./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-thin-pool.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_48c573d7-94ab-4ae8-940f-8156061335c0/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c573d7-94ab-4ae8-940f-8156061335c0/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c573d7-94ab-4ae8-940f-8156061335c0/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c573d7-94ab-4ae8-940f-8156061335c0/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-thin-pool.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c573d7-94ab-4ae8-940f-8156061335c0/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c573d7-94ab-4ae8-940f-8156061335c0/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 205c5df1a1a60f895a95c3ed9a3099f16685cc5b57379f95f0c6fb3c071e97b9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:40:45,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:40:45,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:40:45,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:40:45,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:40:45,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:40:45,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:40:45,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:40:45,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:40:45,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:40:45,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:40:45,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:40:45,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:40:45,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:40:45,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:40:45,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:40:45,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:40:45,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:40:45,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:40:45,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:40:45,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:40:45,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:40:45,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:40:45,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:40:45,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:40:45,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:40:45,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:40:45,620 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:40:45,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:40:45,621 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:40:45,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:40:45,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:40:45,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:40:45,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:40:45,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:40:45,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:40:45,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:40:45,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:40:45,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:40:45,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:40:45,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:40:45,646 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c573d7-94ab-4ae8-940f-8156061335c0/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:40:45,676 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:40:45,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:40:45,677 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:40:45,677 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:40:45,678 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:40:45,678 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:40:45,678 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:40:45,678 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:40:45,678 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:40:45,679 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:40:45,680 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:40:45,680 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:40:45,680 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:40:45,681 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:40:45,681 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:40:45,681 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:40:45,681 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:40:45,682 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:40:45,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:40:45,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:40:45,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:40:45,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:40:45,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:40:45,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:40:45,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:40:45,685 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:40:45,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:40:45,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:40:45,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:40:45,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:40:45,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:40:45,687 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:40:45,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:40:45,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:40:45,688 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:40:45,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:40:45,688 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:40:45,688 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:40:45,690 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_48c573d7-94ab-4ae8-940f-8156061335c0/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c573d7-94ab-4ae8-940f-8156061335c0/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 205c5df1a1a60f895a95c3ed9a3099f16685cc5b57379f95f0c6fb3c071e97b9 [2022-11-03 02:40:45,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:40:46,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:40:46,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:40:46,016 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:40:46,017 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:40:46,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c573d7-94ab-4ae8-940f-8156061335c0/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-thin-pool.ko-entry_point.cil.out.i [2022-11-03 02:40:46,087 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c573d7-94ab-4ae8-940f-8156061335c0/bin/utaipan-7li7fVZpFI/data/c58b7d50a/1080c8f59aef4e48b82a32fa3bdb46d7/FLAG20868f049 [2022-11-03 02:40:47,157 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:40:47,158 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c573d7-94ab-4ae8-940f-8156061335c0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-thin-pool.ko-entry_point.cil.out.i [2022-11-03 02:40:47,202 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c573d7-94ab-4ae8-940f-8156061335c0/bin/utaipan-7li7fVZpFI/data/c58b7d50a/1080c8f59aef4e48b82a32fa3bdb46d7/FLAG20868f049 [2022-11-03 02:40:47,493 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c573d7-94ab-4ae8-940f-8156061335c0/bin/utaipan-7li7fVZpFI/data/c58b7d50a/1080c8f59aef4e48b82a32fa3bdb46d7 [2022-11-03 02:40:47,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:40:47,500 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:40:47,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:40:47,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:40:47,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:40:47,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:40:47" (1/1) ... [2022-11-03 02:40:47,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b93c76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:47, skipping insertion in model container [2022-11-03 02:40:47,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:40:47" (1/1) ... [2022-11-03 02:40:47,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:40:47,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:40:51,630 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_48c573d7-94ab-4ae8-940f-8156061335c0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-thin-pool.ko-entry_point.cil.out.i[392782,392795] [2022-11-03 02:40:51,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:40:51,923 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:40:52,553 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_48c573d7-94ab-4ae8-940f-8156061335c0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-thin-pool.ko-entry_point.cil.out.i[392782,392795] [2022-11-03 02:40:52,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:40:52,845 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:40:52,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:52 WrapperNode [2022-11-03 02:40:52,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:40:52,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:40:52,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:40:52,847 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:40:52,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:52" (1/1) ... [2022-11-03 02:40:52,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:52" (1/1) ... [2022-11-03 02:40:53,309 INFO L138 Inliner]: procedures = 655, calls = 4626, calls flagged for inlining = 250, calls inlined = 246, statements flattened = 10810 [2022-11-03 02:40:53,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:40:53,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:40:53,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:40:53,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:40:53,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:52" (1/1) ... [2022-11-03 02:40:53,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:52" (1/1) ... [2022-11-03 02:40:53,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:52" (1/1) ... [2022-11-03 02:40:53,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:52" (1/1) ... [2022-11-03 02:40:53,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:52" (1/1) ... [2022-11-03 02:40:53,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:52" (1/1) ... [2022-11-03 02:40:53,710 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:52" (1/1) ... [2022-11-03 02:40:53,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:52" (1/1) ... [2022-11-03 02:40:53,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:40:53,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:40:53,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:40:53,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:40:53,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:52" (1/1) ... [2022-11-03 02:40:53,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:40:53,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c573d7-94ab-4ae8-940f-8156061335c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:40:53,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c573d7-94ab-4ae8-940f-8156061335c0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:40:53,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c573d7-94ab-4ae8-940f-8156061335c0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:40:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure block_size_is_power_of_two [2022-11-03 02:40:53,860 INFO L138 BoogieDeclarations]: Found implementation of procedure block_size_is_power_of_two [2022-11-03 02:40:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 02:40:53,861 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 02:40:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure dm_deferred_entry_dec [2022-11-03 02:40:53,861 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_deferred_entry_dec [2022-11-03 02:40:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_manager_destroy [2022-11-03 02:40:53,861 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_manager_destroy [2022-11-03 02:40:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2022-11-03 02:40:53,862 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2022-11-03 02:40:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure dm_sm_root_size [2022-11-03 02:40:53,862 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_sm_root_size [2022-11-03 02:40:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure noflush_work [2022-11-03 02:40:53,862 INFO L138 BoogieDeclarations]: Found implementation of procedure noflush_work [2022-11-03 02:40:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure throttle_lock [2022-11-03 02:40:53,863 INFO L138 BoogieDeclarations]: Found implementation of procedure throttle_lock [2022-11-03 02:40:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_pre_commit [2022-11-03 02:40:53,863 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_pre_commit [2022-11-03 02:40:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2022-11-03 02:40:53,863 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2022-11-03 02:40:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:40:53,864 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:40:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure thin_preresume [2022-11-03 02:40:53,864 INFO L138 BoogieDeclarations]: Found implementation of procedure thin_preresume [2022-11-03 02:40:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_checksum [2022-11-03 02:40:53,864 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_checksum [2022-11-03 02:40:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-03 02:40:53,864 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-03 02:40:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure throttle_work_update [2022-11-03 02:40:53,865 INFO L138 BoogieDeclarations]: Found implementation of procedure throttle_work_update [2022-11-03 02:40:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure dm_btree_remove [2022-11-03 02:40:53,865 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_btree_remove [2022-11-03 02:40:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure get_metadata_dev_size_in_blocks [2022-11-03 02:40:53,865 INFO L138 BoogieDeclarations]: Found implementation of procedure get_metadata_dev_size_in_blocks [2022-11-03 02:40:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure pool_features_init [2022-11-03 02:40:53,866 INFO L138 BoogieDeclarations]: Found implementation of procedure pool_features_init [2022-11-03 02:40:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:40:53,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:40:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2022-11-03 02:40:53,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2022-11-03 02:40:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_external_copy [2022-11-03 02:40:53,867 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_external_copy [2022-11-03 02:40:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2022-11-03 02:40:53,867 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2022-11-03 02:40:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure __close_device [2022-11-03 02:40:53,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __close_device [2022-11-03 02:40:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure remap [2022-11-03 02:40:53,868 INFO L138 BoogieDeclarations]: Found implementation of procedure remap [2022-11-03 02:40:53,868 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-03 02:40:53,868 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-03 02:40:53,868 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-11-03 02:40:53,868 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-11-03 02:40:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure thin_get [2022-11-03 02:40:53,869 INFO L138 BoogieDeclarations]: Found implementation of procedure thin_get [2022-11-03 02:40:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure blk_finish_plug [2022-11-03 02:40:53,869 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_finish_plug [2022-11-03 02:40:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure bdevname [2022-11-03 02:40:53,869 INFO L138 BoogieDeclarations]: Found implementation of procedure bdevname [2022-11-03 02:40:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure process_discard_bio [2022-11-03 02:40:53,870 INFO L138 BoogieDeclarations]: Found implementation of procedure process_discard_bio [2022-11-03 02:40:53,870 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:40:53,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:40:53,870 INFO L130 BoogieDeclarations]: Found specification of procedure set_discard_callbacks [2022-11-03 02:40:53,870 INFO L138 BoogieDeclarations]: Found implementation of procedure set_discard_callbacks [2022-11-03 02:40:53,870 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_data_block [2022-11-03 02:40:53,871 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_data_block [2022-11-03 02:40:53,871 INFO L130 BoogieDeclarations]: Found specification of procedure __pool_destroy [2022-11-03 02:40:53,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __pool_destroy [2022-11-03 02:40:53,871 INFO L130 BoogieDeclarations]: Found specification of procedure dm_deferred_entry_inc [2022-11-03 02:40:53,871 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_deferred_entry_inc [2022-11-03 02:40:53,871 INFO L130 BoogieDeclarations]: Found specification of procedure dm_pool_get_metadata_dev_size [2022-11-03 02:40:53,871 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_pool_get_metadata_dev_size [2022-11-03 02:40:53,872 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_plug [2022-11-03 02:40:53,872 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_plug [2022-11-03 02:40:53,872 INFO L130 BoogieDeclarations]: Found specification of procedure cell_visit_release [2022-11-03 02:40:53,872 INFO L138 BoogieDeclarations]: Found implementation of procedure cell_visit_release [2022-11-03 02:40:53,872 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:40:53,872 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:40:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure __init_rwsem [2022-11-03 02:40:53,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_rwsem [2022-11-03 02:40:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure free_discard_mapping [2022-11-03 02:40:53,873 INFO L138 BoogieDeclarations]: Found implementation of procedure free_discard_mapping [2022-11-03 02:40:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure dm_sm_get_nr_free [2022-11-03 02:40:53,873 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_sm_get_nr_free [2022-11-03 02:40:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure dm_deferred_set_add_work [2022-11-03 02:40:53,874 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_deferred_set_add_work [2022-11-03 02:40:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure thin_put [2022-11-03 02:40:53,874 INFO L138 BoogieDeclarations]: Found implementation of procedure thin_put [2022-11-03 02:40:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure dm_pool_metadata_needs_check [2022-11-03 02:40:53,874 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_pool_metadata_needs_check [2022-11-03 02:40:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure dm_thin_find_block [2022-11-03 02:40:53,875 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_thin_find_block [2022-11-03 02:40:53,875 INFO L130 BoogieDeclarations]: Found specification of procedure copy_sm_roots [2022-11-03 02:40:53,875 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_sm_roots [2022-11-03 02:40:53,875 INFO L130 BoogieDeclarations]: Found specification of procedure generic_make_request [2022-11-03 02:40:53,875 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_make_request [2022-11-03 02:40:53,875 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_create_non_blocking_clone [2022-11-03 02:40:53,876 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_create_non_blocking_clone [2022-11-03 02:40:53,876 INFO L130 BoogieDeclarations]: Found specification of procedure thin_defer_bio [2022-11-03 02:40:53,876 INFO L138 BoogieDeclarations]: Found implementation of procedure thin_defer_bio [2022-11-03 02:40:53,876 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-03 02:40:53,876 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-03 02:40:53,876 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_unlock [2022-11-03 02:40:53,877 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_unlock [2022-11-03 02:40:53,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:40:53,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:40:53,877 INFO L130 BoogieDeclarations]: Found specification of procedure pool_resume_active_thins [2022-11-03 02:40:53,877 INFO L138 BoogieDeclarations]: Found implementation of procedure pool_resume_active_thins [2022-11-03 02:40:53,877 INFO L130 BoogieDeclarations]: Found specification of procedure dm_kcopyd_client_destroy [2022-11-03 02:40:53,878 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_kcopyd_client_destroy [2022-11-03 02:40:53,878 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:40:53,878 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:40:53,878 INFO L130 BoogieDeclarations]: Found specification of procedure __create_persistent_data_objects [2022-11-03 02:40:53,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_persistent_data_objects [2022-11-03 02:40:53,878 INFO L130 BoogieDeclarations]: Found specification of procedure thin_merge [2022-11-03 02:40:53,879 INFO L138 BoogieDeclarations]: Found implementation of procedure thin_merge [2022-11-03 02:40:53,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:40:53,879 INFO L130 BoogieDeclarations]: Found specification of procedure dm_btree_del [2022-11-03 02:40:53,879 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_btree_del [2022-11-03 02:40:53,879 INFO L130 BoogieDeclarations]: Found specification of procedure dm_pool_metadata_read_only [2022-11-03 02:40:53,879 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_pool_metadata_read_only [2022-11-03 02:40:53,880 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 02:40:53,880 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 02:40:53,880 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:40:53,880 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:40:53,880 INFO L130 BoogieDeclarations]: Found specification of procedure thin_io_hints [2022-11-03 02:40:53,880 INFO L138 BoogieDeclarations]: Found implementation of procedure thin_io_hints [2022-11-03 02:40:53,881 INFO L130 BoogieDeclarations]: Found specification of procedure pool_preresume [2022-11-03 02:40:53,881 INFO L138 BoogieDeclarations]: Found implementation of procedure pool_preresume [2022-11-03 02:40:53,881 INFO L130 BoogieDeclarations]: Found specification of procedure thin_status [2022-11-03 02:40:53,881 INFO L138 BoogieDeclarations]: Found implementation of procedure thin_status [2022-11-03 02:40:53,881 INFO L130 BoogieDeclarations]: Found specification of procedure warn_if_metadata_device_too_big [2022-11-03 02:40:53,881 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_if_metadata_device_too_big [2022-11-03 02:40:53,881 INFO L130 BoogieDeclarations]: Found specification of procedure ll_zero [2022-11-03 02:40:53,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_zero [2022-11-03 02:40:53,882 INFO L130 BoogieDeclarations]: Found specification of procedure dm_thin_remove_range [2022-11-03 02:40:53,882 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_thin_remove_range [2022-11-03 02:40:53,882 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_empty [2022-11-03 02:40:53,882 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_empty [2022-11-03 02:40:53,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:40:53,882 INFO L130 BoogieDeclarations]: Found specification of procedure complete_mapping_preparation [2022-11-03 02:40:53,883 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_mapping_preparation [2022-11-03 02:40:53,883 INFO L130 BoogieDeclarations]: Found specification of procedure inc_all_io_entry [2022-11-03 02:40:53,883 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_all_io_entry [2022-11-03 02:40:53,883 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 02:40:53,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 02:40:53,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:40:53,883 INFO L130 BoogieDeclarations]: Found specification of procedure retry_bios_on_resume [2022-11-03 02:40:53,884 INFO L138 BoogieDeclarations]: Found implementation of procedure retry_bios_on_resume [2022-11-03 02:40:53,884 INFO L130 BoogieDeclarations]: Found specification of procedure to_delayed_work [2022-11-03 02:40:53,884 INFO L138 BoogieDeclarations]: Found implementation of procedure to_delayed_work [2022-11-03 02:40:53,884 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_is_locked [2022-11-03 02:40:53,884 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_is_locked [2022-11-03 02:40:53,884 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_commit [2022-11-03 02:40:53,884 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_commit [2022-11-03 02:40:53,885 INFO L130 BoogieDeclarations]: Found specification of procedure should_error_unserviceable_bio [2022-11-03 02:40:53,885 INFO L138 BoogieDeclarations]: Found implementation of procedure should_error_unserviceable_bio [2022-11-03 02:40:53,885 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_mapping [2022-11-03 02:40:53,885 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_mapping [2022-11-03 02:40:53,885 INFO L130 BoogieDeclarations]: Found specification of procedure sb_check [2022-11-03 02:40:53,885 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_check [2022-11-03 02:40:53,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:40:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure thin_presuspend [2022-11-03 02:40:53,886 INFO L138 BoogieDeclarations]: Found implementation of procedure thin_presuspend [2022-11-03 02:40:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure cell_error_with_code [2022-11-03 02:40:53,886 INFO L138 BoogieDeclarations]: Found implementation of procedure cell_error_with_code [2022-11-03 02:40:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure issue [2022-11-03 02:40:53,886 INFO L138 BoogieDeclarations]: Found implementation of procedure issue [2022-11-03 02:40:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure thin_endio [2022-11-03 02:40:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure thin_endio [2022-11-03 02:40:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure __pool_table_lookup [2022-11-03 02:40:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __pool_table_lookup [2022-11-03 02:40:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:40:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:40:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure pool_io_hints [2022-11-03 02:40:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pool_io_hints [2022-11-03 02:40:53,888 INFO L130 BoogieDeclarations]: Found specification of procedure is_factor [2022-11-03 02:40:53,888 INFO L138 BoogieDeclarations]: Found implementation of procedure is_factor [2022-11-03 02:40:53,888 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-03 02:40:53,888 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-03 02:40:53,888 INFO L130 BoogieDeclarations]: Found specification of procedure process_prepared [2022-11-03 02:40:53,888 INFO L138 BoogieDeclarations]: Found implementation of procedure process_prepared [2022-11-03 02:40:53,888 INFO L130 BoogieDeclarations]: Found specification of procedure cell_requeue [2022-11-03 02:40:53,889 INFO L138 BoogieDeclarations]: Found implementation of procedure cell_requeue [2022-11-03 02:40:53,889 INFO L130 BoogieDeclarations]: Found specification of procedure dm_pool_get_data_dev_size [2022-11-03 02:40:53,889 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_pool_get_data_dev_size [2022-11-03 02:40:53,889 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 02:40:53,889 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 02:40:53,889 INFO L130 BoogieDeclarations]: Found specification of procedure dm_sm_copy_root [2022-11-03 02:40:53,889 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_sm_copy_root [2022-11-03 02:40:53,890 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-11-03 02:40:53,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-11-03 02:40:53,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_17 [2022-11-03 02:40:53,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_17 [2022-11-03 02:40:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-03 02:40:53,939 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-03 02:40:53,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 02:40:53,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 02:40:53,939 INFO L130 BoogieDeclarations]: Found specification of procedure break_sharing [2022-11-03 02:40:53,939 INFO L138 BoogieDeclarations]: Found implementation of procedure break_sharing [2022-11-03 02:40:53,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:40:53,939 INFO L130 BoogieDeclarations]: Found specification of procedure dm_pool_metadata_close [2022-11-03 02:40:53,939 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_pool_metadata_close [2022-11-03 02:40:53,940 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-11-03 02:40:53,940 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-11-03 02:40:53,940 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2022-11-03 02:40:53,940 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2022-11-03 02:40:53,940 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-03 02:40:53,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-03 02:40:53,940 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_thin [2022-11-03 02:40:53,940 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_thin [2022-11-03 02:40:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:40:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure do_worker [2022-11-03 02:40:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure do_worker [2022-11-03 02:40:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure dm_register_target [2022-11-03 02:40:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_register_target [2022-11-03 02:40:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure do_no_space_timeout [2022-11-03 02:40:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure do_no_space_timeout [2022-11-03 02:40:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bio_from_per_bio_data [2022-11-03 02:40:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bio_from_per_bio_data [2022-11-03 02:40:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2022-11-03 02:40:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2022-11-03 02:40:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure pool_iterate_devices [2022-11-03 02:40:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure pool_iterate_devices [2022-11-03 02:40:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-11-03 02:40:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-11-03 02:40:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure build_key [2022-11-03 02:40:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure build_key [2022-11-03 02:40:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:40:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:40:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure save_sm_roots [2022-11-03 02:40:53,943 INFO L138 BoogieDeclarations]: Found implementation of procedure save_sm_roots [2022-11-03 02:40:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure __complete_mapping_preparation [2022-11-03 02:40:53,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __complete_mapping_preparation [2022-11-03 02:40:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:40:53,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:40:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure error_retry_list [2022-11-03 02:40:53,944 INFO L138 BoogieDeclarations]: Found implementation of procedure error_retry_list [2022-11-03 02:40:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure process_prepared_discard_passdown [2022-11-03 02:40:53,944 INFO L138 BoogieDeclarations]: Found implementation of procedure process_prepared_discard_passdown [2022-11-03 02:40:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2022-11-03 02:40:53,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2022-11-03 02:40:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:40:53,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:40:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure dm_btree_empty [2022-11-03 02:40:53,957 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_btree_empty [2022-11-03 02:40:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2022-11-03 02:40:53,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2022-11-03 02:40:53,958 INFO L130 BoogieDeclarations]: Found specification of procedure to_noflush [2022-11-03 02:40:53,958 INFO L138 BoogieDeclarations]: Found implementation of procedure to_noflush [2022-11-03 02:40:53,958 INFO L130 BoogieDeclarations]: Found specification of procedure block_to_sectors [2022-11-03 02:40:53,958 INFO L138 BoogieDeclarations]: Found implementation of procedure block_to_sectors [2022-11-03 02:40:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-03 02:40:53,959 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-03 02:40:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure pool_status [2022-11-03 02:40:53,959 INFO L138 BoogieDeclarations]: Found implementation of procedure pool_status [2022-11-03 02:40:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure unpack_block_time [2022-11-03 02:40:53,959 INFO L138 BoogieDeclarations]: Found implementation of procedure unpack_block_time [2022-11-03 02:40:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure error_thin_bio_list [2022-11-03 02:40:53,960 INFO L138 BoogieDeclarations]: Found implementation of procedure error_thin_bio_list [2022-11-03 02:40:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_pop [2022-11-03 02:40:53,960 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_pop [2022-11-03 02:40:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 02:40:53,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 02:40:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:40:53,961 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:40:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure process_discard_cell_passdown [2022-11-03 02:40:53,961 INFO L138 BoogieDeclarations]: Found implementation of procedure process_discard_cell_passdown [2022-11-03 02:40:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure thin_defer_cell [2022-11-03 02:40:53,962 INFO L138 BoogieDeclarations]: Found implementation of procedure thin_defer_cell [2022-11-03 02:40:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-11-03 02:40:53,962 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-11-03 02:40:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure copy_complete [2022-11-03 02:40:53,962 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_complete [2022-11-03 02:40:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-03 02:40:53,963 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-03 02:40:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure __resize_space_map [2022-11-03 02:40:53,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __resize_space_map [2022-11-03 02:40:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure pool_presuspend [2022-11-03 02:40:53,976 INFO L138 BoogieDeclarations]: Found implementation of procedure pool_presuspend [2022-11-03 02:40:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure inc_remap_and_issue_cell [2022-11-03 02:40:53,977 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_remap_and_issue_cell [2022-11-03 02:40:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure pool_message [2022-11-03 02:40:53,977 INFO L138 BoogieDeclarations]: Found implementation of procedure pool_message [2022-11-03 02:40:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:40:53,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:40:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure break_up_discard_bio [2022-11-03 02:40:53,978 INFO L138 BoogieDeclarations]: Found implementation of procedure break_up_discard_bio [2022-11-03 02:40:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure process_discard_cell_no_passdown [2022-11-03 02:40:53,978 INFO L138 BoogieDeclarations]: Found implementation of procedure process_discard_cell_no_passdown [2022-11-03 02:40:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure dm_sm_inc_block [2022-11-03 02:40:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_sm_inc_block [2022-11-03 02:40:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure dm_pool_block_is_used [2022-11-03 02:40:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_pool_block_is_used [2022-11-03 02:40:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 02:40:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 02:40:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoull [2022-11-03 02:40:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoull [2022-11-03 02:40:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure commit [2022-11-03 02:40:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure commit [2022-11-03 02:40:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2022-11-03 02:40:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2022-11-03 02:40:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_md [2022-11-03 02:40:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_md [2022-11-03 02:40:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure process_prepared_mapping [2022-11-03 02:40:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure process_prepared_mapping [2022-11-03 02:40:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:40:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:40:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:40:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:40:53,982 INFO L130 BoogieDeclarations]: Found specification of procedure dm_per_bio_data [2022-11-03 02:40:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_per_bio_data [2022-11-03 02:40:53,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_26 [2022-11-03 02:40:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_26 [2022-11-03 02:40:53,982 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_min [2022-11-03 02:40:53,983 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_min [2022-11-03 02:40:53,983 INFO L130 BoogieDeclarations]: Found specification of procedure process_thin_deferred_bios [2022-11-03 02:40:53,983 INFO L138 BoogieDeclarations]: Found implementation of procedure process_thin_deferred_bios [2022-11-03 02:40:53,983 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-03 02:40:53,983 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-03 02:40:53,983 INFO L130 BoogieDeclarations]: Found specification of procedure do_waker [2022-11-03 02:40:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure do_waker [2022-11-03 02:40:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure get_dev_size [2022-11-03 02:40:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dev_size [2022-11-03 02:40:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure dm_pool_issue_prefetches [2022-11-03 02:40:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_pool_issue_prefetches [2022-11-03 02:40:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure thin_postsuspend [2022-11-03 02:40:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure thin_postsuspend [2022-11-03 02:40:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure __process_bio_read_only [2022-11-03 02:40:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __process_bio_read_only [2022-11-03 02:40:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure process_deferred_bios [2022-11-03 02:40:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure process_deferred_bios [2022-11-03 02:40:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure thin_map [2022-11-03 02:40:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure thin_map [2022-11-03 02:40:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure pool_presuspend_undo [2022-11-03 02:40:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure pool_presuspend_undo [2022-11-03 02:40:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:40:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:40:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 02:40:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 02:40:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-03 02:40:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-03 02:40:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure process_prepared_discard_no_passdown [2022-11-03 02:40:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure process_prepared_discard_no_passdown [2022-11-03 02:40:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure __begin_transaction [2022-11-03 02:40:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __begin_transaction [2022-11-03 02:40:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure pool_postsuspend [2022-11-03 02:40:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure pool_postsuspend [2022-11-03 02:40:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:40:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:40:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:40:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:40:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_location [2022-11-03 02:40:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_location [2022-11-03 02:40:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-03 02:40:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-03 02:40:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_resize_metadata_dev [2022-11-03 02:40:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_resize_metadata_dev [2022-11-03 02:40:53,990 INFO L130 BoogieDeclarations]: Found specification of procedure __open_device [2022-11-03 02:40:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __open_device [2022-11-03 02:40:53,990 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bio_prison_destroy [2022-11-03 02:40:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bio_prison_destroy [2022-11-03 02:40:53,990 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-03 02:40:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-03 02:40:53,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_dm_thin_pool_table [2022-11-03 02:40:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_dm_thin_pool_table [2022-11-03 02:40:53,991 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_event [2022-11-03 02:40:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_event [2022-11-03 02:40:53,991 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2022-11-03 02:40:53,992 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2022-11-03 02:40:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put [2022-11-03 02:40:53,992 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put [2022-11-03 02:40:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:40:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:40:53,992 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:40:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_dec [2022-11-03 02:40:53,993 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_dec [2022-11-03 02:40:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2022-11-03 02:40:53,995 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2022-11-03 02:40:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure build_virtual_key [2022-11-03 02:40:53,995 INFO L138 BoogieDeclarations]: Found implementation of procedure build_virtual_key [2022-11-03 02:40:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:40:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_inc [2022-11-03 02:40:53,996 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_inc [2022-11-03 02:40:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure __format_metadata [2022-11-03 02:40:53,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __format_metadata [2022-11-03 02:40:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dm_block_t~0~TO~int [2022-11-03 02:40:53,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dm_block_t~0~TO~int [2022-11-03 02:40:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-11-03 02:40:53,997 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-11-03 02:40:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-11-03 02:40:53,997 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-11-03 02:40:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure dm_pool_close_thin_device [2022-11-03 02:40:53,997 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_pool_close_thin_device [2022-11-03 02:40:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure set_pool_mode [2022-11-03 02:40:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure set_pool_mode [2022-11-03 02:40:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure dm_sm_destroy [2022-11-03 02:40:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_sm_destroy [2022-11-03 02:40:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_resize_data_dev [2022-11-03 02:40:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_resize_data_dev [2022-11-03 02:40:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2022-11-03 02:40:53,999 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2022-11-03 02:40:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure read_dev_id [2022-11-03 02:40:53,999 INFO L138 BoogieDeclarations]: Found implementation of procedure read_dev_id [2022-11-03 02:40:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:40:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_data [2022-11-03 02:40:54,000 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_data [2022-11-03 02:40:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin_and_issue [2022-11-03 02:40:54,000 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin_and_issue [2022-11-03 02:40:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure dm_sm_commit [2022-11-03 02:40:54,000 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_sm_commit [2022-11-03 02:40:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:40:54,001 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:40:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-03 02:40:54,001 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-03 02:40:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 02:40:54,001 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 02:40:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure __merge_bio_list [2022-11-03 02:40:54,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __merge_bio_list [2022-11-03 02:40:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure dm_sm_dec_block [2022-11-03 02:40:54,002 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_sm_dec_block [2022-11-03 02:40:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure pool_dtr [2022-11-03 02:40:54,002 INFO L138 BoogieDeclarations]: Found implementation of procedure pool_dtr [2022-11-03 02:40:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure get_first_thin [2022-11-03 02:40:54,003 INFO L138 BoogieDeclarations]: Found implementation of procedure get_first_thin [2022-11-03 02:40:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 02:40:54,003 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 02:40:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure __open_or_format_metadata [2022-11-03 02:40:54,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __open_or_format_metadata [2022-11-03 02:40:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure dm_pool_commit_metadata [2022-11-03 02:40:54,004 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_pool_commit_metadata [2022-11-03 02:40:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_init [2022-11-03 02:40:54,004 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_init [2022-11-03 02:40:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-03 02:40:54,004 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-03 02:40:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure get_pool_mode [2022-11-03 02:40:54,005 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pool_mode [2022-11-03 02:40:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure notify_of_pool_mode_change [2022-11-03 02:40:54,005 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_of_pool_mode_change [2022-11-03 02:40:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2022-11-03 02:40:54,005 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2022-11-03 02:40:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 02:40:54,006 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 02:40:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure remap_and_issue_overwrite [2022-11-03 02:40:54,006 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_and_issue_overwrite [2022-11-03 02:40:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure dm_btree_insert [2022-11-03 02:40:54,006 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_btree_insert [2022-11-03 02:40:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure wake_worker [2022-11-03 02:40:54,007 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_worker [2022-11-03 02:40:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure throttle_unlock [2022-11-03 02:40:54,007 INFO L138 BoogieDeclarations]: Found implementation of procedure throttle_unlock [2022-11-03 02:40:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure io_overwrites_block [2022-11-03 02:40:54,007 INFO L138 BoogieDeclarations]: Found implementation of procedure io_overwrites_block [2022-11-03 02:40:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure build_data_key [2022-11-03 02:40:54,008 INFO L138 BoogieDeclarations]: Found implementation of procedure build_data_key [2022-11-03 02:40:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure get_bio_block [2022-11-03 02:40:54,008 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bio_block [2022-11-03 02:40:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure process_bio [2022-11-03 02:40:54,008 INFO L138 BoogieDeclarations]: Found implementation of procedure process_bio [2022-11-03 02:40:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure dm_deferred_set_create [2022-11-03 02:40:54,009 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_deferred_set_create [2022-11-03 02:40:54,009 INFO L130 BoogieDeclarations]: Found specification of procedure zero_fill_bio [2022-11-03 02:40:54,009 INFO L138 BoogieDeclarations]: Found implementation of procedure zero_fill_bio [2022-11-03 02:40:54,009 INFO L130 BoogieDeclarations]: Found specification of procedure thin_iterate_devices [2022-11-03 02:40:54,009 INFO L138 BoogieDeclarations]: Found implementation of procedure thin_iterate_devices [2022-11-03 02:40:54,009 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_read_lock [2022-11-03 02:40:54,010 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_read_lock [2022-11-03 02:40:54,010 INFO L130 BoogieDeclarations]: Found specification of procedure provision_block [2022-11-03 02:40:54,010 INFO L138 BoogieDeclarations]: Found implementation of procedure provision_block [2022-11-03 02:40:54,010 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:40:54,010 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:40:54,010 INFO L130 BoogieDeclarations]: Found specification of procedure __open_metadata [2022-11-03 02:40:54,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __open_metadata [2022-11-03 02:40:54,011 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu [2022-11-03 02:40:54,011 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu [2022-11-03 02:40:54,011 INFO L130 BoogieDeclarations]: Found specification of procedure issue_discard [2022-11-03 02:40:54,011 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_discard [2022-11-03 02:40:54,011 INFO L130 BoogieDeclarations]: Found specification of procedure dm_device_name [2022-11-03 02:40:54,011 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_device_name [2022-11-03 02:40:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_dm_thin_pool_table [2022-11-03 02:40:54,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_dm_thin_pool_table [2022-11-03 02:40:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:40:54,012 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:40:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure abort_transaction [2022-11-03 02:40:54,012 INFO L138 BoogieDeclarations]: Found implementation of procedure abort_transaction [2022-11-03 02:40:54,013 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-03 02:40:54,013 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-03 02:40:54,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:40:54,013 INFO L130 BoogieDeclarations]: Found specification of procedure remap_and_issue_shared_cell [2022-11-03 02:40:54,013 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_and_issue_shared_cell [2022-11-03 02:40:54,013 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_zero [2022-11-03 02:40:54,013 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_zero [2022-11-03 02:40:54,014 INFO L130 BoogieDeclarations]: Found specification of procedure __setup_btree_details [2022-11-03 02:40:54,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __setup_btree_details [2022-11-03 02:40:54,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:40:54,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:40:54,014 INFO L130 BoogieDeclarations]: Found specification of procedure dm_pool_get_free_block_count [2022-11-03 02:40:54,014 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_pool_get_free_block_count [2022-11-03 02:40:54,015 INFO L130 BoogieDeclarations]: Found specification of procedure pool_map [2022-11-03 02:40:54,015 INFO L138 BoogieDeclarations]: Found implementation of procedure pool_map [2022-11-03 02:40:54,015 INFO L130 BoogieDeclarations]: Found specification of procedure __commit_transaction [2022-11-03 02:40:54,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __commit_transaction [2022-11-03 02:40:54,015 INFO L130 BoogieDeclarations]: Found specification of procedure dm_btree_lookup [2022-11-03 02:40:54,015 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_btree_lookup [2022-11-03 02:40:54,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 02:40:54,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 02:40:54,016 INFO L130 BoogieDeclarations]: Found specification of procedure error_bio_list [2022-11-03 02:40:54,016 INFO L138 BoogieDeclarations]: Found implementation of procedure error_bio_list [2022-11-03 02:40:54,016 INFO L130 BoogieDeclarations]: Found specification of procedure pool_work_complete [2022-11-03 02:40:54,016 INFO L138 BoogieDeclarations]: Found implementation of procedure pool_work_complete [2022-11-03 02:40:54,017 INFO L130 BoogieDeclarations]: Found specification of procedure cell_defer_no_holder [2022-11-03 02:40:54,017 INFO L138 BoogieDeclarations]: Found implementation of procedure cell_defer_no_holder [2022-11-03 02:40:54,017 INFO L130 BoogieDeclarations]: Found specification of procedure superblock_lock [2022-11-03 02:40:54,017 INFO L138 BoogieDeclarations]: Found implementation of procedure superblock_lock [2022-11-03 02:40:54,017 INFO L130 BoogieDeclarations]: Found specification of procedure retry_on_resume [2022-11-03 02:40:54,017 INFO L138 BoogieDeclarations]: Found implementation of procedure retry_on_resume [2022-11-03 02:40:54,018 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 02:40:54,018 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 02:40:54,018 INFO L130 BoogieDeclarations]: Found specification of procedure pool_merge [2022-11-03 02:40:54,018 INFO L138 BoogieDeclarations]: Found implementation of procedure pool_merge [2022-11-03 02:40:54,018 INFO L130 BoogieDeclarations]: Found specification of procedure cell_error [2022-11-03 02:40:54,018 INFO L138 BoogieDeclarations]: Found implementation of procedure cell_error [2022-11-03 02:40:54,019 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-03 02:40:54,019 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-03 02:40:54,019 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_add [2022-11-03 02:40:54,019 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_add [2022-11-03 02:40:54,019 INFO L130 BoogieDeclarations]: Found specification of procedure dm_pool_abort_metadata [2022-11-03 02:40:54,019 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_pool_abort_metadata [2022-11-03 02:40:54,019 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2022-11-03 02:40:54,020 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2022-11-03 02:40:54,020 INFO L130 BoogieDeclarations]: Found specification of procedure __pool_inc [2022-11-03 02:40:54,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __pool_inc [2022-11-03 02:40:54,020 INFO L130 BoogieDeclarations]: Found specification of procedure metadata_operation_failed [2022-11-03 02:40:54,020 INFO L138 BoogieDeclarations]: Found implementation of procedure metadata_operation_failed [2022-11-03 02:40:54,020 INFO L130 BoogieDeclarations]: Found specification of procedure check_arg_count [2022-11-03 02:40:54,021 INFO L138 BoogieDeclarations]: Found implementation of procedure check_arg_count [2022-11-03 02:40:54,021 INFO L130 BoogieDeclarations]: Found specification of procedure dm_sm_get_nr_blocks [2022-11-03 02:40:54,021 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_sm_get_nr_blocks [2022-11-03 02:40:54,021 INFO L130 BoogieDeclarations]: Found specification of procedure remap_and_issue [2022-11-03 02:40:54,021 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_and_issue [2022-11-03 02:40:54,021 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-03 02:40:54,021 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-03 02:40:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_merge [2022-11-03 02:40:54,022 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_merge [2022-11-03 02:40:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure __pool_dec [2022-11-03 02:40:54,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __pool_dec [2022-11-03 02:40:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure dm_deferred_set_destroy [2022-11-03 02:40:54,022 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_deferred_set_destroy [2022-11-03 02:40:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure process_shared_bio [2022-11-03 02:40:54,023 INFO L138 BoogieDeclarations]: Found implementation of procedure process_shared_bio [2022-11-03 02:40:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-11-03 02:40:54,023 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-11-03 02:40:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure bio_detain [2022-11-03 02:40:54,023 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_detain [2022-11-03 02:40:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 02:40:54,024 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 02:40:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure thin_dtr [2022-11-03 02:40:54,024 INFO L138 BoogieDeclarations]: Found implementation of procedure thin_dtr [2022-11-03 02:40:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free_slab [2022-11-03 02:40:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure __write_initial_superblock [2022-11-03 02:40:54,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __write_initial_superblock [2022-11-03 02:40:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bio_prison_free_cell [2022-11-03 02:40:54,025 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bio_prison_free_cell [2022-11-03 02:40:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_next_mapping [2022-11-03 02:40:54,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_next_mapping [2022-11-03 02:40:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_destroy [2022-11-03 02:40:54,025 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_destroy [2022-11-03 02:40:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure handle_unserviceable_bio [2022-11-03 02:40:54,026 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_unserviceable_bio [2022-11-03 02:40:54,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:40:54,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:40:54,026 INFO L130 BoogieDeclarations]: Found specification of procedure __destroy_persistent_data_objects [2022-11-03 02:40:54,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __destroy_persistent_data_objects [2022-11-03 02:40:54,026 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_copy [2022-11-03 02:40:54,027 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_copy [2022-11-03 02:40:54,027 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-03 02:40:54,027 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-03 02:40:54,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:40:54,027 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 02:40:54,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 02:40:54,027 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_unlock [2022-11-03 02:40:54,028 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_unlock [2022-11-03 02:40:54,028 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-11-03 02:40:54,028 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-11-03 02:40:54,028 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2022-11-03 02:40:54,028 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2022-11-03 02:40:54,028 INFO L130 BoogieDeclarations]: Found specification of procedure process_cell [2022-11-03 02:40:54,029 INFO L138 BoogieDeclarations]: Found implementation of procedure process_cell [2022-11-03 02:40:54,029 INFO L130 BoogieDeclarations]: Found specification of procedure process_thin_deferred_cells [2022-11-03 02:40:54,029 INFO L138 BoogieDeclarations]: Found implementation of procedure process_thin_deferred_cells [2022-11-03 02:40:54,029 INFO L130 BoogieDeclarations]: Found specification of procedure pool_resume [2022-11-03 02:40:54,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pool_resume [2022-11-03 02:40:55,655 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:40:55,660 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:40:56,031 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:41:08,730 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:41:11,550 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:41:11,550 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:41:11,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:41:11 BoogieIcfgContainer [2022-11-03 02:41:11,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:41:11,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:41:11,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:41:11,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:41:11,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:40:47" (1/3) ... [2022-11-03 02:41:11,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177027d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:41:11, skipping insertion in model container [2022-11-03 02:41:11,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:52" (2/3) ... [2022-11-03 02:41:11,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177027d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:41:11, skipping insertion in model container [2022-11-03 02:41:11,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:41:11" (3/3) ... [2022-11-03 02:41:11,565 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-thin-pool.ko-entry_point.cil.out.i [2022-11-03 02:41:11,586 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:41:11,586 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:41:11,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:41:11,734 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1f082459, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:41:11,734 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:41:11,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 3719 states, 2179 states have (on average 1.301973382285452) internal successors, (2837), 2299 states have internal predecessors, (2837), 1252 states have call successors, (1252), 287 states have call predecessors, (1252), 286 states have return successors, (1244), 1206 states have call predecessors, (1244), 1244 states have call successors, (1244) [2022-11-03 02:41:11,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-11-03 02:41:11,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:11,779 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:41:11,779 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:41:11,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:11,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1835062071, now seen corresponding path program 1 times [2022-11-03 02:41:11,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:11,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960928387] [2022-11-03 02:41:11,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:11,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:13,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1837 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1837 trivial. 0 not checked. [2022-11-03 02:41:13,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:13,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960928387] [2022-11-03 02:41:13,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960928387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:13,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:13,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:41:13,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127112010] [2022-11-03 02:41:13,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:13,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:41:13,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:13,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:41:13,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:41:13,137 INFO L87 Difference]: Start difference. First operand has 3719 states, 2179 states have (on average 1.301973382285452) internal successors, (2837), 2299 states have internal predecessors, (2837), 1252 states have call successors, (1252), 287 states have call predecessors, (1252), 286 states have return successors, (1244), 1206 states have call predecessors, (1244), 1244 states have call successors, (1244) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-03 02:41:15,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:41:19,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:41:22,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:41:22,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:22,756 INFO L93 Difference]: Finished difference Result 10349 states and 14987 transitions. [2022-11-03 02:41:22,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:41:22,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 329 [2022-11-03 02:41:22,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:22,838 INFO L225 Difference]: With dead ends: 10349 [2022-11-03 02:41:22,839 INFO L226 Difference]: Without dead ends: 6649 [2022-11-03 02:41:22,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:41:22,876 INFO L413 NwaCegarLoop]: 6407 mSDtfsCounter, 4163 mSDsluCounter, 5190 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4165 SdHoareTripleChecker+Valid, 11179 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:22,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4165 Valid, 11179 Invalid, 1045 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1041 Invalid, 3 Unknown, 0 Unchecked, 9.0s Time] [2022-11-03 02:41:22,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6649 states. [2022-11-03 02:41:23,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6649 to 6633. [2022-11-03 02:41:23,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 3864 states have (on average 1.2895962732919255) internal successors, (4983), 4076 states have internal predecessors, (4983), 2211 states have call successors, (2211), 559 states have call predecessors, (2211), 557 states have return successors, (2205), 2127 states have call predecessors, (2205), 2205 states have call successors, (2205) [2022-11-03 02:41:23,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 9399 transitions. [2022-11-03 02:41:23,373 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 9399 transitions. Word has length 329 [2022-11-03 02:41:23,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:23,377 INFO L495 AbstractCegarLoop]: Abstraction has 6633 states and 9399 transitions. [2022-11-03 02:41:23,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-03 02:41:23,378 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 9399 transitions. [2022-11-03 02:41:23,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2022-11-03 02:41:23,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:23,391 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:41:23,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:41:23,392 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:41:23,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:23,393 INFO L85 PathProgramCache]: Analyzing trace with hash -2026989813, now seen corresponding path program 1 times [2022-11-03 02:41:23,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:23,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607951323] [2022-11-03 02:41:23,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:23,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:24,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1837 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1837 trivial. 0 not checked. [2022-11-03 02:41:24,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:24,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607951323] [2022-11-03 02:41:24,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607951323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:24,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:24,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:41:24,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620473222] [2022-11-03 02:41:24,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:24,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:41:24,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:24,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:41:24,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:41:24,142 INFO L87 Difference]: Start difference. First operand 6633 states and 9399 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-03 02:41:25,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:41:29,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:41:32,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:41:33,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:33,080 INFO L93 Difference]: Finished difference Result 19169 states and 27076 transitions. [2022-11-03 02:41:33,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:41:33,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 335 [2022-11-03 02:41:33,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:33,175 INFO L225 Difference]: With dead ends: 19169 [2022-11-03 02:41:33,175 INFO L226 Difference]: Without dead ends: 12597 [2022-11-03 02:41:33,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:41:33,219 INFO L413 NwaCegarLoop]: 7690 mSDtfsCounter, 4845 mSDsluCounter, 5075 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4847 SdHoareTripleChecker+Valid, 12349 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:33,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4847 Valid, 12349 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1149 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2022-11-03 02:41:33,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12597 states. [2022-11-03 02:41:34,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12597 to 12582. [2022-11-03 02:41:34,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12582 states, 7305 states have (on average 1.2847364818617386) internal successors, (9385), 7720 states have internal predecessors, (9385), 4185 states have call successors, (4185), 1095 states have call predecessors, (4185), 1091 states have return successors, (4179), 4022 states have call predecessors, (4179), 4179 states have call successors, (4179) [2022-11-03 02:41:34,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12582 states to 12582 states and 17749 transitions. [2022-11-03 02:41:34,150 INFO L78 Accepts]: Start accepts. Automaton has 12582 states and 17749 transitions. Word has length 335 [2022-11-03 02:41:34,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:34,154 INFO L495 AbstractCegarLoop]: Abstraction has 12582 states and 17749 transitions. [2022-11-03 02:41:34,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-03 02:41:34,155 INFO L276 IsEmpty]: Start isEmpty. Operand 12582 states and 17749 transitions. [2022-11-03 02:41:34,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-11-03 02:41:34,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:34,163 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:41:34,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:41:34,163 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:41:34,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:34,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1335652355, now seen corresponding path program 1 times [2022-11-03 02:41:34,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:34,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796785648] [2022-11-03 02:41:34,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:34,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:34,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1839 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1839 trivial. 0 not checked. [2022-11-03 02:41:34,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:34,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796785648] [2022-11-03 02:41:34,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796785648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:34,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:34,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:41:34,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390776458] [2022-11-03 02:41:34,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:34,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:41:34,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:34,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:41:34,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:41:34,851 INFO L87 Difference]: Start difference. First operand 12582 states and 17749 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-03 02:41:36,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:41:41,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:41:43,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:41:46,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:41:47,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:47,345 INFO L93 Difference]: Finished difference Result 37474 states and 52852 transitions. [2022-11-03 02:41:47,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:41:47,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 338 [2022-11-03 02:41:47,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:47,516 INFO L225 Difference]: With dead ends: 37474 [2022-11-03 02:41:47,516 INFO L226 Difference]: Without dead ends: 24961 [2022-11-03 02:41:47,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:41:47,591 INFO L413 NwaCegarLoop]: 8600 mSDtfsCounter, 5123 mSDsluCounter, 5243 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5125 SdHoareTripleChecker+Valid, 13428 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:47,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5125 Valid, 13428 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1128 Invalid, 4 Unknown, 0 Unchecked, 11.5s Time] [2022-11-03 02:41:47,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24961 states. [2022-11-03 02:41:48,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24961 to 24944. [2022-11-03 02:41:48,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24944 states, 14497 states have (on average 1.2844726495136924) internal successors, (18621), 15311 states have internal predecessors, (18621), 8278 states have call successors, (8278), 2176 states have call predecessors, (8278), 2168 states have return successors, (8272), 7964 states have call predecessors, (8272), 8272 states have call successors, (8272) [2022-11-03 02:41:49,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24944 states to 24944 states and 35171 transitions. [2022-11-03 02:41:49,063 INFO L78 Accepts]: Start accepts. Automaton has 24944 states and 35171 transitions. Word has length 338 [2022-11-03 02:41:49,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:49,064 INFO L495 AbstractCegarLoop]: Abstraction has 24944 states and 35171 transitions. [2022-11-03 02:41:49,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-03 02:41:49,064 INFO L276 IsEmpty]: Start isEmpty. Operand 24944 states and 35171 transitions. [2022-11-03 02:41:49,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-11-03 02:41:49,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:49,071 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:41:49,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:41:49,072 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:41:49,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:49,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1663877902, now seen corresponding path program 1 times [2022-11-03 02:41:49,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:49,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204749616] [2022-11-03 02:41:49,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:49,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:49,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:49,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1837 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1837 trivial. 0 not checked. [2022-11-03 02:41:49,607 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:49,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204749616] [2022-11-03 02:41:49,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204749616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:49,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:49,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:41:49,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103021216] [2022-11-03 02:41:49,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:49,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:41:49,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:49,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:41:49,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:41:49,609 INFO L87 Difference]: Start difference. First operand 24944 states and 35171 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-03 02:41:51,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:41:54,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:41:58,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:42:00,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:42:00,170 INFO L93 Difference]: Finished difference Result 49804 states and 70220 transitions. [2022-11-03 02:42:00,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:42:00,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 343 [2022-11-03 02:42:00,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:42:00,453 INFO L225 Difference]: With dead ends: 49804 [2022-11-03 02:42:00,453 INFO L226 Difference]: Without dead ends: 49801 [2022-11-03 02:42:00,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:42:00,487 INFO L413 NwaCegarLoop]: 6061 mSDtfsCounter, 5183 mSDsluCounter, 5180 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5185 SdHoareTripleChecker+Valid, 10822 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:42:00,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5185 Valid, 10822 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 842 Invalid, 3 Unknown, 0 Unchecked, 9.2s Time] [2022-11-03 02:42:00,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49801 states. [2022-11-03 02:42:03,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49801 to 49796. [2022-11-03 02:42:03,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49796 states, 28949 states have (on average 1.2847766762237038) internal successors, (37193), 30572 states have internal predecessors, (37193), 16513 states have call successors, (16513), 4349 states have call predecessors, (16513), 4333 states have return successors, (16507), 15890 states have call predecessors, (16507), 16507 states have call successors, (16507) [2022-11-03 02:42:03,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49796 states to 49796 states and 70213 transitions. [2022-11-03 02:42:03,392 INFO L78 Accepts]: Start accepts. Automaton has 49796 states and 70213 transitions. Word has length 343 [2022-11-03 02:42:03,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:42:03,394 INFO L495 AbstractCegarLoop]: Abstraction has 49796 states and 70213 transitions. [2022-11-03 02:42:03,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-03 02:42:03,395 INFO L276 IsEmpty]: Start isEmpty. Operand 49796 states and 70213 transitions. [2022-11-03 02:42:03,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2022-11-03 02:42:03,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:42:03,401 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:42:03,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:42:03,402 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:42:03,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:42:03,402 INFO L85 PathProgramCache]: Analyzing trace with hash 38340786, now seen corresponding path program 1 times [2022-11-03 02:42:03,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:42:03,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522740703] [2022-11-03 02:42:03,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:42:03,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:42:03,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:42:04,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1837 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1837 trivial. 0 not checked. [2022-11-03 02:42:04,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:42:04,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522740703] [2022-11-03 02:42:04,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522740703] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:42:04,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:42:04,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:42:04,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415035606] [2022-11-03 02:42:04,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:42:04,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:42:04,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:42:04,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:42:04,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:42:04,368 INFO L87 Difference]: Start difference. First operand 49796 states and 70213 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-03 02:42:06,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:42:09,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:42:13,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:42:14,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:42:14,612 INFO L93 Difference]: Finished difference Result 49805 states and 70221 transitions. [2022-11-03 02:42:14,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:42:14,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 344 [2022-11-03 02:42:14,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:42:14,924 INFO L225 Difference]: With dead ends: 49805 [2022-11-03 02:42:14,924 INFO L226 Difference]: Without dead ends: 49802 [2022-11-03 02:42:14,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:42:14,951 INFO L413 NwaCegarLoop]: 6061 mSDtfsCounter, 5180 mSDsluCounter, 5183 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5182 SdHoareTripleChecker+Valid, 10825 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:42:14,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5182 Valid, 10825 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 842 Invalid, 3 Unknown, 0 Unchecked, 8.7s Time] [2022-11-03 02:42:15,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49802 states. [2022-11-03 02:42:17,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49802 to 49797. [2022-11-03 02:42:17,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49797 states, 28950 states have (on average 1.2847668393782383) internal successors, (37194), 30573 states have internal predecessors, (37194), 16513 states have call successors, (16513), 4349 states have call predecessors, (16513), 4333 states have return successors, (16507), 15890 states have call predecessors, (16507), 16507 states have call successors, (16507) [2022-11-03 02:42:18,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49797 states to 49797 states and 70214 transitions. [2022-11-03 02:42:18,273 INFO L78 Accepts]: Start accepts. Automaton has 49797 states and 70214 transitions. Word has length 344 [2022-11-03 02:42:18,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:42:18,274 INFO L495 AbstractCegarLoop]: Abstraction has 49797 states and 70214 transitions. [2022-11-03 02:42:18,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-03 02:42:18,274 INFO L276 IsEmpty]: Start isEmpty. Operand 49797 states and 70214 transitions. [2022-11-03 02:42:18,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2022-11-03 02:42:18,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:42:18,281 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:42:18,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:42:18,282 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:42:18,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:42:18,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1186302609, now seen corresponding path program 1 times [2022-11-03 02:42:18,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:42:18,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826499709] [2022-11-03 02:42:18,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:42:18,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:42:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:42:19,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1837 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1837 trivial. 0 not checked. [2022-11-03 02:42:19,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:42:19,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826499709] [2022-11-03 02:42:19,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826499709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:42:19,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:42:19,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:42:19,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564156534] [2022-11-03 02:42:19,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:42:19,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:42:19,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:42:19,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:42:19,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:42:19,085 INFO L87 Difference]: Start difference. First operand 49797 states and 70214 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-03 02:42:21,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:42:24,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:42:28,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:42:29,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:42:29,473 INFO L93 Difference]: Finished difference Result 49806 states and 70222 transitions. [2022-11-03 02:42:29,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:42:29,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 345 [2022-11-03 02:42:29,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:42:29,645 INFO L225 Difference]: With dead ends: 49806 [2022-11-03 02:42:29,645 INFO L226 Difference]: Without dead ends: 49803 [2022-11-03 02:42:29,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:42:29,661 INFO L413 NwaCegarLoop]: 6061 mSDtfsCounter, 5177 mSDsluCounter, 5186 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5179 SdHoareTripleChecker+Valid, 10828 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:42:29,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5179 Valid, 10828 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 842 Invalid, 3 Unknown, 0 Unchecked, 8.7s Time] [2022-11-03 02:42:29,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49803 states. [2022-11-03 02:42:31,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49803 to 49798. [2022-11-03 02:42:31,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49798 states, 28951 states have (on average 1.2847570032123243) internal successors, (37195), 30574 states have internal predecessors, (37195), 16513 states have call successors, (16513), 4349 states have call predecessors, (16513), 4333 states have return successors, (16507), 15890 states have call predecessors, (16507), 16507 states have call successors, (16507) [2022-11-03 02:42:32,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49798 states to 49798 states and 70215 transitions. [2022-11-03 02:42:32,252 INFO L78 Accepts]: Start accepts. Automaton has 49798 states and 70215 transitions. Word has length 345 [2022-11-03 02:42:32,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:42:32,254 INFO L495 AbstractCegarLoop]: Abstraction has 49798 states and 70215 transitions. [2022-11-03 02:42:32,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-03 02:42:32,254 INFO L276 IsEmpty]: Start isEmpty. Operand 49798 states and 70215 transitions. [2022-11-03 02:42:32,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-11-03 02:42:32,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:42:32,262 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:42:32,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:42:32,263 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:42:32,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:42:32,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1881581675, now seen corresponding path program 1 times [2022-11-03 02:42:32,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:42:32,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095195173] [2022-11-03 02:42:32,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:42:32,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:42:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:42:33,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1837 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1837 trivial. 0 not checked. [2022-11-03 02:42:33,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:42:33,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095195173] [2022-11-03 02:42:33,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095195173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:42:33,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:42:33,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:42:33,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543945911] [2022-11-03 02:42:33,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:42:33,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:42:33,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:42:33,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:42:33,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:42:33,042 INFO L87 Difference]: Start difference. First operand 49798 states and 70215 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-03 02:42:35,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:42:38,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:42:40,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:42:44,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:42:47,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:42:47,417 INFO L93 Difference]: Finished difference Result 139706 states and 200257 transitions. [2022-11-03 02:42:47,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:42:47,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 346 [2022-11-03 02:42:47,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:42:47,894 INFO L225 Difference]: With dead ends: 139706 [2022-11-03 02:42:47,894 INFO L226 Difference]: Without dead ends: 89967 [2022-11-03 02:42:48,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:42:48,118 INFO L413 NwaCegarLoop]: 6399 mSDtfsCounter, 5012 mSDsluCounter, 3889 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5014 SdHoareTripleChecker+Valid, 9935 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:42:48,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5014 Valid, 9935 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 856 Invalid, 4 Unknown, 0 Unchecked, 10.7s Time] [2022-11-03 02:42:48,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89967 states. [2022-11-03 02:42:51,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89967 to 89838. [2022-11-03 02:42:51,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89838 states, 51439 states have (on average 1.2693481599564533) internal successors, (65294), 54596 states have internal predecessors, (65294), 30082 states have call successors, (30082), 8373 states have call predecessors, (30082), 8316 states have return successors, (31481), 28844 states have call predecessors, (31481), 30073 states have call successors, (31481) [2022-11-03 02:42:52,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89838 states to 89838 states and 126857 transitions. [2022-11-03 02:42:52,778 INFO L78 Accepts]: Start accepts. Automaton has 89838 states and 126857 transitions. Word has length 346 [2022-11-03 02:42:52,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:42:52,779 INFO L495 AbstractCegarLoop]: Abstraction has 89838 states and 126857 transitions. [2022-11-03 02:42:52,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-03 02:42:52,779 INFO L276 IsEmpty]: Start isEmpty. Operand 89838 states and 126857 transitions. [2022-11-03 02:42:52,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2022-11-03 02:42:52,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:42:52,790 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 14, 14, 14, 14, 14, 14, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:42:52,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:42:52,791 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:42:52,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:42:52,791 INFO L85 PathProgramCache]: Analyzing trace with hash -582051863, now seen corresponding path program 1 times [2022-11-03 02:42:52,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:42:52,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783021857] [2022-11-03 02:42:52,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:42:52,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:42:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:42:53,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2349 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2349 trivial. 0 not checked. [2022-11-03 02:42:53,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:42:53,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783021857] [2022-11-03 02:42:53,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783021857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:42:53,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:42:53,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:42:53,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644516084] [2022-11-03 02:42:53,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:42:53,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:42:53,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:42:53,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:42:53,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:42:53,744 INFO L87 Difference]: Start difference. First operand 89838 states and 126857 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-03 02:42:55,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:42:59,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:43:03,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:43:06,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:43:06,578 INFO L93 Difference]: Finished difference Result 171867 states and 242167 transitions. [2022-11-03 02:43:06,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:43:06,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 403 [2022-11-03 02:43:06,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:43:07,066 INFO L225 Difference]: With dead ends: 171867 [2022-11-03 02:43:07,066 INFO L226 Difference]: Without dead ends: 87299 [2022-11-03 02:43:07,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:43:07,638 INFO L413 NwaCegarLoop]: 7479 mSDtfsCounter, 3868 mSDsluCounter, 4665 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3870 SdHoareTripleChecker+Valid, 11772 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:43:07,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3870 Valid, 11772 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1050 Invalid, 3 Unknown, 0 Unchecked, 8.5s Time] [2022-11-03 02:43:07,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87299 states. [2022-11-03 02:43:11,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87299 to 87191. [2022-11-03 02:43:11,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87191 states, 49988 states have (on average 1.2723853724893974) internal successors, (63604), 53098 states have internal predecessors, (63604), 29103 states have call successors, (29103), 8150 states have call predecessors, (29103), 8099 states have return successors, (29079), 27870 states have call predecessors, (29079), 29079 states have call successors, (29079) [2022-11-03 02:43:11,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87191 states to 87191 states and 121786 transitions. [2022-11-03 02:43:11,798 INFO L78 Accepts]: Start accepts. Automaton has 87191 states and 121786 transitions. Word has length 403 [2022-11-03 02:43:11,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:43:11,799 INFO L495 AbstractCegarLoop]: Abstraction has 87191 states and 121786 transitions. [2022-11-03 02:43:11,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-03 02:43:11,799 INFO L276 IsEmpty]: Start isEmpty. Operand 87191 states and 121786 transitions. [2022-11-03 02:43:11,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2022-11-03 02:43:11,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:11,856 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 14, 14, 14, 14, 14, 14, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:43:11,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:43:11,856 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:43:11,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:11,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1392821361, now seen corresponding path program 1 times [2022-11-03 02:43:11,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:11,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446288560] [2022-11-03 02:43:11,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:11,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:12,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2357 trivial. 0 not checked. [2022-11-03 02:43:12,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:43:12,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446288560] [2022-11-03 02:43:12,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446288560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:43:12,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:43:12,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:43:12,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174182620] [2022-11-03 02:43:12,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:43:12,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:43:12,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:43:12,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:43:12,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:43:12,558 INFO L87 Difference]: Start difference. First operand 87191 states and 121786 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-03 02:43:13,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:43:15,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []