [2021-12-07 01:15:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_device_name [2021-12-07 01:15:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 01:15:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure get_policy_once [2021-12-07 01:15:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure get_policy_once [2021-12-07 01:15:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure issue [2021-12-07 01:15:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure issue [2021-12-07 01:15:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-07 01:15:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-07 01:15:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure inc_and_issue [2021-12-07 01:15:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_and_issue [2021-12-07 01:15:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure write_discard_bitset [2021-12-07 01:15:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure write_discard_bitset [2021-12-07 01:15:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure sync_metadata [2021-12-07 01:15:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_metadata [2021-12-07 01:15:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-12-07 01:15:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-12-07 01:15:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure set_discard_range [2021-12-07 01:15:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure set_discard_range [2021-12-07 01:15:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure policy_unchanged [2021-12-07 01:15:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_unchanged [2021-12-07 01:15:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-07 01:15:37,390 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-07 01:15:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure set_config_value [2021-12-07 01:15:37,390 INFO L138 BoogieDeclarations]: Found implementation of procedure set_config_value [2021-12-07 01:15:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure stop_worker [2021-12-07 01:15:37,390 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_worker [2021-12-07 01:15:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_19 [2021-12-07 01:15:37,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_19 [2021-12-07 01:15:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-07 01:15:37,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-07 01:15:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure policy_force_mapping [2021-12-07 01:15:37,391 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_force_mapping [2021-12-07 01:15:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin_clear_discard [2021-12-07 01:15:37,391 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin_clear_discard [2021-12-07 01:15:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure __save_sm_root [2021-12-07 01:15:37,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __save_sm_root [2021-12-07 01:15:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-07 01:15:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2021-12-07 01:15:37,392 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2021-12-07 01:15:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure blocks_are_unmapped_or_clean [2021-12-07 01:15:37,392 INFO L138 BoogieDeclarations]: Found implementation of procedure blocks_are_unmapped_or_clean [2021-12-07 01:15:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-07 01:15:37,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-07 01:15:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:15:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure do_worker [2021-12-07 01:15:37,393 INFO L138 BoogieDeclarations]: Found implementation of procedure do_worker [2021-12-07 01:15:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2021-12-07 01:15:37,393 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2021-12-07 01:15:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure build_key [2021-12-07 01:15:37,393 INFO L138 BoogieDeclarations]: Found implementation of procedure build_key [2021-12-07 01:15:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-07 01:15:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-07 01:15:37,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-07 01:15:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure write_hints [2021-12-07 01:15:37,394 INFO L138 BoogieDeclarations]: Found implementation of procedure write_hints [2021-12-07 01:15:37,394 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2021-12-07 01:15:37,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2021-12-07 01:15:37,394 INFO L130 BoogieDeclarations]: Found specification of procedure __find_policy [2021-12-07 01:15:37,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_policy [2021-12-07 01:15:37,394 INFO L130 BoogieDeclarations]: Found specification of procedure policy_tick [2021-12-07 01:15:37,394 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_tick [2021-12-07 01:15:37,394 INFO L130 BoogieDeclarations]: Found specification of procedure cache_resume [2021-12-07 01:15:37,395 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_resume [2021-12-07 01:15:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2021-12-07 01:15:37,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2021-12-07 01:15:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_metadata_close [2021-12-07 01:15:37,395 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_metadata_close [2021-12-07 01:15:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_hint_size [2021-12-07 01:15:37,395 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_hint_size [2021-12-07 01:15:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-07 01:15:37,395 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-07 01:15:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_pop [2021-12-07 01:15:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_pop [2021-12-07 01:15:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure free_migration [2021-12-07 01:15:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure free_migration [2021-12-07 01:15:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-07 01:15:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-07 01:15:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure passthrough_mode [2021-12-07 01:15:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure passthrough_mode [2021-12-07 01:15:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure get_cache_mode [2021-12-07 01:15:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cache_mode [2021-12-07 01:15:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure to_cblock [2021-12-07 01:15:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure to_cblock [2021-12-07 01:15:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure cache_iterate_devices [2021-12-07 01:15:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_iterate_devices [2021-12-07 01:15:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure to_oblock [2021-12-07 01:15:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure to_oblock [2021-12-07 01:15:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-12-07 01:15:37,398 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-12-07 01:15:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure block_div [2021-12-07 01:15:37,398 INFO L138 BoogieDeclarations]: Found implementation of procedure block_div [2021-12-07 01:15:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-07 01:15:37,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-07 01:15:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-07 01:15:37,398 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-07 01:15:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure oblocks_per_dblock [2021-12-07 01:15:37,399 INFO L138 BoogieDeclarations]: Found implementation of procedure oblocks_per_dblock [2021-12-07 01:15:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure policy_set_dirty [2021-12-07 01:15:37,399 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_set_dirty [2021-12-07 01:15:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure set_cache_size [2021-12-07 01:15:37,399 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cache_size [2021-12-07 01:15:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure cache_message [2021-12-07 01:15:37,399 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_message [2021-12-07 01:15:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-07 01:15:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-07 01:15:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure inc_ds [2021-12-07 01:15:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_ds [2021-12-07 01:15:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:15:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:15:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure inc_hit_counter [2021-12-07 01:15:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_hit_counter [2021-12-07 01:15:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-07 01:15:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-07 01:15:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_visit_release [2021-12-07 01:15:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cell_visit_release [2021-12-07 01:15:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure commit [2021-12-07 01:15:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure commit [2021-12-07 01:15:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2021-12-07 01:15:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2021-12-07 01:15:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure cache_io_hints [2021-12-07 01:15:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_io_hints [2021-12-07 01:15:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure cache_end_io [2021-12-07 01:15:37,402 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_end_io [2021-12-07 01:15:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure accounted_begin [2021-12-07 01:15:37,402 INFO L138 BoogieDeclarations]: Found implementation of procedure accounted_begin [2021-12-07 01:15:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-07 01:15:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-07 01:15:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-07 01:15:37,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-07 01:15:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_metadata_abort [2021-12-07 01:15:37,403 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_metadata_abort [2021-12-07 01:15:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure read_superblock_fields [2021-12-07 01:15:37,403 INFO L138 BoogieDeclarations]: Found implementation of procedure read_superblock_fields [2021-12-07 01:15:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_min [2021-12-07 01:15:37,403 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_min [2021-12-07 01:15:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure inc_miss_counter [2021-12-07 01:15:37,403 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_miss_counter [2021-12-07 01:15:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure migration_failure [2021-12-07 01:15:37,403 INFO L138 BoogieDeclarations]: Found implementation of procedure migration_failure [2021-12-07 01:15:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure dm_hook_bio [2021-12-07 01:15:37,404 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_hook_bio [2021-12-07 01:15:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_set_value [2021-12-07 01:15:37,404 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_set_value [2021-12-07 01:15:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure free_io_migration [2021-12-07 01:15:37,404 INFO L138 BoogieDeclarations]: Found implementation of procedure free_io_migration [2021-12-07 01:15:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure do_waker [2021-12-07 01:15:37,404 INFO L138 BoogieDeclarations]: Found implementation of procedure do_waker [2021-12-07 01:15:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_18 [2021-12-07 01:15:37,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_18 [2021-12-07 01:15:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure get_dev_size [2021-12-07 01:15:37,405 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dev_size [2021-12-07 01:15:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure is_discarded_oblock [2021-12-07 01:15:37,405 INFO L138 BoogieDeclarations]: Found implementation of procedure is_discarded_oblock [2021-12-07 01:15:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bitset [2021-12-07 01:15:37,405 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bitset [2021-12-07 01:15:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-07 01:15:37,405 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-07 01:15:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure __setup_mapping_info [2021-12-07 01:15:37,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __setup_mapping_info [2021-12-07 01:15:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-07 01:15:37,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-07 01:15:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-07 01:15:37,406 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-07 01:15:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure bitset_size_in_bytes [2021-12-07 01:15:37,406 INFO L138 BoogieDeclarations]: Found implementation of procedure bitset_size_in_bytes [2021-12-07 01:15:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-07 01:15:37,407 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-07 01:15:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-07 01:15:37,407 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-07 01:15:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_is_read_only [2021-12-07 01:15:37,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_is_read_only [2021-12-07 01:15:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-07 01:15:37,407 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-07 01:15:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_location [2021-12-07 01:15:37,408 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_location [2021-12-07 01:15:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg_group [2021-12-07 01:15:37,408 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg_group [2021-12-07 01:15:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dirty [2021-12-07 01:15:37,408 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dirty [2021-12-07 01:15:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-07 01:15:37,408 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-07 01:15:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure dm_kcopyd_copy [2021-12-07 01:15:37,408 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_kcopyd_copy [2021-12-07 01:15:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-07 01:15:37,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-07 01:15:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure quiesce_migration [2021-12-07 01:15:37,409 INFO L138 BoogieDeclarations]: Found implementation of procedure quiesce_migration [2021-12-07 01:15:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_event [2021-12-07 01:15:37,409 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_event [2021-12-07 01:15:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_opt [2021-12-07 01:15:37,409 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_opt [2021-12-07 01:15:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2021-12-07 01:15:37,410 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2021-12-07 01:15:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-07 01:15:37,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-07 01:15:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 01:15:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-07 01:15:37,410 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-07 01:15:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2021-12-07 01:15:37,410 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2021-12-07 01:15:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure free_prison_cell [2021-12-07 01:15:37,411 INFO L138 BoogieDeclarations]: Found implementation of procedure free_prison_cell [2021-12-07 01:15:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-07 01:15:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure __format_metadata [2021-12-07 01:15:37,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __format_metadata [2021-12-07 01:15:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-12-07 01:15:37,411 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-12-07 01:15:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure discard_or_flush [2021-12-07 01:15:37,411 INFO L138 BoogieDeclarations]: Found implementation of procedure discard_or_flush [2021-12-07 01:15:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_data_structs [2021-12-07 01:15:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_data_structs [2021-12-07 01:15:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-12-07 01:15:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-12-07 01:15:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure unpack_value [2021-12-07 01:15:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure unpack_value [2021-12-07 01:15:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure dm_sm_destroy [2021-12-07 01:15:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_sm_destroy [2021-12-07 01:15:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure superblock_read_lock [2021-12-07 01:15:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure superblock_read_lock [2021-12-07 01:15:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-07 01:15:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_data [2021-12-07 01:15:37,413 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_data [2021-12-07 01:15:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure from_dblock [2021-12-07 01:15:37,413 INFO L138 BoogieDeclarations]: Found implementation of procedure from_dblock [2021-12-07 01:15:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-07 01:15:37,413 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-07 01:15:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-07 01:15:37,414 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-07 01:15:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-07 01:15:37,414 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-07 01:15:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure cache_bvec_merge [2021-12-07 01:15:37,414 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_bvec_merge [2021-12-07 01:15:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-07 01:15:37,414 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-07 01:15:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure is_dirty [2021-12-07 01:15:37,414 INFO L138 BoogieDeclarations]: Found implementation of procedure is_dirty [2021-12-07 01:15:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure __open_or_format_metadata [2021-12-07 01:15:37,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __open_or_format_metadata [2021-12-07 01:15:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_init [2021-12-07 01:15:37,415 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_init [2021-12-07 01:15:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-12-07 01:15:37,415 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-12-07 01:15:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_get_value [2021-12-07 01:15:37,415 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_get_value [2021-12-07 01:15:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_empty [2021-12-07 01:15:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_empty [2021-12-07 01:15:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure set_dirty [2021-12-07 01:15:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure set_dirty [2021-12-07 01:15:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2021-12-07 01:15:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2021-12-07 01:15:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_walk [2021-12-07 01:15:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_walk [2021-12-07 01:15:37,417 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-07 01:15:37,417 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-07 01:15:37,417 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_cache [2021-12-07 01:15:37,417 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_cache [2021-12-07 01:15:37,417 INFO L130 BoogieDeclarations]: Found specification of procedure oblock_to_dblock [2021-12-07 01:15:37,417 INFO L138 BoogieDeclarations]: Found implementation of procedure oblock_to_dblock [2021-12-07 01:15:37,417 INFO L130 BoogieDeclarations]: Found specification of procedure wake_worker [2021-12-07 01:15:37,417 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_worker [2021-12-07 01:15:37,417 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_free_structs [2021-12-07 01:15:37,418 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_free_structs [2021-12-07 01:15:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure dm_disk_bitset_init [2021-12-07 01:15:37,418 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_disk_bitset_init [2021-12-07 01:15:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure set_discard [2021-12-07 01:15:37,418 INFO L138 BoogieDeclarations]: Found implementation of procedure set_discard [2021-12-07 01:15:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure get_bio_block [2021-12-07 01:15:37,418 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bio_block [2021-12-07 01:15:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure destroy [2021-12-07 01:15:37,418 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy [2021-12-07 01:15:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_read_lock [2021-12-07 01:15:37,419 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_read_lock [2021-12-07 01:15:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-07 01:15:37,419 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-07 01:15:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_release [2021-12-07 01:15:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure is_quiescing [2021-12-07 01:15:37,419 INFO L138 BoogieDeclarations]: Found implementation of procedure is_quiescing [2021-12-07 01:15:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-07 01:15:37,419 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-07 01:15:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure abort_transaction [2021-12-07 01:15:37,420 INFO L138 BoogieDeclarations]: Found implementation of procedure abort_transaction [2021-12-07 01:15:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 01:15:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure set_cache_mode [2021-12-07 01:15:37,420 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cache_mode [2021-12-07 01:15:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_info_init [2021-12-07 01:15:37,420 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_info_init [2021-12-07 01:15:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-07 01:15:37,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-07 01:15:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure from_oblock [2021-12-07 01:15:37,421 INFO L138 BoogieDeclarations]: Found implementation of procedure from_oblock [2021-12-07 01:15:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-07 01:15:37,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-07 01:15:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure superblock_lock [2021-12-07 01:15:37,421 INFO L138 BoogieDeclarations]: Found implementation of procedure superblock_lock [2021-12-07 01:15:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_copy [2021-12-07 01:15:37,421 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_copy [2021-12-07 01:15:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-07 01:15:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-07 01:15:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_name [2021-12-07 01:15:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_name [2021-12-07 01:15:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure spare_migration_bandwidth [2021-12-07 01:15:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure spare_migration_bandwidth [2021-12-07 01:15:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_add [2021-12-07 01:15:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_add [2021-12-07 01:15:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure remap_cell_to_cache_dirty [2021-12-07 01:15:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_cell_to_cache_dirty [2021-12-07 01:15:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_put_cell [2021-12-07 01:15:37,423 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_put_cell [2021-12-07 01:15:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-12-07 01:15:37,423 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2021-12-07 01:15:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure defer_bio [2021-12-07 01:15:37,423 INFO L138 BoogieDeclarations]: Found implementation of procedure defer_bio [2021-12-07 01:15:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure metadata_operation_failed [2021-12-07 01:15:37,423 INFO L138 BoogieDeclarations]: Found implementation of procedure metadata_operation_failed [2021-12-07 01:15:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_table_lock [2021-12-07 01:15:37,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_table_lock [2021-12-07 01:15:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-07 01:15:37,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-07 01:15:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure dm_shift_arg [2021-12-07 01:15:37,424 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_shift_arg [2021-12-07 01:15:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure process_invalidation_requests [2021-12-07 01:15:37,424 INFO L138 BoogieDeclarations]: Found implementation of procedure process_invalidation_requests [2021-12-07 01:15:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_table_lock [2021-12-07 01:15:37,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_table_lock [2021-12-07 01:15:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-07 01:15:37,425 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-07 01:15:37,425 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_merge [2021-12-07 01:15:37,425 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_merge [2021-12-07 01:15:37,425 INFO L130 BoogieDeclarations]: Found specification of procedure policy_remove_mapping [2021-12-07 01:15:37,425 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_remove_mapping [2021-12-07 01:15:37,425 INFO L130 BoogieDeclarations]: Found specification of procedure to_dblock [2021-12-07 01:15:37,425 INFO L138 BoogieDeclarations]: Found implementation of procedure to_dblock [2021-12-07 01:15:37,425 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-12-07 01:15:37,425 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-12-07 01:15:37,425 INFO L130 BoogieDeclarations]: Found specification of procedure bio_detain [2021-12-07 01:15:37,426 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_detain [2021-12-07 01:15:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2021-12-07 01:15:37,426 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2021-12-07 01:15:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure at_least_one_arg [2021-12-07 01:15:37,426 INFO L138 BoogieDeclarations]: Found implementation of procedure at_least_one_arg [2021-12-07 01:15:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure __queue_quiesced_migration [2021-12-07 01:15:37,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __queue_quiesced_migration [2021-12-07 01:15:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure inc_io_migrations [2021-12-07 01:15:37,426 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_io_migrations [2021-12-07 01:15:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free_slab [2021-12-07 01:15:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure policy_map [2021-12-07 01:15:37,427 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_map [2021-12-07 01:15:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bio_prison_free_cell [2021-12-07 01:15:37,427 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bio_prison_free_cell [2021-12-07 01:15:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_destroy [2021-12-07 01:15:37,427 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_destroy [2021-12-07 01:15:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure complete_migration [2021-12-07 01:15:37,427 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_migration [2021-12-07 01:15:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-07 01:15:37,427 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-07 01:15:37,428 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-07 01:15:37,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-07 01:15:37,428 INFO L130 BoogieDeclarations]: Found specification of procedure __destroy_persistent_data_objects [2021-12-07 01:15:37,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __destroy_persistent_data_objects [2021-12-07 01:15:37,428 INFO L130 BoogieDeclarations]: Found specification of procedure lookup [2021-12-07 01:15:37,428 INFO L138 BoogieDeclarations]: Found implementation of procedure lookup [2021-12-07 01:15:37,428 INFO L130 BoogieDeclarations]: Found specification of procedure process_invalidation_request [2021-12-07 01:15:37,428 INFO L138 BoogieDeclarations]: Found implementation of procedure process_invalidation_request [2021-12-07 01:15:37,428 INFO L130 BoogieDeclarations]: Found specification of procedure migration_success_pre_commit [2021-12-07 01:15:37,428 INFO L138 BoogieDeclarations]: Found implementation of procedure migration_success_pre_commit [2021-12-07 01:15:37,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:15:37,429 INFO L130 BoogieDeclarations]: Found specification of procedure cache_status [2021-12-07 01:15:37,429 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_status [2021-12-07 01:15:37,429 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_unlock [2021-12-07 01:15:37,429 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_unlock [2021-12-07 01:15:37,429 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2021-12-07 01:15:37,429 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2021-12-07 01:15:37,429 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-07 01:15:37,429 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dm_oblock_t~0~TO~VOID [2021-12-07 01:15:37,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dm_oblock_t~0~TO~VOID [2021-12-07 01:15:37,430 INFO L130 BoogieDeclarations]: Found specification of procedure process_cell [2021-12-07 01:15:37,430 INFO L138 BoogieDeclarations]: Found implementation of procedure process_cell [2021-12-07 01:15:38,166 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:15:38,170 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:15:38,767 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-07 01:15:46,601 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:15:46,626 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:15:46,626 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-07 01:15:46,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:15:46 BoogieIcfgContainer [2021-12-07 01:15:46,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:15:46,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:15:46,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:15:46,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:15:46,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:15:32" (1/3) ... [2021-12-07 01:15:46,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796cff87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:15:46, skipping insertion in model container [2021-12-07 01:15:46,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:36" (2/3) ... [2021-12-07 01:15:46,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796cff87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:15:46, skipping insertion in model container [2021-12-07 01:15:46,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:15:46" (3/3) ... [2021-12-07 01:15:46,636 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2021-12-07 01:15:46,640 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:15:46,640 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 01:15:46,693 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:15:46,698 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 01:15:46,698 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 01:15:46,780 INFO L276 IsEmpty]: Start isEmpty. Operand has 3883 states, 2503 states have (on average 1.2744706352377146) internal successors, (3190), 2589 states have internal predecessors, (3190), 1134 states have call successors, (1134), 245 states have call predecessors, (1134), 244 states have return successors, (1128), 1099 states have call predecessors, (1128), 1128 states have call successors, (1128) [2021-12-07 01:15:46,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-12-07 01:15:46,794 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:15:46,795 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:15:46,796 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:15:46,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:15:46,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1010070639, now seen corresponding path program 1 times [2021-12-07 01:15:46,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:15:46,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072350039] [2021-12-07 01:15:46,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:15:46,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:15:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:15:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 01:15:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 01:15:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-07 01:15:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:47,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 01:15:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:15:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:47,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-07 01:15:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:47,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:47,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-07 01:15:47,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 01:15:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-07 01:15:47,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-07 01:15:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-07 01:15:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-07 01:15:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-07 01:15:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-07 01:15:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-07 01:15:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 01:15:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:47,658 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-07 01:15:47,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:15:47,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072350039] [2021-12-07 01:15:47,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072350039] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:15:47,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:15:47,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:15:47,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025037553] [2021-12-07 01:15:47,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:15:47,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:15:47,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:15:47,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:15:47,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:15:47,692 INFO L87 Difference]: Start difference. First operand has 3883 states, 2503 states have (on average 1.2744706352377146) internal successors, (3190), 2589 states have internal predecessors, (3190), 1134 states have call successors, (1134), 245 states have call predecessors, (1134), 244 states have return successors, (1128), 1099 states have call predecessors, (1128), 1128 states have call successors, (1128) Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 01:15:51,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:15:56,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:15:57,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:15:57,046 INFO L93 Difference]: Finished difference Result 8452 states and 12355 transitions. [2021-12-07 01:15:57,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 01:15:57,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 253 [2021-12-07 01:15:57,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:15:57,089 INFO L225 Difference]: With dead ends: 8452 [2021-12-07 01:15:57,089 INFO L226 Difference]: Without dead ends: 4553 [2021-12-07 01:15:57,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:15:57,119 INFO L933 BasicCegarLoop]: 4930 mSDtfsCounter, 4301 mSDsluCounter, 2172 mSDsCounter, 0 mSdLazyCounter, 2290 mSolverCounterSat, 5063 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4410 SdHoareTripleChecker+Valid, 7102 SdHoareTripleChecker+Invalid, 7353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5063 IncrementalHoareTripleChecker+Valid, 2290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-12-07 01:15:57,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4410 Valid, 7102 Invalid, 7353 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5063 Valid, 2290 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2021-12-07 01:15:57,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4553 states. [2021-12-07 01:15:57,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4553 to 3862. [2021-12-07 01:15:57,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 2490 states have (on average 1.2690763052208835) internal successors, (3160), 2568 states have internal predecessors, (3160), 1128 states have call successors, (1128), 244 states have call predecessors, (1128), 243 states have return successors, (1122), 1093 states have call predecessors, (1122), 1122 states have call successors, (1122) [2021-12-07 01:15:57,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 5410 transitions. [2021-12-07 01:15:57,419 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 5410 transitions. Word has length 253 [2021-12-07 01:15:57,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:15:57,419 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 5410 transitions. [2021-12-07 01:15:57,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 01:15:57,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 5410 transitions. [2021-12-07 01:15:57,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-12-07 01:15:57,425 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:15:57,425 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:15:57,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 01:15:57,426 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:15:57,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:15:57,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1808246337, now seen corresponding path program 1 times [2021-12-07 01:15:57,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:15:57,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543799050] [2021-12-07 01:15:57,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:15:57,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:15:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:15:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 01:15:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 01:15:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-07 01:15:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 01:15:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:15:57,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-07 01:15:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-07 01:15:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 01:15:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:57,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-07 01:15:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-07 01:15:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-07 01:15:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-07 01:15:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-07 01:15:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-07 01:15:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-07 01:15:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:57,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 01:15:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:57,982 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-07 01:15:57,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:15:57,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543799050] [2021-12-07 01:15:57,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543799050] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:15:57,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:15:57,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:15:57,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117149333] [2021-12-07 01:15:57,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:15:57,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:15:57,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:15:57,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:15:57,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:15:57,986 INFO L87 Difference]: Start difference. First operand 3862 states and 5410 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 01:16:02,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:16:06,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:16:07,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:16:08,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:16:08,501 INFO L93 Difference]: Finished difference Result 4555 states and 6593 transitions. [2021-12-07 01:16:08,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:16:08,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 253 [2021-12-07 01:16:08,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:16:08,527 INFO L225 Difference]: With dead ends: 4555 [2021-12-07 01:16:08,527 INFO L226 Difference]: Without dead ends: 4552 [2021-12-07 01:16:08,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:16:08,529 INFO L933 BasicCegarLoop]: 4833 mSDtfsCounter, 8982 mSDsluCounter, 2153 mSDsCounter, 0 mSdLazyCounter, 2354 mSolverCounterSat, 6155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9622 SdHoareTripleChecker+Valid, 6986 SdHoareTripleChecker+Invalid, 8509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6155 IncrementalHoareTripleChecker+Valid, 2354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:16:08,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9622 Valid, 6986 Invalid, 8509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6155 Valid, 2354 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2021-12-07 01:16:08,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4552 states. [2021-12-07 01:16:08,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4552 to 3861. [2021-12-07 01:16:08,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3861 states, 2490 states have (on average 1.2686746987951807) internal successors, (3159), 2567 states have internal predecessors, (3159), 1127 states have call successors, (1127), 244 states have call predecessors, (1127), 243 states have return successors, (1122), 1093 states have call predecessors, (1122), 1122 states have call successors, (1122) [2021-12-07 01:16:08,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3861 states to 3861 states and 5408 transitions. [2021-12-07 01:16:08,676 INFO L78 Accepts]: Start accepts. Automaton has 3861 states and 5408 transitions. Word has length 253 [2021-12-07 01:16:08,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:16:08,677 INFO L470 AbstractCegarLoop]: Abstraction has 3861 states and 5408 transitions. [2021-12-07 01:16:08,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 01:16:08,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3861 states and 5408 transitions. [2021-12-07 01:16:08,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-12-07 01:16:08,681 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:16:08,681 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:16:08,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 01:16:08,681 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:16:08,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:16:08,681 INFO L85 PathProgramCache]: Analyzing trace with hash -223027263, now seen corresponding path program 1 times [2021-12-07 01:16:08,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:16:08,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049078282] [2021-12-07 01:16:08,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:16:08,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:16:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:16:08,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 01:16:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 01:16:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-07 01:16:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 01:16:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:16:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-07 01:16:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-07 01:16:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 01:16:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-07 01:16:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-07 01:16:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-07 01:16:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-07 01:16:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-07 01:16:09,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-07 01:16:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-07 01:16:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 01:16:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:09,173 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-07 01:16:09,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:16:09,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049078282] [2021-12-07 01:16:09,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049078282] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:16:09,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:16:09,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:16:09,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502867937] [2021-12-07 01:16:09,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:16:09,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:16:09,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:16:09,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:16:09,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:16:09,176 INFO L87 Difference]: Start difference. First operand 3861 states and 5408 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 01:16:14,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:16:16,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:16:22,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:16:24,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:16:24,456 INFO L93 Difference]: Finished difference Result 4554 states and 6591 transitions. [2021-12-07 01:16:24,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:16:24,456 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 254 [2021-12-07 01:16:24,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:16:24,481 INFO L225 Difference]: With dead ends: 4554 [2021-12-07 01:16:24,481 INFO L226 Difference]: Without dead ends: 4551 [2021-12-07 01:16:24,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:16:24,483 INFO L933 BasicCegarLoop]: 4822 mSDtfsCounter, 7802 mSDsluCounter, 3706 mSDsCounter, 0 mSdLazyCounter, 3635 mSolverCounterSat, 4587 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8451 SdHoareTripleChecker+Valid, 8528 SdHoareTripleChecker+Invalid, 8223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4587 IncrementalHoareTripleChecker+Valid, 3635 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:16:24,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8451 Valid, 8528 Invalid, 8223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4587 Valid, 3635 Invalid, 1 Unknown, 0 Unchecked, 15.0s Time] [2021-12-07 01:16:24,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4551 states. [2021-12-07 01:16:24,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4551 to 3860. [2021-12-07 01:16:24,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3860 states, 2490 states have (on average 1.2682730923694778) internal successors, (3158), 2566 states have internal predecessors, (3158), 1126 states have call successors, (1126), 244 states have call predecessors, (1126), 243 states have return successors, (1122), 1093 states have call predecessors, (1122), 1122 states have call successors, (1122) [2021-12-07 01:16:24,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3860 states to 3860 states and 5406 transitions. [2021-12-07 01:16:24,633 INFO L78 Accepts]: Start accepts. Automaton has 3860 states and 5406 transitions. Word has length 254 [2021-12-07 01:16:24,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:16:24,634 INFO L470 AbstractCegarLoop]: Abstraction has 3860 states and 5406 transitions. [2021-12-07 01:16:24,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 01:16:24,634 INFO L276 IsEmpty]: Start isEmpty. Operand 3860 states and 5406 transitions. [2021-12-07 01:16:24,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-12-07 01:16:24,638 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:16:24,638 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:16:24,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 01:16:24,638 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:16:24,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:16:24,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1674128642, now seen corresponding path program 1 times [2021-12-07 01:16:24,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:16:24,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46741296] [2021-12-07 01:16:24,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:16:24,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:16:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:16:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 01:16:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 01:16:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:24,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-07 01:16:24,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:24,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:24,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 01:16:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:16:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-07 01:16:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:24,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-07 01:16:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 01:16:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-07 01:16:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-07 01:16:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-07 01:16:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-07 01:16:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-07 01:16:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-07 01:16:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:25,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-07 01:16:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 01:16:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:25,169 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-07 01:16:25,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:16:25,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46741296] [2021-12-07 01:16:25,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46741296] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:16:25,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:16:25,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:16:25,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78151815] [2021-12-07 01:16:25,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:16:25,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:16:25,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:16:25,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:16:25,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:16:25,172 INFO L87 Difference]: Start difference. First operand 3860 states and 5406 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 01:16:30,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:16:37,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:16:39,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:16:40,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:16:40,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:16:40,423 INFO L93 Difference]: Finished difference Result 4553 states and 6589 transitions. [2021-12-07 01:16:40,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:16:40,423 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 255 [2021-12-07 01:16:40,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:16:40,446 INFO L225 Difference]: With dead ends: 4553 [2021-12-07 01:16:40,446 INFO L226 Difference]: Without dead ends: 4550 [2021-12-07 01:16:40,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:16:40,448 INFO L933 BasicCegarLoop]: 4842 mSDtfsCounter, 7413 mSDsluCounter, 3938 mSDsCounter, 0 mSdLazyCounter, 3658 mSolverCounterSat, 4369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8047 SdHoareTripleChecker+Valid, 8780 SdHoareTripleChecker+Invalid, 8027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4369 IncrementalHoareTripleChecker+Valid, 3658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:16:40,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8047 Valid, 8780 Invalid, 8027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4369 Valid, 3658 Invalid, 0 Unknown, 0 Unchecked, 15.0s Time] [2021-12-07 01:16:40,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4550 states. [2021-12-07 01:16:40,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4550 to 3859. [2021-12-07 01:16:40,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3859 states, 2490 states have (on average 1.2678714859437752) internal successors, (3157), 2565 states have internal predecessors, (3157), 1125 states have call successors, (1125), 244 states have call predecessors, (1125), 243 states have return successors, (1122), 1093 states have call predecessors, (1122), 1122 states have call successors, (1122) [2021-12-07 01:16:40,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3859 states to 3859 states and 5404 transitions. [2021-12-07 01:16:40,607 INFO L78 Accepts]: Start accepts. Automaton has 3859 states and 5404 transitions. Word has length 255 [2021-12-07 01:16:40,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:16:40,607 INFO L470 AbstractCegarLoop]: Abstraction has 3859 states and 5404 transitions. [2021-12-07 01:16:40,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 01:16:40,608 INFO L276 IsEmpty]: Start isEmpty. Operand 3859 states and 5404 transitions. [2021-12-07 01:16:40,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-12-07 01:16:40,612 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:16:40,612 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:16:40,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 01:16:40,612 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:16:40,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:16:40,613 INFO L85 PathProgramCache]: Analyzing trace with hash 356424420, now seen corresponding path program 1 times [2021-12-07 01:16:40,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:16:40,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849239389] [2021-12-07 01:16:40,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:16:40,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:16:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:16:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 01:16:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 01:16:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-07 01:16:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 01:16:40,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:16:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-07 01:16:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-07 01:16:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 01:16:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-07 01:16:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-07 01:16:40,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:40,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:41,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-07 01:16:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:41,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:41,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-07 01:16:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:41,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:41,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-07 01:16:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:41,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:41,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-07 01:16:41,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:41,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:41,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-07 01:16:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:41,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:41,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 01:16:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:41,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:41,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:41,070 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-07 01:16:41,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:16:41,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849239389] [2021-12-07 01:16:41,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849239389] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:16:41,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:16:41,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:16:41,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227002848] [2021-12-07 01:16:41,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:16:41,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:16:41,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:16:41,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:16:41,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:16:41,072 INFO L87 Difference]: Start difference. First operand 3859 states and 5404 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 01:16:44,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-07 01:16:49,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:16:56,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:16:59,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:17:00,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:17:03,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:17:05,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:17:05,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:17:05,987 INFO L93 Difference]: Finished difference Result 4563 states and 6596 transitions. [2021-12-07 01:17:05,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:17:05,988 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 256 [2021-12-07 01:17:05,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:17:06,010 INFO L225 Difference]: With dead ends: 4563 [2021-12-07 01:17:06,010 INFO L226 Difference]: Without dead ends: 4550 [2021-12-07 01:17:06,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:17:06,015 INFO L933 BasicCegarLoop]: 4836 mSDtfsCounter, 7419 mSDsluCounter, 5511 mSDsCounter, 0 mSdLazyCounter, 4966 mSolverCounterSat, 4403 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8020 SdHoareTripleChecker+Valid, 10347 SdHoareTripleChecker+Invalid, 9371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4403 IncrementalHoareTripleChecker+Valid, 4966 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2021-12-07 01:17:06,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8020 Valid, 10347 Invalid, 9371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4403 Valid, 4966 Invalid, 2 Unknown, 0 Unchecked, 24.6s Time] [2021-12-07 01:17:06,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4550 states. [2021-12-07 01:17:06,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4550 to 3859. [2021-12-07 01:17:06,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3859 states, 2489 states have (on average 1.2667738047408599) internal successors, (3153), 2562 states have internal predecessors, (3153), 1123 states have call successors, (1123), 247 states have call predecessors, (1123), 246 states have return successors, (1122), 1093 states have call predecessors, (1122), 1122 states have call successors, (1122) [2021-12-07 01:17:06,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3859 states to 3859 states and 5398 transitions. [2021-12-07 01:17:06,176 INFO L78 Accepts]: Start accepts. Automaton has 3859 states and 5398 transitions. Word has length 256 [2021-12-07 01:17:06,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:17:06,177 INFO L470 AbstractCegarLoop]: Abstraction has 3859 states and 5398 transitions. [2021-12-07 01:17:06,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 01:17:06,177 INFO L276 IsEmpty]: Start isEmpty. Operand 3859 states and 5398 transitions. [2021-12-07 01:17:06,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2021-12-07 01:17:06,183 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:17:06,183 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:17:06,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 01:17:06,183 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:17:06,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:17:06,184 INFO L85 PathProgramCache]: Analyzing trace with hash -126581329, now seen corresponding path program 1 times [2021-12-07 01:17:06,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:17:06,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284326888] [2021-12-07 01:17:06,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:17:06,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:17:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:17:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 01:17:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 01:17:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-07 01:17:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 01:17:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:17:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-07 01:17:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-07 01:17:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 01:17:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-07 01:17:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:06,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-07 01:17:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-07 01:17:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-07 01:17:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-07 01:17:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-07 01:17:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-07 01:17:06,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 01:17:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-07 01:17:06,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-07 01:17:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-07 01:17:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:06,552 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-07 01:17:06,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:17:06,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284326888] [2021-12-07 01:17:06,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284326888] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:17:06,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:17:06,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:17:06,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580303068] [2021-12-07 01:17:06,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:17:06,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:17:06,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:17:06,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:17:06,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:17:06,554 INFO L87 Difference]: Start difference. First operand 3859 states and 5398 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 01:17:09,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:17:18,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:17:29,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:17:32,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:17:34,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:17:35,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:17:37,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:17:39,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:17:39,371 INFO L93 Difference]: Finished difference Result 12793 states and 18484 transitions. [2021-12-07 01:17:39,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 01:17:39,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 288 [2021-12-07 01:17:39,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:17:39,411 INFO L225 Difference]: With dead ends: 12793 [2021-12-07 01:17:39,412 INFO L226 Difference]: Without dead ends: 8973 [2021-12-07 01:17:39,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-12-07 01:17:39,429 INFO L933 BasicCegarLoop]: 5336 mSDtfsCounter, 12284 mSDsluCounter, 7779 mSDsCounter, 0 mSdLazyCounter, 12639 mSolverCounterSat, 12090 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13073 SdHoareTripleChecker+Valid, 13115 SdHoareTripleChecker+Invalid, 24730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12090 IncrementalHoareTripleChecker+Valid, 12639 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:17:39,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13073 Valid, 13115 Invalid, 24730 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12090 Valid, 12639 Invalid, 1 Unknown, 0 Unchecked, 32.1s Time] [2021-12-07 01:17:39,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8973 states. [2021-12-07 01:17:39,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8973 to 6577. [2021-12-07 01:17:39,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6577 states, 4212 states have (on average 1.255460588793922) internal successors, (5288), 4356 states have internal predecessors, (5288), 1905 states have call successors, (1905), 460 states have call predecessors, (1905), 459 states have return successors, (1904), 1846 states have call predecessors, (1904), 1904 states have call successors, (1904) [2021-12-07 01:17:39,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6577 states to 6577 states and 9097 transitions. [2021-12-07 01:17:39,764 INFO L78 Accepts]: Start accepts. Automaton has 6577 states and 9097 transitions. Word has length 288 [2021-12-07 01:17:39,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:17:39,765 INFO L470 AbstractCegarLoop]: Abstraction has 6577 states and 9097 transitions. [2021-12-07 01:17:39,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 01:17:39,765 INFO L276 IsEmpty]: Start isEmpty. Operand 6577 states and 9097 transitions. [2021-12-07 01:17:39,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-12-07 01:17:39,775 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:17:39,775 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:17:39,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 01:17:39,775 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:17:39,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:17:39,776 INFO L85 PathProgramCache]: Analyzing trace with hash 568969091, now seen corresponding path program 1 times [2021-12-07 01:17:39,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:17:39,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586468163] [2021-12-07 01:17:39,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:17:39,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:17:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:17:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 01:17:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 01:17:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-07 01:17:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 01:17:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:17:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-07 01:17:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-07 01:17:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 01:17:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-07 01:17:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-07 01:17:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-07 01:17:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-07 01:17:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-07 01:17:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-07 01:17:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-07 01:17:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 01:17:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-07 01:17:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-07 01:17:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-07 01:17:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:40,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-07 01:17:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-12-07 01:17:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-12-07 01:17:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1022 trivial. 0 not checked. [2021-12-07 01:17:40,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:17:40,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586468163] [2021-12-07 01:17:40,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586468163] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:17:40,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:17:40,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:17:40,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388787204] [2021-12-07 01:17:40,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:17:40,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:17:40,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:17:40,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:17:40,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:17:40,275 INFO L87 Difference]: Start difference. First operand 6577 states and 9097 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-07 01:17:44,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:17:48,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:17:55,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:17:58,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:18:11,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:18:13,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:18:14,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:18:18,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:18:21,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:18:30,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:18:32,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:18:33,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:18:36,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:18:37,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:18:38,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:18:38,718 INFO L93 Difference]: Finished difference Result 20212 states and 29230 transitions. [2021-12-07 01:18:38,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-07 01:18:38,719 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 341 [2021-12-07 01:18:38,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:18:38,767 INFO L225 Difference]: With dead ends: 20212 [2021-12-07 01:18:38,767 INFO L226 Difference]: Without dead ends: 13674 [2021-12-07 01:18:38,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-12-07 01:18:38,791 INFO L933 BasicCegarLoop]: 7117 mSDtfsCounter, 10959 mSDsluCounter, 12955 mSDsCounter, 0 mSdLazyCounter, 21171 mSolverCounterSat, 11135 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11898 SdHoareTripleChecker+Valid, 20072 SdHoareTripleChecker+Invalid, 32307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11135 IncrementalHoareTripleChecker+Valid, 21171 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:18:38,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11898 Valid, 20072 Invalid, 32307 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11135 Valid, 21171 Invalid, 1 Unknown, 0 Unchecked, 57.4s Time] [2021-12-07 01:18:38,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13674 states. [2021-12-07 01:18:39,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13674 to 9647. [2021-12-07 01:18:39,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9647 states, 6200 states have (on average 1.252741935483871) internal successors, (7767), 6417 states have internal predecessors, (7767), 2761 states have call successors, (2761), 686 states have call predecessors, (2761), 685 states have return successors, (2760), 2673 states have call predecessors, (2760), 2760 states have call successors, (2760) [2021-12-07 01:18:39,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9647 states to 9647 states and 13288 transitions. [2021-12-07 01:18:39,285 INFO L78 Accepts]: Start accepts. Automaton has 9647 states and 13288 transitions. Word has length 341 [2021-12-07 01:18:39,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:18:39,286 INFO L470 AbstractCegarLoop]: Abstraction has 9647 states and 13288 transitions. [2021-12-07 01:18:39,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-07 01:18:39,286 INFO L276 IsEmpty]: Start isEmpty. Operand 9647 states and 13288 transitions. [2021-12-07 01:18:39,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2021-12-07 01:18:39,295 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:18:39,295 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:18:39,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 01:18:39,295 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:18:39,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:18:39,296 INFO L85 PathProgramCache]: Analyzing trace with hash 367447164, now seen corresponding path program 1 times [2021-12-07 01:18:39,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:18:39,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658808535] [2021-12-07 01:18:39,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:18:39,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:18:39,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:18:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:18:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 01:18:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:18:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 01:18:39,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:18:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-07 01:18:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:18:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 01:18:39,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:18:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:18:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:18:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-07 01:18:39,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:18:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-07 01:18:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:18:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 01:18:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:18:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-07 01:18:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-07 01:18:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-07 01:18:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-07 01:18:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-07 01:18:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-07 01:18:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-07 01:18:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 01:18:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-07 01:18:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-07 01:18:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-07 01:18:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-07 01:18:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-07 01:18:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-12-07 01:18:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-07 01:18:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:39,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-07 01:18:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:40,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-07 01:18:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:40,016 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-07 01:18:40,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:18:40,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658808535] [2021-12-07 01:18:40,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658808535] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:18:40,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:18:40,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:18:40,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795057558] [2021-12-07 01:18:40,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:18:40,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:18:40,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:18:40,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:18:40,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:18:40,019 INFO L87 Difference]: Start difference. First operand 9647 states and 13288 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (39), 7 states have call predecessors, (39), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-07 01:18:43,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:18:50,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:19:02,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:19:04,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:19:06,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:19:07,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:19:11,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:19:11,245 INFO L93 Difference]: Finished difference Result 13298 states and 19409 transitions. [2021-12-07 01:19:11,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 01:19:11,245 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (39), 7 states have call predecessors, (39), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 343 [2021-12-07 01:19:11,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:19:11,248 INFO L225 Difference]: With dead ends: 13298 [2021-12-07 01:19:11,248 INFO L226 Difference]: Without dead ends: 0 [2021-12-07 01:19:11,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:19:11,277 INFO L933 BasicCegarLoop]: 4483 mSDtfsCounter, 5559 mSDsluCounter, 7660 mSDsCounter, 0 mSdLazyCounter, 11995 mSolverCounterSat, 5794 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6134 SdHoareTripleChecker+Valid, 12143 SdHoareTripleChecker+Invalid, 17789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5794 IncrementalHoareTripleChecker+Valid, 11995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2021-12-07 01:19:11,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6134 Valid, 12143 Invalid, 17789 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5794 Valid, 11995 Invalid, 0 Unknown, 0 Unchecked, 30.5s Time] [2021-12-07 01:19:11,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-07 01:19:11,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-07 01:19:11,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:19:11,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-07 01:19:11,280 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 343 [2021-12-07 01:19:11,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:19:11,281 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 01:19:11,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (39), 7 states have call predecessors, (39), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-07 01:19:11,281 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-07 01:19:11,281 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-07 01:19:11,283 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-07 01:19:11,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-07 01:19:11,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.