./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 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2115e33-69bb-491c-8573-bf5ca2633cdb/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2115e33-69bb-491c-8573-bf5ca2633cdb/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2115e33-69bb-491c-8573-bf5ca2633cdb/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2115e33-69bb-491c-8573-bf5ca2633cdb/bin/uautomizer-Dbtcem3rbc/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_e2115e33-69bb-491c-8573-bf5ca2633cdb/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2115e33-69bb-491c-8573-bf5ca2633cdb/bin/uautomizer-Dbtcem3rbc --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:42:02,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:42:02,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:42:02,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:42:02,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:42:02,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:42:02,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:42:02,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:42:02,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:42:02,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:42:02,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:42:02,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:42:02,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:42:02,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:42:02,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:42:02,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:42:02,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:42:02,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:42:02,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:42:02,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:42:02,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:42:02,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:42:02,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:42:02,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:42:02,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:42:02,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:42:02,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:42:02,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:42:02,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:42:02,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:42:02,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:42:02,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:42:02,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:42:02,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:42:02,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:42:02,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:42:02,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:42:02,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:42:02,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:42:02,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:42:02,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:42:02,571 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2115e33-69bb-491c-8573-bf5ca2633cdb/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:42:02,616 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:42:02,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:42:02,617 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:42:02,617 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:42:02,618 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:42:02,618 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:42:02,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:42:02,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:42:02,619 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:42:02,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:42:02,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:42:02,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:42:02,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:42:02,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:42:02,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:42:02,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:42:02,622 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:42:02,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:42:02,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:42:02,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:42:02,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:42:02,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:42:02,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:42:02,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:42:02,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:42:02,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:42:02,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:42:02,624 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:42:02,624 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:42:02,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:42:02,624 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_e2115e33-69bb-491c-8573-bf5ca2633cdb/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2115e33-69bb-491c-8573-bf5ca2633cdb/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5e11c32abc44e06be1403f1da490e5e9ddc476b4dd1edb72148385c1e2a0b21 [2022-11-02 20:42:02,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:42:02,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:42:02,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:42:02,991 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:42:02,992 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:42:02,994 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2115e33-69bb-491c-8573-bf5ca2633cdb/bin/uautomizer-Dbtcem3rbc/../../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 [2022-11-02 20:42:03,081 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2115e33-69bb-491c-8573-bf5ca2633cdb/bin/uautomizer-Dbtcem3rbc/data/1365fcda7/7f0bebacc55143cab31e4534b19fb2c5/FLAGae1ae3ab7 [2022-11-02 20:42:04,095 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:42:04,096 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2115e33-69bb-491c-8573-bf5ca2633cdb/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 [2022-11-02 20:42:04,181 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2115e33-69bb-491c-8573-bf5ca2633cdb/bin/uautomizer-Dbtcem3rbc/data/1365fcda7/7f0bebacc55143cab31e4534b19fb2c5/FLAGae1ae3ab7 [2022-11-02 20:42:04,451 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2115e33-69bb-491c-8573-bf5ca2633cdb/bin/uautomizer-Dbtcem3rbc/data/1365fcda7/7f0bebacc55143cab31e4534b19fb2c5 [2022-11-02 20:42:04,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:42:04,457 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:42:04,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:42:04,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:42:04,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:42:04,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:42:04" (1/1) ... [2022-11-02 20:42:04,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fb9411f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:04, skipping insertion in model container [2022-11-02 20:42:04,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:42:04" (1/1) ... [2022-11-02 20:42:04,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:42:04,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:42:08,928 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_e2115e33-69bb-491c-8573-bf5ca2633cdb/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] [2022-11-02 20:42:09,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:42:09,242 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:42:09,868 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_e2115e33-69bb-491c-8573-bf5ca2633cdb/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] [2022-11-02 20:42:09,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:42:10,172 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:42:10,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:10 WrapperNode [2022-11-02 20:42:10,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:42:10,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:42:10,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:42:10,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:42:10,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:10" (1/1) ... [2022-11-02 20:42:10,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:10" (1/1) ... [2022-11-02 20:42:10,749 INFO L138 Inliner]: procedures = 664, calls = 4061, calls flagged for inlining = 272, calls inlined = 262, statements flattened = 9806 [2022-11-02 20:42:10,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:42:10,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:42:10,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:42:10,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:42:10,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:10" (1/1) ... [2022-11-02 20:42:10,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:10" (1/1) ... [2022-11-02 20:42:10,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:10" (1/1) ... [2022-11-02 20:42:10,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:10" (1/1) ... [2022-11-02 20:42:10,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:10" (1/1) ... [2022-11-02 20:42:11,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:10" (1/1) ... [2022-11-02 20:42:11,140 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:10" (1/1) ... [2022-11-02 20:42:11,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:10" (1/1) ... [2022-11-02 20:42:11,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:42:11,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:42:11,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:42:11,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:42:11,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:10" (1/1) ... [2022-11-02 20:42:11,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:42:11,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2115e33-69bb-491c-8573-bf5ca2633cdb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:42:11,249 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2115e33-69bb-491c-8573-bf5ca2633cdb/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:42:11,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2115e33-69bb-491c-8573-bf5ca2633cdb/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:42:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure resize_cache_dev [2022-11-02 20:42:11,307 INFO L138 BoogieDeclarations]: Found implementation of procedure resize_cache_dev [2022-11-02 20:42:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure block_size_is_power_of_two [2022-11-02 20:42:11,308 INFO L138 BoogieDeclarations]: Found implementation of procedure block_size_is_power_of_two [2022-11-02 20:42:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-02 20:42:11,308 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-02 20:42:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_manager_destroy [2022-11-02 20:42:11,308 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_manager_destroy [2022-11-02 20:42:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2022-11-02 20:42:11,309 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2022-11-02 20:42:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_sm_root [2022-11-02 20:42:11,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_sm_root [2022-11-02 20:42:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure bio_writes_complete_block [2022-11-02 20:42:11,309 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_writes_complete_block [2022-11-02 20:42:11,310 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-02 20:42:11,310 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_pre_commit [2022-11-02 20:42:11,310 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_pre_commit [2022-11-02 20:42:11,310 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2022-11-02 20:42:11,310 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2022-11-02 20:42:11,311 INFO L130 BoogieDeclarations]: Found specification of procedure cache_map [2022-11-02 20:42:11,311 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_map [2022-11-02 20:42:11,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-02 20:42:11,311 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-02 20:42:11,311 INFO L130 BoogieDeclarations]: Found specification of procedure process_migrations [2022-11-02 20:42:11,312 INFO L138 BoogieDeclarations]: Found implementation of procedure process_migrations [2022-11-02 20:42:11,312 INFO L130 BoogieDeclarations]: Found specification of procedure remap_cell_to_origin_clear_discard [2022-11-02 20:42:11,312 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_cell_to_origin_clear_discard [2022-11-02 20:42:11,312 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_checksum [2022-11-02 20:42:11,312 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_checksum [2022-11-02 20:42:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-02 20:42:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-02 20:42:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure put_policy [2022-11-02 20:42:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure put_policy [2022-11-02 20:42:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_tick_bio_needed [2022-11-02 20:42:11,314 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_tick_bio_needed [2022-11-02 20:42:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 20:42:11,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 20:42:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure update_flags [2022-11-02 20:42:11,314 INFO L138 BoogieDeclarations]: Found implementation of procedure update_flags [2022-11-02 20:42:11,315 INFO L130 BoogieDeclarations]: Found specification of procedure calc_discard_block_range [2022-11-02 20:42:11,315 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_discard_block_range [2022-11-02 20:42:11,315 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2022-11-02 20:42:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2022-11-02 20:42:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_release_no_holder [2022-11-02 20:42:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure free_bitset [2022-11-02 20:42:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure free_bitset [2022-11-02 20:42:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure commit_if_needed [2022-11-02 20:42:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure commit_if_needed [2022-11-02 20:42:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-02 20:42:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-02 20:42:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-02 20:42:11,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-02 20:42:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure get_per_bio_data [2022-11-02 20:42:11,319 INFO L138 BoogieDeclarations]: Found implementation of procedure get_per_bio_data [2022-11-02 20:42:11,319 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin_then_cache [2022-11-02 20:42:11,319 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin_then_cache [2022-11-02 20:42:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-02 20:42:11,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-02 20:42:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_remove_mapping [2022-11-02 20:42:11,322 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_remove_mapping [2022-11-02 20:42:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure dblock_to_oblock [2022-11-02 20:42:11,322 INFO L138 BoogieDeclarations]: Found implementation of procedure dblock_to_oblock [2022-11-02 20:42:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-02 20:42:11,322 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-02 20:42:11,323 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin [2022-11-02 20:42:11,323 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin [2022-11-02 20:42:11,323 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bitset [2022-11-02 20:42:11,324 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bitset [2022-11-02 20:42:11,324 INFO L130 BoogieDeclarations]: Found specification of procedure bio_detain_range [2022-11-02 20:42:11,325 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_detain_range [2022-11-02 20:42:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure from_cblock [2022-11-02 20:42:11,326 INFO L138 BoogieDeclarations]: Found implementation of procedure from_cblock [2022-11-02 20:42:11,326 INFO L130 BoogieDeclarations]: Found specification of procedure writethrough_mode [2022-11-02 20:42:11,326 INFO L138 BoogieDeclarations]: Found implementation of procedure writethrough_mode [2022-11-02 20:42:11,326 INFO L130 BoogieDeclarations]: Found specification of procedure write_dirty_bitset [2022-11-02 20:42:11,327 INFO L138 BoogieDeclarations]: Found implementation of procedure write_dirty_bitset [2022-11-02 20:42:11,327 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-02 20:42:11,327 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-02 20:42:11,327 INFO L130 BoogieDeclarations]: Found specification of procedure writeback_mode [2022-11-02 20:42:11,327 INFO L138 BoogieDeclarations]: Found implementation of procedure writeback_mode [2022-11-02 20:42:11,327 INFO L130 BoogieDeclarations]: Found specification of procedure cache_postsuspend [2022-11-02 20:42:11,328 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_postsuspend [2022-11-02 20:42:11,328 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_get_migration [2022-11-02 20:42:11,328 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_get_migration [2022-11-02 20:42:11,328 INFO L130 BoogieDeclarations]: Found specification of procedure issue_copy_or_discard [2022-11-02 20:42:11,328 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_copy_or_discard [2022-11-02 20:42:11,329 INFO L130 BoogieDeclarations]: Found specification of procedure cache_dtr [2022-11-02 20:42:11,329 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_dtr [2022-11-02 20:42:11,329 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-02 20:42:11,330 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-02 20:42:11,330 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-02 20:42:11,330 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_prison_cell [2022-11-02 20:42:11,331 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_prison_cell [2022-11-02 20:42:11,331 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_version [2022-11-02 20:42:11,331 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_version [2022-11-02 20:42:11,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-02 20:42:11,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-02 20:42:11,332 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-02 20:42:11,333 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-02 20:42:11,333 INFO L130 BoogieDeclarations]: Found specification of procedure __create_persistent_data_objects [2022-11-02 20:42:11,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_persistent_data_objects [2022-11-02 20:42:11,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:42:11,335 INFO L130 BoogieDeclarations]: Found specification of procedure get_per_bio_data_size [2022-11-02 20:42:11,335 INFO L138 BoogieDeclarations]: Found implementation of procedure get_per_bio_data_size [2022-11-02 20:42:11,335 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_resize [2022-11-02 20:42:11,336 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_resize [2022-11-02 20:42:11,336 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-02 20:42:11,336 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-02 20:42:11,336 INFO L130 BoogieDeclarations]: Found specification of procedure accounted_request [2022-11-02 20:42:11,336 INFO L138 BoogieDeclarations]: Found implementation of procedure accounted_request [2022-11-02 20:42:11,336 INFO L130 BoogieDeclarations]: Found specification of procedure pack_value [2022-11-02 20:42:11,337 INFO L138 BoogieDeclarations]: Found implementation of procedure pack_value [2022-11-02 20:42:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-02 20:42:11,338 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-02 20:42:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_empty [2022-11-02 20:42:11,338 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_empty [2022-11-02 20:42:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-02 20:42:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure clear_discard [2022-11-02 20:42:11,340 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_discard [2022-11-02 20:42:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_get_cell [2022-11-02 20:42:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_get_cell [2022-11-02 20:42:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-02 20:42:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-02 20:42:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure process_deferred_flush_bios [2022-11-02 20:42:11,346 INFO L138 BoogieDeclarations]: Found implementation of procedure process_deferred_flush_bios [2022-11-02 20:42:11,348 INFO L130 BoogieDeclarations]: Found specification of procedure cell_defer [2022-11-02 20:42:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure cell_defer [2022-11-02 20:42:11,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 20:42:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_commit [2022-11-02 20:42:11,353 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_commit [2022-11-02 20:42:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure sb_check [2022-11-02 20:42:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_check [2022-11-02 20:42:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_destroy [2022-11-02 20:42:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_destroy [2022-11-02 20:42:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure cache_device_name [2022-11-02 20:42:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_device_name [2022-11-02 20:42:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:42:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure get_policy_once [2022-11-02 20:42:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure get_policy_once [2022-11-02 20:42:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure issue [2022-11-02 20:42:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure issue [2022-11-02 20:42:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-02 20:42:11,356 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-02 20:42:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure inc_and_issue [2022-11-02 20:42:11,356 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_and_issue [2022-11-02 20:42:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure write_discard_bitset [2022-11-02 20:42:11,356 INFO L138 BoogieDeclarations]: Found implementation of procedure write_discard_bitset [2022-11-02 20:42:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure sync_metadata [2022-11-02 20:42:11,357 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_metadata [2022-11-02 20:42:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-02 20:42:11,357 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-02 20:42:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure set_discard_range [2022-11-02 20:42:11,358 INFO L138 BoogieDeclarations]: Found implementation of procedure set_discard_range [2022-11-02 20:42:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure policy_unchanged [2022-11-02 20:42:11,358 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_unchanged [2022-11-02 20:42:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-02 20:42:11,358 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-02 20:42:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure set_config_value [2022-11-02 20:42:11,359 INFO L138 BoogieDeclarations]: Found implementation of procedure set_config_value [2022-11-02 20:42:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure stop_worker [2022-11-02 20:42:11,359 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_worker [2022-11-02 20:42:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_19 [2022-11-02 20:42:11,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_19 [2022-11-02 20:42:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-02 20:42:11,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-02 20:42:11,360 INFO L130 BoogieDeclarations]: Found specification of procedure policy_force_mapping [2022-11-02 20:42:11,360 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_force_mapping [2022-11-02 20:42:11,360 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin_clear_discard [2022-11-02 20:42:11,360 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin_clear_discard [2022-11-02 20:42:11,360 INFO L130 BoogieDeclarations]: Found specification of procedure __save_sm_root [2022-11-02 20:42:11,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __save_sm_root [2022-11-02 20:42:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:42:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2022-11-02 20:42:11,361 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2022-11-02 20:42:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure blocks_are_unmapped_or_clean [2022-11-02 20:42:11,361 INFO L138 BoogieDeclarations]: Found implementation of procedure blocks_are_unmapped_or_clean [2022-11-02 20:42:11,362 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-02 20:42:11,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-02 20:42:11,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:42:11,362 INFO L130 BoogieDeclarations]: Found specification of procedure do_worker [2022-11-02 20:42:11,362 INFO L138 BoogieDeclarations]: Found implementation of procedure do_worker [2022-11-02 20:42:11,362 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2022-11-02 20:42:11,363 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2022-11-02 20:42:11,363 INFO L130 BoogieDeclarations]: Found specification of procedure build_key [2022-11-02 20:42:11,363 INFO L138 BoogieDeclarations]: Found implementation of procedure build_key [2022-11-02 20:42:11,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:42:11,363 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:42:11,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:42:11,364 INFO L130 BoogieDeclarations]: Found specification of procedure write_hints [2022-11-02 20:42:11,364 INFO L138 BoogieDeclarations]: Found implementation of procedure write_hints [2022-11-02 20:42:11,364 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2022-11-02 20:42:11,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2022-11-02 20:42:11,366 INFO L130 BoogieDeclarations]: Found specification of procedure __find_policy [2022-11-02 20:42:11,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_policy [2022-11-02 20:42:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure policy_tick [2022-11-02 20:42:11,367 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_tick [2022-11-02 20:42:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure cache_resume [2022-11-02 20:42:11,367 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_resume [2022-11-02 20:42:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2022-11-02 20:42:11,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2022-11-02 20:42:11,368 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_metadata_close [2022-11-02 20:42:11,368 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_metadata_close [2022-11-02 20:42:11,368 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_hint_size [2022-11-02 20:42:11,368 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_hint_size [2022-11-02 20:42:11,368 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-02 20:42:11,369 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-02 20:42:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_pop [2022-11-02 20:42:11,369 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_pop [2022-11-02 20:42:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure free_migration [2022-11-02 20:42:11,369 INFO L138 BoogieDeclarations]: Found implementation of procedure free_migration [2022-11-02 20:42:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-02 20:42:11,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-02 20:42:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure passthrough_mode [2022-11-02 20:42:11,370 INFO L138 BoogieDeclarations]: Found implementation of procedure passthrough_mode [2022-11-02 20:42:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure get_cache_mode [2022-11-02 20:42:11,370 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cache_mode [2022-11-02 20:42:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure to_cblock [2022-11-02 20:42:11,371 INFO L138 BoogieDeclarations]: Found implementation of procedure to_cblock [2022-11-02 20:42:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure cache_iterate_devices [2022-11-02 20:42:11,371 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_iterate_devices [2022-11-02 20:42:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure to_oblock [2022-11-02 20:42:11,371 INFO L138 BoogieDeclarations]: Found implementation of procedure to_oblock [2022-11-02 20:42:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-11-02 20:42:11,372 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-11-02 20:42:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure block_div [2022-11-02 20:42:11,372 INFO L138 BoogieDeclarations]: Found implementation of procedure block_div [2022-11-02 20:42:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-02 20:42:11,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-02 20:42:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-02 20:42:11,373 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-02 20:42:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure oblocks_per_dblock [2022-11-02 20:42:11,373 INFO L138 BoogieDeclarations]: Found implementation of procedure oblocks_per_dblock [2022-11-02 20:42:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure policy_set_dirty [2022-11-02 20:42:11,373 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_set_dirty [2022-11-02 20:42:11,374 INFO L130 BoogieDeclarations]: Found specification of procedure set_cache_size [2022-11-02 20:42:11,374 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cache_size [2022-11-02 20:42:11,374 INFO L130 BoogieDeclarations]: Found specification of procedure cache_message [2022-11-02 20:42:11,374 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_message [2022-11-02 20:42:11,374 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-02 20:42:11,374 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-02 20:42:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure inc_ds [2022-11-02 20:42:11,375 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_ds [2022-11-02 20:42:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:42:11,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:42:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure inc_hit_counter [2022-11-02 20:42:11,377 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_hit_counter [2022-11-02 20:42:11,381 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-02 20:42:11,382 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-02 20:42:11,382 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_visit_release [2022-11-02 20:42:11,382 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cell_visit_release [2022-11-02 20:42:11,382 INFO L130 BoogieDeclarations]: Found specification of procedure commit [2022-11-02 20:42:11,382 INFO L138 BoogieDeclarations]: Found implementation of procedure commit [2022-11-02 20:42:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2022-11-02 20:42:11,383 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2022-11-02 20:42:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure cache_io_hints [2022-11-02 20:42:11,384 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_io_hints [2022-11-02 20:42:11,387 INFO L130 BoogieDeclarations]: Found specification of procedure cache_end_io [2022-11-02 20:42:11,387 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_end_io [2022-11-02 20:42:11,387 INFO L130 BoogieDeclarations]: Found specification of procedure accounted_begin [2022-11-02 20:42:11,387 INFO L138 BoogieDeclarations]: Found implementation of procedure accounted_begin [2022-11-02 20:42:11,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-02 20:42:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 20:42:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-02 20:42:11,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-02 20:42:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_metadata_abort [2022-11-02 20:42:11,388 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_metadata_abort [2022-11-02 20:42:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure read_superblock_fields [2022-11-02 20:42:11,389 INFO L138 BoogieDeclarations]: Found implementation of procedure read_superblock_fields [2022-11-02 20:42:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_min [2022-11-02 20:42:11,389 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_min [2022-11-02 20:42:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure inc_miss_counter [2022-11-02 20:42:11,389 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_miss_counter [2022-11-02 20:42:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure migration_failure [2022-11-02 20:42:11,390 INFO L138 BoogieDeclarations]: Found implementation of procedure migration_failure [2022-11-02 20:42:11,390 INFO L130 BoogieDeclarations]: Found specification of procedure dm_hook_bio [2022-11-02 20:42:11,390 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_hook_bio [2022-11-02 20:42:11,390 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_set_value [2022-11-02 20:42:11,390 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_set_value [2022-11-02 20:42:11,390 INFO L130 BoogieDeclarations]: Found specification of procedure free_io_migration [2022-11-02 20:42:11,391 INFO L138 BoogieDeclarations]: Found implementation of procedure free_io_migration [2022-11-02 20:42:11,391 INFO L130 BoogieDeclarations]: Found specification of procedure do_waker [2022-11-02 20:42:11,391 INFO L138 BoogieDeclarations]: Found implementation of procedure do_waker [2022-11-02 20:42:11,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_18 [2022-11-02 20:42:11,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_18 [2022-11-02 20:42:11,391 INFO L130 BoogieDeclarations]: Found specification of procedure get_dev_size [2022-11-02 20:42:11,392 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dev_size [2022-11-02 20:42:11,392 INFO L130 BoogieDeclarations]: Found specification of procedure is_discarded_oblock [2022-11-02 20:42:11,392 INFO L138 BoogieDeclarations]: Found implementation of procedure is_discarded_oblock [2022-11-02 20:42:11,392 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bitset [2022-11-02 20:42:11,392 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bitset [2022-11-02 20:42:11,392 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-02 20:42:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-02 20:42:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure __setup_mapping_info [2022-11-02 20:42:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __setup_mapping_info [2022-11-02 20:42:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 20:42:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 20:42:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-02 20:42:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-02 20:42:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure bitset_size_in_bytes [2022-11-02 20:42:11,394 INFO L138 BoogieDeclarations]: Found implementation of procedure bitset_size_in_bytes [2022-11-02 20:42:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-02 20:42:11,394 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-02 20:42:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 20:42:11,394 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 20:42:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_is_read_only [2022-11-02 20:42:11,395 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_is_read_only [2022-11-02 20:42:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 20:42:11,395 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 20:42:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_location [2022-11-02 20:42:11,395 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_location [2022-11-02 20:42:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg_group [2022-11-02 20:42:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg_group [2022-11-02 20:42:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dirty [2022-11-02 20:42:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dirty [2022-11-02 20:42:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-02 20:42:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-02 20:42:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure dm_kcopyd_copy [2022-11-02 20:42:11,397 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_kcopyd_copy [2022-11-02 20:42:11,397 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-02 20:42:11,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-02 20:42:11,397 INFO L130 BoogieDeclarations]: Found specification of procedure quiesce_migration [2022-11-02 20:42:11,397 INFO L138 BoogieDeclarations]: Found implementation of procedure quiesce_migration [2022-11-02 20:42:11,397 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_event [2022-11-02 20:42:11,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_event [2022-11-02 20:42:11,398 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_opt [2022-11-02 20:42:11,398 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_opt [2022-11-02 20:42:11,398 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2022-11-02 20:42:11,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2022-11-02 20:42:11,398 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-02 20:42:11,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-02 20:42:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:42:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-02 20:42:11,399 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-02 20:42:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2022-11-02 20:42:11,399 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2022-11-02 20:42:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure free_prison_cell [2022-11-02 20:42:11,400 INFO L138 BoogieDeclarations]: Found implementation of procedure free_prison_cell [2022-11-02 20:42:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:42:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure __format_metadata [2022-11-02 20:42:11,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __format_metadata [2022-11-02 20:42:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-11-02 20:42:11,400 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-11-02 20:42:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure discard_or_flush [2022-11-02 20:42:11,401 INFO L138 BoogieDeclarations]: Found implementation of procedure discard_or_flush [2022-11-02 20:42:11,401 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_data_structs [2022-11-02 20:42:11,401 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_data_structs [2022-11-02 20:42:11,401 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-11-02 20:42:11,401 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-11-02 20:42:11,401 INFO L130 BoogieDeclarations]: Found specification of procedure unpack_value [2022-11-02 20:42:11,402 INFO L138 BoogieDeclarations]: Found implementation of procedure unpack_value [2022-11-02 20:42:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure dm_sm_destroy [2022-11-02 20:42:11,402 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_sm_destroy [2022-11-02 20:42:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure superblock_read_lock [2022-11-02 20:42:11,402 INFO L138 BoogieDeclarations]: Found implementation of procedure superblock_read_lock [2022-11-02 20:42:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:42:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_data [2022-11-02 20:42:11,403 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_data [2022-11-02 20:42:11,403 INFO L130 BoogieDeclarations]: Found specification of procedure from_dblock [2022-11-02 20:42:11,403 INFO L138 BoogieDeclarations]: Found implementation of procedure from_dblock [2022-11-02 20:42:11,403 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-02 20:42:11,403 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-02 20:42:11,403 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-02 20:42:11,404 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-02 20:42:11,404 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-02 20:42:11,404 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-02 20:42:11,404 INFO L130 BoogieDeclarations]: Found specification of procedure cache_bvec_merge [2022-11-02 20:42:11,404 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_bvec_merge [2022-11-02 20:42:11,404 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-02 20:42:11,405 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-02 20:42:11,405 INFO L130 BoogieDeclarations]: Found specification of procedure is_dirty [2022-11-02 20:42:11,405 INFO L138 BoogieDeclarations]: Found implementation of procedure is_dirty [2022-11-02 20:42:11,405 INFO L130 BoogieDeclarations]: Found specification of procedure __open_or_format_metadata [2022-11-02 20:42:11,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __open_or_format_metadata [2022-11-02 20:42:11,405 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_init [2022-11-02 20:42:11,405 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_init [2022-11-02 20:42:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-02 20:42:11,406 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-02 20:42:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_get_value [2022-11-02 20:42:11,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_get_value [2022-11-02 20:42:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_empty [2022-11-02 20:42:11,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_empty [2022-11-02 20:42:11,407 INFO L130 BoogieDeclarations]: Found specification of procedure set_dirty [2022-11-02 20:42:11,407 INFO L138 BoogieDeclarations]: Found implementation of procedure set_dirty [2022-11-02 20:42:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2022-11-02 20:42:11,408 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2022-11-02 20:42:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_walk [2022-11-02 20:42:11,408 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_walk [2022-11-02 20:42:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-02 20:42:11,409 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-02 20:42:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_cache [2022-11-02 20:42:11,409 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_cache [2022-11-02 20:42:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure oblock_to_dblock [2022-11-02 20:42:11,409 INFO L138 BoogieDeclarations]: Found implementation of procedure oblock_to_dblock [2022-11-02 20:42:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure wake_worker [2022-11-02 20:42:11,410 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_worker [2022-11-02 20:42:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_free_structs [2022-11-02 20:42:11,410 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_free_structs [2022-11-02 20:42:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure dm_disk_bitset_init [2022-11-02 20:42:11,410 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_disk_bitset_init [2022-11-02 20:42:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure set_discard [2022-11-02 20:42:11,411 INFO L138 BoogieDeclarations]: Found implementation of procedure set_discard [2022-11-02 20:42:11,411 INFO L130 BoogieDeclarations]: Found specification of procedure get_bio_block [2022-11-02 20:42:11,411 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bio_block [2022-11-02 20:42:11,411 INFO L130 BoogieDeclarations]: Found specification of procedure destroy [2022-11-02 20:42:11,411 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy [2022-11-02 20:42:11,411 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_read_lock [2022-11-02 20:42:11,411 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_read_lock [2022-11-02 20:42:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-02 20:42:11,412 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-02 20:42:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_release [2022-11-02 20:42:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure is_quiescing [2022-11-02 20:42:11,412 INFO L138 BoogieDeclarations]: Found implementation of procedure is_quiescing [2022-11-02 20:42:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-02 20:42:11,413 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-02 20:42:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure abort_transaction [2022-11-02 20:42:11,413 INFO L138 BoogieDeclarations]: Found implementation of procedure abort_transaction [2022-11-02 20:42:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:42:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure set_cache_mode [2022-11-02 20:42:11,413 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cache_mode [2022-11-02 20:42:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_info_init [2022-11-02 20:42:11,414 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_info_init [2022-11-02 20:42:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 20:42:11,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 20:42:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure from_oblock [2022-11-02 20:42:11,414 INFO L138 BoogieDeclarations]: Found implementation of procedure from_oblock [2022-11-02 20:42:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-02 20:42:11,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-02 20:42:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure superblock_lock [2022-11-02 20:42:11,415 INFO L138 BoogieDeclarations]: Found implementation of procedure superblock_lock [2022-11-02 20:42:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_copy [2022-11-02 20:42:11,415 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_copy [2022-11-02 20:42:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-02 20:42:11,416 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-02 20:42:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_name [2022-11-02 20:42:11,416 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_name [2022-11-02 20:42:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure spare_migration_bandwidth [2022-11-02 20:42:11,416 INFO L138 BoogieDeclarations]: Found implementation of procedure spare_migration_bandwidth [2022-11-02 20:42:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_add [2022-11-02 20:42:11,416 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_add [2022-11-02 20:42:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure remap_cell_to_cache_dirty [2022-11-02 20:42:11,417 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_cell_to_cache_dirty [2022-11-02 20:42:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_put_cell [2022-11-02 20:42:11,417 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_put_cell [2022-11-02 20:42:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2022-11-02 20:42:11,417 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2022-11-02 20:42:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure defer_bio [2022-11-02 20:42:11,418 INFO L138 BoogieDeclarations]: Found implementation of procedure defer_bio [2022-11-02 20:42:11,418 INFO L130 BoogieDeclarations]: Found specification of procedure metadata_operation_failed [2022-11-02 20:42:11,418 INFO L138 BoogieDeclarations]: Found implementation of procedure metadata_operation_failed [2022-11-02 20:42:11,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_table_lock [2022-11-02 20:42:11,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_table_lock [2022-11-02 20:42:11,418 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-02 20:42:11,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-02 20:42:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure dm_shift_arg [2022-11-02 20:42:11,419 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_shift_arg [2022-11-02 20:42:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure process_invalidation_requests [2022-11-02 20:42:11,419 INFO L138 BoogieDeclarations]: Found implementation of procedure process_invalidation_requests [2022-11-02 20:42:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_table_lock [2022-11-02 20:42:11,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_table_lock [2022-11-02 20:42:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-02 20:42:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-02 20:42:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_merge [2022-11-02 20:42:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_merge [2022-11-02 20:42:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure policy_remove_mapping [2022-11-02 20:42:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_remove_mapping [2022-11-02 20:42:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure to_dblock [2022-11-02 20:42:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure to_dblock [2022-11-02 20:42:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-11-02 20:42:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-11-02 20:42:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure bio_detain [2022-11-02 20:42:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_detain [2022-11-02 20:42:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-11-02 20:42:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-11-02 20:42:11,422 INFO L130 BoogieDeclarations]: Found specification of procedure at_least_one_arg [2022-11-02 20:42:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure at_least_one_arg [2022-11-02 20:42:11,422 INFO L130 BoogieDeclarations]: Found specification of procedure __queue_quiesced_migration [2022-11-02 20:42:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __queue_quiesced_migration [2022-11-02 20:42:11,422 INFO L130 BoogieDeclarations]: Found specification of procedure inc_io_migrations [2022-11-02 20:42:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_io_migrations [2022-11-02 20:42:11,423 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free_slab [2022-11-02 20:42:11,423 INFO L130 BoogieDeclarations]: Found specification of procedure policy_map [2022-11-02 20:42:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_map [2022-11-02 20:42:11,423 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bio_prison_free_cell [2022-11-02 20:42:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bio_prison_free_cell [2022-11-02 20:42:11,423 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_destroy [2022-11-02 20:42:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_destroy [2022-11-02 20:42:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure complete_migration [2022-11-02 20:42:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_migration [2022-11-02 20:42:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-02 20:42:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-02 20:42:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-02 20:42:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-02 20:42:11,429 INFO L130 BoogieDeclarations]: Found specification of procedure __destroy_persistent_data_objects [2022-11-02 20:42:11,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __destroy_persistent_data_objects [2022-11-02 20:42:11,429 INFO L130 BoogieDeclarations]: Found specification of procedure lookup [2022-11-02 20:42:11,430 INFO L138 BoogieDeclarations]: Found implementation of procedure lookup [2022-11-02 20:42:11,430 INFO L130 BoogieDeclarations]: Found specification of procedure process_invalidation_request [2022-11-02 20:42:11,430 INFO L138 BoogieDeclarations]: Found implementation of procedure process_invalidation_request [2022-11-02 20:42:11,430 INFO L130 BoogieDeclarations]: Found specification of procedure migration_success_pre_commit [2022-11-02 20:42:11,430 INFO L138 BoogieDeclarations]: Found implementation of procedure migration_success_pre_commit [2022-11-02 20:42:11,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:42:11,431 INFO L130 BoogieDeclarations]: Found specification of procedure cache_status [2022-11-02 20:42:11,431 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_status [2022-11-02 20:42:11,431 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_unlock [2022-11-02 20:42:11,431 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_unlock [2022-11-02 20:42:11,431 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2022-11-02 20:42:11,431 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2022-11-02 20:42:11,432 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-02 20:42:11,432 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dm_oblock_t~0~TO~VOID [2022-11-02 20:42:11,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dm_oblock_t~0~TO~VOID [2022-11-02 20:42:11,432 INFO L130 BoogieDeclarations]: Found specification of procedure process_cell [2022-11-02 20:42:11,432 INFO L138 BoogieDeclarations]: Found implementation of procedure process_cell [2022-11-02 20:42:13,134 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:42:13,139 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:42:14,058 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-02 20:42:25,576 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:42:25,613 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:42:25,614 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:42:25,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:42:25 BoogieIcfgContainer [2022-11-02 20:42:25,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:42:25,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:42:25,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:42:25,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:42:25,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:42:04" (1/3) ... [2022-11-02 20:42:25,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b612cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:42:25, skipping insertion in model container [2022-11-02 20:42:25,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:10" (2/3) ... [2022-11-02 20:42:25,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b612cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:42:25, skipping insertion in model container [2022-11-02 20:42:25,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:42:25" (3/3) ... [2022-11-02 20:42:25,630 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2022-11-02 20:42:25,650 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:42:25,651 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:42:25,819 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:42:25,827 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4ae5aad6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:42:25,827 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:42:25,846 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) [2022-11-02 20:42:25,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-02 20:42:25,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:25,891 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:42:25,892 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:42:25,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:25,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1010070639, now seen corresponding path program 1 times [2022-11-02 20:42:25,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:25,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447183843] [2022-11-02 20:42:25,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:25,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:26,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:42:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:26,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:26,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:26,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:42:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:26,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:26,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:26,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:26,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:42:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:26,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:26,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:26,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:42:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:42:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:42:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 20:42:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-02 20:42:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-02 20:42:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-02 20:42:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-02 20:42:27,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-02 20:42:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-02 20:42:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-02 20:42:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-02 20:42:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-02 20:42:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-02 20:42:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,685 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-11-02 20:42:27,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:27,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447183843] [2022-11-02 20:42:27,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447183843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:27,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:27,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:42:27,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030422048] [2022-11-02 20:42:27,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:27,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:42:27,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:27,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:42:27,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:42:27,747 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) [2022-11-02 20:42:35,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:42:44,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:42:46,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:42:46,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:46,868 INFO L93 Difference]: Finished difference Result 8452 states and 12355 transitions. [2022-11-02 20:42:46,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:42:46,872 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 [2022-11-02 20:42:46,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:47,032 INFO L225 Difference]: With dead ends: 8452 [2022-11-02 20:42:47,032 INFO L226 Difference]: Without dead ends: 4553 [2022-11-02 20:42:47,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:42:47,080 INFO L413 NwaCegarLoop]: 4926 mSDtfsCounter, 4293 mSDsluCounter, 2170 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 5061 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4404 SdHoareTripleChecker+Valid, 7096 SdHoareTripleChecker+Invalid, 7353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5061 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:47,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4404 Valid, 7096 Invalid, 7353 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5061 Valid, 2291 Invalid, 1 Unknown, 0 Unchecked, 18.2s Time] [2022-11-02 20:42:47,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4553 states. [2022-11-02 20:42:47,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4553 to 3862. [2022-11-02 20:42:47,464 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) [2022-11-02 20:42:47,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 5410 transitions. [2022-11-02 20:42:47,513 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 5410 transitions. Word has length 253 [2022-11-02 20:42:47,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:47,516 INFO L495 AbstractCegarLoop]: Abstraction has 3862 states and 5410 transitions. [2022-11-02 20:42:47,517 INFO L496 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) [2022-11-02 20:42:47,517 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 5410 transitions. [2022-11-02 20:42:47,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-02 20:42:47,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:47,534 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:42:47,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:42:47,535 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:42:47,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:47,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1808246337, now seen corresponding path program 1 times [2022-11-02 20:42:47,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:47,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976960044] [2022-11-02 20:42:47,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:47,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:42:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:42:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:42:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:42:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:48,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:42:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:42:48,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 20:42:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-02 20:42:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-02 20:42:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-02 20:42:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-02 20:42:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-02 20:42:48,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-02 20:42:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-02 20:42:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-02 20:42:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-02 20:42:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-02 20:42:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:48,752 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-11-02 20:42:48,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:48,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976960044] [2022-11-02 20:42:48,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976960044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:48,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:48,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:42:48,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146418784] [2022-11-02 20:42:48,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:48,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:42:48,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:48,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:42:48,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:42:48,756 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) [2022-11-02 20:42:58,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:43:05,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:43:07,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:07,105 INFO L93 Difference]: Finished difference Result 4555 states and 6593 transitions. [2022-11-02 20:43:07,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:43:07,106 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 [2022-11-02 20:43:07,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:07,136 INFO L225 Difference]: With dead ends: 4555 [2022-11-02 20:43:07,137 INFO L226 Difference]: Without dead ends: 4552 [2022-11-02 20:43:07,139 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:43:07,141 INFO L413 NwaCegarLoop]: 4836 mSDtfsCounter, 8972 mSDsluCounter, 2158 mSDsCounter, 0 mSdLazyCounter, 2359 mSolverCounterSat, 6154 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9607 SdHoareTripleChecker+Valid, 6994 SdHoareTripleChecker+Invalid, 8514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6154 IncrementalHoareTripleChecker+Valid, 2359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:07,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9607 Valid, 6994 Invalid, 8514 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6154 Valid, 2359 Invalid, 1 Unknown, 0 Unchecked, 17.7s Time] [2022-11-02 20:43:07,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4552 states. [2022-11-02 20:43:07,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4552 to 3861. [2022-11-02 20:43:07,335 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) [2022-11-02 20:43:07,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3861 states to 3861 states and 5408 transitions. [2022-11-02 20:43:07,356 INFO L78 Accepts]: Start accepts. Automaton has 3861 states and 5408 transitions. Word has length 253 [2022-11-02 20:43:07,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:07,359 INFO L495 AbstractCegarLoop]: Abstraction has 3861 states and 5408 transitions. [2022-11-02 20:43:07,360 INFO L496 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) [2022-11-02 20:43:07,360 INFO L276 IsEmpty]: Start isEmpty. Operand 3861 states and 5408 transitions. [2022-11-02 20:43:07,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-11-02 20:43:07,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:07,366 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:43:07,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:43:07,369 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:43:07,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:07,370 INFO L85 PathProgramCache]: Analyzing trace with hash -223027263, now seen corresponding path program 1 times [2022-11-02 20:43:07,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:07,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813699216] [2022-11-02 20:43:07,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:07,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:07,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:43:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:07,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:07,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:43:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:07,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:43:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:07,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:07,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:07,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:43:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:07,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:43:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:07,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:07,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:43:07,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:07,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:43:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:07,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:07,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:43:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:07,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:43:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:07,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:07,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:43:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:07,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:43:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:07,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:07,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:07,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:43:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 20:43:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:08,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:43:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-02 20:43:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:43:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-02 20:43:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:43:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-02 20:43:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-02 20:43:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-02 20:43:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-02 20:43:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-02 20:43:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-02 20:43:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-02 20:43:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-02 20:43:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:08,322 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-11-02 20:43:08,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:08,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813699216] [2022-11-02 20:43:08,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813699216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:08,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:08,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:43:08,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850112826] [2022-11-02 20:43:08,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:08,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:43:08,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:08,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:43:08,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:43:08,325 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) [2022-11-02 20:43:15,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:43:29,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:43:30,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:43:32,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:43:33,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:33,272 INFO L93 Difference]: Finished difference Result 4554 states and 6591 transitions. [2022-11-02 20:43:33,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:43:33,273 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 [2022-11-02 20:43:33,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:33,303 INFO L225 Difference]: With dead ends: 4554 [2022-11-02 20:43:33,304 INFO L226 Difference]: Without dead ends: 4551 [2022-11-02 20:43:33,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:43:33,307 INFO L413 NwaCegarLoop]: 4831 mSDtfsCounter, 7810 mSDsluCounter, 3707 mSDsCounter, 0 mSdLazyCounter, 3677 mSolverCounterSat, 4588 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8442 SdHoareTripleChecker+Valid, 8538 SdHoareTripleChecker+Invalid, 8267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4588 IncrementalHoareTripleChecker+Valid, 3677 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:33,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8442 Valid, 8538 Invalid, 8267 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4588 Valid, 3677 Invalid, 2 Unknown, 0 Unchecked, 24.4s Time] [2022-11-02 20:43:33,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4551 states. [2022-11-02 20:43:33,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4551 to 3860. [2022-11-02 20:43:33,541 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) [2022-11-02 20:43:33,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3860 states to 3860 states and 5406 transitions. [2022-11-02 20:43:33,563 INFO L78 Accepts]: Start accepts. Automaton has 3860 states and 5406 transitions. Word has length 254 [2022-11-02 20:43:33,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:33,564 INFO L495 AbstractCegarLoop]: Abstraction has 3860 states and 5406 transitions. [2022-11-02 20:43:33,565 INFO L496 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) [2022-11-02 20:43:33,565 INFO L276 IsEmpty]: Start isEmpty. Operand 3860 states and 5406 transitions. [2022-11-02 20:43:33,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-11-02 20:43:33,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:33,570 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:43:33,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:43:33,570 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:43:33,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:33,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1674128642, now seen corresponding path program 1 times [2022-11-02 20:43:33,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:33,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474239987] [2022-11-02 20:43:33,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:33,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:33,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:43:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:33,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:33,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:43:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:43:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:43:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:43:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:43:34,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:43:34,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:43:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:43:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:43:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:43:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:43:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 20:43:34,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:43:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-02 20:43:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:43:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-02 20:43:34,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:43:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-02 20:43:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:34,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-02 20:43:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-02 20:43:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-02 20:43:34,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:34,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-02 20:43:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-02 20:43:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-02 20:43:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-02 20:43:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:43:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:34,531 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-11-02 20:43:34,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:43:34,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474239987] [2022-11-02 20:43:34,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474239987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:34,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:34,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:43:34,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843328108] [2022-11-02 20:43:34,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:34,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:43:34,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:43:34,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:43:34,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:43:34,535 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) [2022-11-02 20:43:45,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:43:55,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:43:56,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:43:59,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:44:01,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:44:03,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:44:03,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:44:03,788 INFO L93 Difference]: Finished difference Result 4553 states and 6589 transitions. [2022-11-02 20:44:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:44:03,789 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 [2022-11-02 20:44:03,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:44:03,820 INFO L225 Difference]: With dead ends: 4553 [2022-11-02 20:44:03,820 INFO L226 Difference]: Without dead ends: 4550 [2022-11-02 20:44:03,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:44:03,824 INFO L413 NwaCegarLoop]: 4830 mSDtfsCounter, 7418 mSDsluCounter, 3932 mSDsCounter, 0 mSdLazyCounter, 3655 mSolverCounterSat, 4369 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8056 SdHoareTripleChecker+Valid, 8762 SdHoareTripleChecker+Invalid, 8027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4369 IncrementalHoareTripleChecker+Valid, 3655 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:44:03,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8056 Valid, 8762 Invalid, 8027 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4369 Valid, 3655 Invalid, 3 Unknown, 0 Unchecked, 28.6s Time] [2022-11-02 20:44:03,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4550 states. [2022-11-02 20:44:04,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4550 to 3859. [2022-11-02 20:44:04,117 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) [2022-11-02 20:44:04,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3859 states to 3859 states and 5404 transitions. [2022-11-02 20:44:04,139 INFO L78 Accepts]: Start accepts. Automaton has 3859 states and 5404 transitions. Word has length 255 [2022-11-02 20:44:04,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:44:04,140 INFO L495 AbstractCegarLoop]: Abstraction has 3859 states and 5404 transitions. [2022-11-02 20:44:04,140 INFO L496 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) [2022-11-02 20:44:04,141 INFO L276 IsEmpty]: Start isEmpty. Operand 3859 states and 5404 transitions. [2022-11-02 20:44:04,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-11-02 20:44:04,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:44:04,146 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:44:04,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:44:04,147 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:44:04,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:04,148 INFO L85 PathProgramCache]: Analyzing trace with hash 356424420, now seen corresponding path program 1 times [2022-11-02 20:44:04,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:04,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877161324] [2022-11-02 20:44:04,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:04,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:44:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:44:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:44:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:04,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:44:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:44:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:44:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:44:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:44:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:44:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:44:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:44:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:44:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 20:44:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:44:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-02 20:44:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:44:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-02 20:44:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:44:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-02 20:44:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-02 20:44:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-02 20:44:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-02 20:44:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-02 20:44:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-02 20:44:04,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:04,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:05,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-02 20:44:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:05,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:05,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-02 20:44:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:05,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:05,053 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-11-02 20:44:05,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:05,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877161324] [2022-11-02 20:44:05,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877161324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:05,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:05,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:44:05,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665012658] [2022-11-02 20:44:05,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:05,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:44:05,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:05,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:44:05,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:44:05,060 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) [2022-11-02 20:44:09,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:44:11,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:44:19,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:44:20,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:44:22,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:44:35,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:44:36,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:44:38,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:44:41,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:44:42,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:44:46,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:44:47,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:44:47,915 INFO L93 Difference]: Finished difference Result 4563 states and 6596 transitions. [2022-11-02 20:44:47,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:44:47,916 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 [2022-11-02 20:44:47,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:44:47,946 INFO L225 Difference]: With dead ends: 4563 [2022-11-02 20:44:47,946 INFO L226 Difference]: Without dead ends: 4550 [2022-11-02 20:44:47,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:44:47,953 INFO L413 NwaCegarLoop]: 4840 mSDtfsCounter, 7422 mSDsluCounter, 5505 mSDsCounter, 0 mSdLazyCounter, 5000 mSolverCounterSat, 4411 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8016 SdHoareTripleChecker+Valid, 10345 SdHoareTripleChecker+Invalid, 9413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4411 IncrementalHoareTripleChecker+Valid, 5000 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:44:47,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8016 Valid, 10345 Invalid, 9413 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4411 Valid, 5000 Invalid, 2 Unknown, 0 Unchecked, 42.1s Time] [2022-11-02 20:44:47,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4550 states. [2022-11-02 20:44:48,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4550 to 3859. [2022-11-02 20:44:48,271 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) [2022-11-02 20:44:48,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3859 states to 3859 states and 5398 transitions. [2022-11-02 20:44:48,293 INFO L78 Accepts]: Start accepts. Automaton has 3859 states and 5398 transitions. Word has length 256 [2022-11-02 20:44:48,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:44:48,294 INFO L495 AbstractCegarLoop]: Abstraction has 3859 states and 5398 transitions. [2022-11-02 20:44:48,295 INFO L496 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) [2022-11-02 20:44:48,295 INFO L276 IsEmpty]: Start isEmpty. Operand 3859 states and 5398 transitions. [2022-11-02 20:44:48,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-11-02 20:44:48,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:44:48,307 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:44:48,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:44:48,307 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:44:48,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:44:48,308 INFO L85 PathProgramCache]: Analyzing trace with hash -126581329, now seen corresponding path program 1 times [2022-11-02 20:44:48,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:44:48,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875437980] [2022-11-02 20:44:48,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:44:48,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:44:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:44:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:48,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:44:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:44:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:48,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:44:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:44:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:44:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:44:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:44:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:44:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:44:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:44:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:44:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 20:44:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:44:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-02 20:44:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:48,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:44:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-02 20:44:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:44:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-02 20:44:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:48,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:49,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-02 20:44:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:49,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:49,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-02 20:44:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:49,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:49,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-02 20:44:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:49,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:49,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-02 20:44:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:49,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:49,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-02 20:44:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:49,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:49,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-02 20:44:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:49,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:49,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-02 20:44:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:49,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:44:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:49,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-11-02 20:44:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:49,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-11-02 20:44:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:49,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-11-02 20:44:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:49,200 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-11-02 20:44:49,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:49,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875437980] [2022-11-02 20:44:49,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875437980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:49,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:49,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:44:49,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91030862] [2022-11-02 20:44:49,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:49,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:44:49,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:49,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:44:49,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:44:49,203 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) [2022-11-02 20:44:54,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:45:30,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:45:33,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:45:35,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:45:41,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []