./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-08_1a-drivers--mtd--mtd.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_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/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_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--mtd.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/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_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/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 cd8248f52e54312770460b05c349f71bb63d094ef2f9e53f87d753bfc5b43661 --- 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 02:14:13,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:14:13,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:14:13,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:14:13,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:14:13,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:14:13,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:14:13,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:14:13,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:14:13,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:14:13,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:14:13,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:14:13,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:14:13,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:14:13,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:14:13,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:14:13,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:14:13,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:14:13,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:14:13,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:14:13,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:14:13,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:14:13,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:14:13,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:14:13,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:14:13,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:14:13,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:14:13,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:14:13,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:14:13,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:14:13,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:14:13,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:14:13,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:14:14,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:14:14,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:14:14,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:14:14,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:14:14,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:14:14,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:14:14,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:14:14,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:14:14,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:14:14,026 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:14:14,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:14:14,027 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:14:14,027 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:14:14,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:14:14,028 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:14:14,028 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:14:14,028 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:14:14,028 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:14:14,029 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:14:14,029 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:14:14,029 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:14:14,029 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:14:14,030 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:14:14,030 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:14:14,030 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:14:14,030 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:14:14,031 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:14:14,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:14:14,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:14:14,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:14:14,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:14:14,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:14:14,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:14:14,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:14:14,033 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:14:14,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:14:14,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:14:14,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:14:14,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:14:14,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:14:14,034 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:14:14,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:14:14,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:14:14,035 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:14:14,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:14:14,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:14:14,036 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:14:14,036 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_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd8248f52e54312770460b05c349f71bb63d094ef2f9e53f87d753bfc5b43661 [2022-11-03 02:14:14,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:14:14,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:14:14,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:14:14,352 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:14:14,353 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:14:14,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--mtd.ko-entry_point.cil.out.i [2022-11-03 02:14:14,443 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/data/8339c805b/3b06c9f88a3047f98a605efe947d7563/FLAGa58fd326e [2022-11-03 02:14:15,492 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:14:15,493 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--mtd.ko-entry_point.cil.out.i [2022-11-03 02:14:15,546 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/data/8339c805b/3b06c9f88a3047f98a605efe947d7563/FLAGa58fd326e [2022-11-03 02:14:15,835 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/data/8339c805b/3b06c9f88a3047f98a605efe947d7563 [2022-11-03 02:14:15,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:14:15,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:14:15,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:14:15,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:14:15,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:14:15,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:14:15" (1/1) ... [2022-11-03 02:14:15,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b0878c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:15, skipping insertion in model container [2022-11-03 02:14:15,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:14:15" (1/1) ... [2022-11-03 02:14:15,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:14:15,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:14:18,751 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_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--mtd.ko-entry_point.cil.out.i[372693,372706] [2022-11-03 02:14:18,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:14:18,926 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:14:19,565 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_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--mtd.ko-entry_point.cil.out.i[372693,372706] [2022-11-03 02:14:19,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:14:19,762 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:14:19,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:19 WrapperNode [2022-11-03 02:14:19,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:14:19,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:14:19,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:14:19,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:14:19,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:19" (1/1) ... [2022-11-03 02:14:19,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:19" (1/1) ... [2022-11-03 02:14:20,195 INFO L138 Inliner]: procedures = 352, calls = 5376, calls flagged for inlining = 117, calls inlined = 101, statements flattened = 8639 [2022-11-03 02:14:20,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:14:20,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:14:20,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:14:20,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:14:20,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:19" (1/1) ... [2022-11-03 02:14:20,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:19" (1/1) ... [2022-11-03 02:14:20,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:19" (1/1) ... [2022-11-03 02:14:20,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:19" (1/1) ... [2022-11-03 02:14:20,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:19" (1/1) ... [2022-11-03 02:14:20,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:19" (1/1) ... [2022-11-03 02:14:20,586 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:19" (1/1) ... [2022-11-03 02:14:20,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:19" (1/1) ... [2022-11-03 02:14:20,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:14:20,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:14:20,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:14:20,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:14:20,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:19" (1/1) ... [2022-11-03 02:14:20,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:14:20,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:14:20,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:14:20,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:14:20,800 INFO L130 BoogieDeclarations]: Found specification of procedure part_get_fact_prot_info [2022-11-03 02:14:20,801 INFO L138 BoogieDeclarations]: Found implementation of procedure part_get_fact_prot_info [2022-11-03 02:14:20,801 INFO L130 BoogieDeclarations]: Found specification of procedure mtdchar_mmap [2022-11-03 02:14:20,801 INFO L138 BoogieDeclarations]: Found implementation of procedure mtdchar_mmap [2022-11-03 02:14:20,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2022-11-03 02:14:20,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2022-11-03 02:14:20,802 INFO L130 BoogieDeclarations]: Found specification of procedure part_write_oob [2022-11-03 02:14:20,802 INFO L138 BoogieDeclarations]: Found implementation of procedure part_write_oob [2022-11-03 02:14:20,802 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_block_markbad [2022-11-03 02:14:20,802 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_block_markbad [2022-11-03 02:14:20,802 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2022-11-03 02:14:20,803 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2022-11-03 02:14:20,803 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_read_oob [2022-11-03 02:14:20,803 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_read_oob [2022-11-03 02:14:20,803 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-03 02:14:20,803 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_suspend [2022-11-03 02:14:20,803 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_suspend [2022-11-03 02:14:20,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:14:20,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:14:20,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:14:20,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:14:20,804 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_ecc_stats_errors_show [2022-11-03 02:14:20,804 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_ecc_stats_errors_show [2022-11-03 02:14:20,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:14:20,805 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:14:20,805 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_size_show [2022-11-03 02:14:20,805 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_size_show [2022-11-03 02:14:20,805 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 02:14:20,805 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 02:14:20,806 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-03 02:14:20,806 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-03 02:14:20,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:14:20,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:14:20,806 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_numeraseregions_show [2022-11-03 02:14:20,806 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_numeraseregions_show [2022-11-03 02:14:20,807 INFO L130 BoogieDeclarations]: Found specification of procedure put_mtd_device [2022-11-03 02:14:20,807 INFO L138 BoogieDeclarations]: Found implementation of procedure put_mtd_device [2022-11-03 02:14:20,807 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_proc_open [2022-11-03 02:14:20,807 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_proc_open [2022-11-03 02:14:20,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-03 02:14:20,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-03 02:14:20,808 INFO L130 BoogieDeclarations]: Found specification of procedure mtdchar_writeoob [2022-11-03 02:14:20,808 INFO L138 BoogieDeclarations]: Found implementation of procedure mtdchar_writeoob [2022-11-03 02:14:20,808 INFO L130 BoogieDeclarations]: Found specification of procedure class_unregister [2022-11-03 02:14:20,809 INFO L138 BoogieDeclarations]: Found implementation of procedure class_unregister [2022-11-03 02:14:20,809 INFO L130 BoogieDeclarations]: Found specification of procedure part_write_user_prot_reg [2022-11-03 02:14:20,809 INFO L138 BoogieDeclarations]: Found implementation of procedure part_write_user_prot_reg [2022-11-03 02:14:20,809 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_get_user_prot_info [2022-11-03 02:14:20,810 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_get_user_prot_info [2022-11-03 02:14:20,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2022-11-03 02:14:20,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2022-11-03 02:14:20,811 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_flags_show [2022-11-03 02:14:20,812 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_flags_show [2022-11-03 02:14:20,812 INFO L130 BoogieDeclarations]: Found specification of procedure part_read [2022-11-03 02:14:20,813 INFO L138 BoogieDeclarations]: Found implementation of procedure part_read [2022-11-03 02:14:20,813 INFO L130 BoogieDeclarations]: Found specification of procedure concat_write_oob [2022-11-03 02:14:20,813 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_write_oob [2022-11-03 02:14:20,813 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:14:20,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:14:20,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 02:14:20,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 02:14:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure vm_iomap_memory [2022-11-03 02:14:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_read_user_prot_reg [2022-11-03 02:14:20,815 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_read_user_prot_reg [2022-11-03 02:14:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure part_panic_write [2022-11-03 02:14:20,815 INFO L138 BoogieDeclarations]: Found implementation of procedure part_panic_write [2022-11-03 02:14:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_ecc_step_size_show [2022-11-03 02:14:20,816 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_ecc_step_size_show [2022-11-03 02:14:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure concat_unlock [2022-11-03 02:14:20,816 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_unlock [2022-11-03 02:14:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:14:20,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:14:20,817 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_name_show [2022-11-03 02:14:20,817 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_name_show [2022-11-03 02:14:20,818 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~loff_t~0~X~int~X~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:14:20,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~loff_t~0~X~int~X~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:14:20,818 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:14:20,818 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:14:20,818 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_bbtblocks_show [2022-11-03 02:14:20,818 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_bbtblocks_show [2022-11-03 02:14:20,819 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-03 02:14:20,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-03 02:14:20,820 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_is_bitflip_or_eccerr [2022-11-03 02:14:20,820 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_is_bitflip_or_eccerr [2022-11-03 02:14:20,820 INFO L130 BoogieDeclarations]: Found specification of procedure concat_sync [2022-11-03 02:14:20,820 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_sync [2022-11-03 02:14:20,820 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_is_locked [2022-11-03 02:14:20,820 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_is_locked [2022-11-03 02:14:20,821 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_partition_offset_show [2022-11-03 02:14:20,821 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_partition_offset_show [2022-11-03 02:14:20,822 INFO L130 BoogieDeclarations]: Found specification of procedure part_block_isreserved [2022-11-03 02:14:20,822 INFO L138 BoogieDeclarations]: Found implementation of procedure part_block_isreserved [2022-11-03 02:14:20,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:14:20,823 INFO L130 BoogieDeclarations]: Found specification of procedure mtdchar_open [2022-11-03 02:14:20,823 INFO L138 BoogieDeclarations]: Found implementation of procedure mtdchar_open [2022-11-03 02:14:20,823 INFO L130 BoogieDeclarations]: Found specification of procedure concat_write [2022-11-03 02:14:20,823 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_write [2022-11-03 02:14:20,824 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_kmalloc_up_to [2022-11-03 02:14:20,824 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_kmalloc_up_to [2022-11-03 02:14:20,824 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~loff_t~0~X~$Pointer$~TO~int [2022-11-03 02:14:20,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~loff_t~0~X~$Pointer$~TO~int [2022-11-03 02:14:20,824 INFO L130 BoogieDeclarations]: Found specification of procedure mtdchar_readoob [2022-11-03 02:14:20,825 INFO L138 BoogieDeclarations]: Found implementation of procedure mtdchar_readoob [2022-11-03 02:14:20,825 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_is_bitflip [2022-11-03 02:14:20,825 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_is_bitflip [2022-11-03 02:14:20,825 INFO L130 BoogieDeclarations]: Found specification of procedure part_is_locked [2022-11-03 02:14:20,825 INFO L138 BoogieDeclarations]: Found implementation of procedure part_is_locked [2022-11-03 02:14:20,826 INFO L130 BoogieDeclarations]: Found specification of procedure mtdchar_write [2022-11-03 02:14:20,826 INFO L138 BoogieDeclarations]: Found implementation of procedure mtdchar_write [2022-11-03 02:14:20,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:14:20,827 INFO L130 BoogieDeclarations]: Found specification of procedure get_mtd_device [2022-11-03 02:14:20,830 INFO L138 BoogieDeclarations]: Found implementation of procedure get_mtd_device [2022-11-03 02:14:20,830 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-11-03 02:14:20,830 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-11-03 02:14:20,831 INFO L130 BoogieDeclarations]: Found specification of procedure part_block_markbad [2022-11-03 02:14:20,831 INFO L138 BoogieDeclarations]: Found implementation of procedure part_block_markbad [2022-11-03 02:14:20,832 INFO L130 BoogieDeclarations]: Found specification of procedure concat_resume [2022-11-03 02:14:20,833 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_resume [2022-11-03 02:14:20,833 INFO L130 BoogieDeclarations]: Found specification of procedure mtdchar_ioctl [2022-11-03 02:14:20,833 INFO L138 BoogieDeclarations]: Found implementation of procedure mtdchar_ioctl [2022-11-03 02:14:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure part_unlock [2022-11-03 02:14:20,839 INFO L138 BoogieDeclarations]: Found implementation of procedure part_unlock [2022-11-03 02:14:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:14:20,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:14:20,840 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_read_fact_prot_reg [2022-11-03 02:14:20,840 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_read_fact_prot_reg [2022-11-03 02:14:20,840 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_sync [2022-11-03 02:14:20,840 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_sync [2022-11-03 02:14:20,840 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_ecc_stats_corrected_show [2022-11-03 02:14:20,840 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_ecc_stats_corrected_show [2022-11-03 02:14:20,840 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_div_by_ws [2022-11-03 02:14:20,841 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_div_by_ws [2022-11-03 02:14:20,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:14:20,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:14:20,841 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_unpoint [2022-11-03 02:14:20,841 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_unpoint [2022-11-03 02:14:20,841 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2022-11-03 02:14:20,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2022-11-03 02:14:20,842 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_is_eccerr [2022-11-03 02:14:20,842 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_is_eccerr [2022-11-03 02:14:20,842 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-03 02:14:20,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-03 02:14:20,842 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 02:14:20,842 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 02:14:20,842 INFO L130 BoogieDeclarations]: Found specification of procedure free_partition [2022-11-03 02:14:20,843 INFO L138 BoogieDeclarations]: Found implementation of procedure free_partition [2022-11-03 02:14:20,843 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:14:20,843 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:14:20,843 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:14:20,843 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:14:20,843 INFO L130 BoogieDeclarations]: Found specification of procedure concat_erase [2022-11-03 02:14:20,843 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_erase [2022-11-03 02:14:20,844 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_erase_callback [2022-11-03 02:14:20,844 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_erase_callback [2022-11-03 02:14:20,844 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 02:14:20,844 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 02:14:20,844 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_block_isreserved [2022-11-03 02:14:20,844 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_block_isreserved [2022-11-03 02:14:20,844 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2022-11-03 02:14:20,845 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2022-11-03 02:14:20,845 INFO L130 BoogieDeclarations]: Found specification of procedure part_read_fact_prot_reg [2022-11-03 02:14:20,845 INFO L138 BoogieDeclarations]: Found implementation of procedure part_read_fact_prot_reg [2022-11-03 02:14:20,845 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:14:20,845 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:14:20,845 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-03 02:14:20,845 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-03 02:14:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_resume [2022-11-03 02:14:20,846 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_resume [2022-11-03 02:14:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:14:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_subpagesize_show [2022-11-03 02:14:20,846 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_subpagesize_show [2022-11-03 02:14:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_cls_resume [2022-11-03 02:14:20,846 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_cls_resume [2022-11-03 02:14:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_add_partition_attrs [2022-11-03 02:14:20,847 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_add_partition_attrs [2022-11-03 02:14:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-03 02:14:20,847 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-03 02:14:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure add_mtd_device [2022-11-03 02:14:20,847 INFO L138 BoogieDeclarations]: Found implementation of procedure add_mtd_device [2022-11-03 02:14:20,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:14:20,848 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_write_oob [2022-11-03 02:14:20,848 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_write_oob [2022-11-03 02:14:20,849 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_type_show [2022-11-03 02:14:20,849 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_type_show [2022-11-03 02:14:20,850 INFO L130 BoogieDeclarations]: Found specification of procedure part_write [2022-11-03 02:14:20,850 INFO L138 BoogieDeclarations]: Found implementation of procedure part_write [2022-11-03 02:14:20,850 INFO L130 BoogieDeclarations]: Found specification of procedure concat_lock [2022-11-03 02:14:20,850 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_lock [2022-11-03 02:14:20,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:14:20,851 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 02:14:20,851 INFO L130 BoogieDeclarations]: Found specification of procedure register_mtd_user [2022-11-03 02:14:20,851 INFO L138 BoogieDeclarations]: Found implementation of procedure register_mtd_user [2022-11-03 02:14:20,851 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_oobsize_show [2022-11-03 02:14:20,851 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_oobsize_show [2022-11-03 02:14:20,851 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_lock_user_prot_reg [2022-11-03 02:14:20,852 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_lock_user_prot_reg [2022-11-03 02:14:20,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:14:20,852 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:14:20,852 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_is_partition [2022-11-03 02:14:20,852 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_is_partition [2022-11-03 02:14:20,852 INFO L130 BoogieDeclarations]: Found specification of procedure concat_block_isbad [2022-11-03 02:14:20,852 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_block_isbad [2022-11-03 02:14:20,853 INFO L130 BoogieDeclarations]: Found specification of procedure mtdchar_close [2022-11-03 02:14:20,853 INFO L138 BoogieDeclarations]: Found implementation of procedure mtdchar_close [2022-11-03 02:14:20,853 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:14:20,853 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:14:20,853 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_write [2022-11-03 02:14:20,853 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_write [2022-11-03 02:14:20,853 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_badblocks_show [2022-11-03 02:14:20,854 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_badblocks_show [2022-11-03 02:14:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure part_sync [2022-11-03 02:14:20,854 INFO L138 BoogieDeclarations]: Found implementation of procedure part_sync [2022-11-03 02:14:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure concat_suspend [2022-11-03 02:14:20,854 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_suspend [2022-11-03 02:14:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:14:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-03 02:14:20,855 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-03 02:14:20,855 INFO L130 BoogieDeclarations]: Found specification of procedure __get_mtd_device [2022-11-03 02:14:20,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_mtd_device [2022-11-03 02:14:20,855 INFO L130 BoogieDeclarations]: Found specification of procedure part_read_oob [2022-11-03 02:14:20,855 INFO L138 BoogieDeclarations]: Found implementation of procedure part_read_oob [2022-11-03 02:14:20,855 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-03 02:14:20,855 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-11-03 02:14:20,856 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2022-11-03 02:14:20,856 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2022-11-03 02:14:20,856 INFO L130 BoogieDeclarations]: Found specification of procedure kill_mtd_super [2022-11-03 02:14:20,856 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_mtd_super [2022-11-03 02:14:20,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:14:20,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:14:20,856 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-11-03 02:14:20,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-11-03 02:14:20,857 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_writesize_show [2022-11-03 02:14:20,857 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_writesize_show [2022-11-03 02:14:20,857 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_block_isbad [2022-11-03 02:14:20,857 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_block_isbad [2022-11-03 02:14:20,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 02:14:20,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 02:14:20,858 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:14:20,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:14:20,862 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-03 02:14:20,862 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-03 02:14:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:14:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 02:14:20,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 02:14:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find [2022-11-03 02:14:20,863 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find [2022-11-03 02:14:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_erase [2022-11-03 02:14:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_erase [2022-11-03 02:14:20,865 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-03 02:14:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-03 02:14:20,865 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_erasesize_show [2022-11-03 02:14:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_erasesize_show [2022-11-03 02:14:20,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:14:20,866 INFO L130 BoogieDeclarations]: Found specification of procedure concat_read [2022-11-03 02:14:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_read [2022-11-03 02:14:20,866 INFO L130 BoogieDeclarations]: Found specification of procedure concat_read_oob [2022-11-03 02:14:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_read_oob [2022-11-03 02:14:20,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:14:20,866 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:14:20,866 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_destroy [2022-11-03 02:14:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_destroy [2022-11-03 02:14:20,867 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:14:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:14:20,867 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_release [2022-11-03 02:14:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_release [2022-11-03 02:14:20,867 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-03 02:14:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-03 02:14:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:14:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:14:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 02:14:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 02:14:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_bitflip_threshold_show [2022-11-03 02:14:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_bitflip_threshold_show [2022-11-03 02:14:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure __put_mtd_device [2022-11-03 02:14:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __put_mtd_device [2022-11-03 02:14:20,869 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_mod_by_eb [2022-11-03 02:14:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_mod_by_eb [2022-11-03 02:14:20,869 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-03 02:14:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-03 02:14:20,869 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_get_fact_prot_info [2022-11-03 02:14:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_get_fact_prot_info [2022-11-03 02:14:20,869 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2022-11-03 02:14:20,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ffs [2022-11-03 02:14:20,870 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_unlock [2022-11-03 02:14:20,870 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_unlock [2022-11-03 02:14:20,870 INFO L130 BoogieDeclarations]: Found specification of procedure part_suspend [2022-11-03 02:14:20,870 INFO L138 BoogieDeclarations]: Found implementation of procedure part_suspend [2022-11-03 02:14:20,870 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-03 02:14:20,870 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-03 02:14:20,870 INFO L130 BoogieDeclarations]: Found specification of procedure part_unpoint [2022-11-03 02:14:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure part_unpoint [2022-11-03 02:14:20,871 INFO L130 BoogieDeclarations]: Found specification of procedure part_block_isbad [2022-11-03 02:14:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure part_block_isbad [2022-11-03 02:14:20,871 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_read [2022-11-03 02:14:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_read [2022-11-03 02:14:20,871 INFO L130 BoogieDeclarations]: Found specification of procedure otp_select_filemode [2022-11-03 02:14:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure otp_select_filemode [2022-11-03 02:14:20,872 INFO L130 BoogieDeclarations]: Found specification of procedure part_read_user_prot_reg [2022-11-03 02:14:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure part_read_user_prot_reg [2022-11-03 02:14:20,872 INFO L130 BoogieDeclarations]: Found specification of procedure __mtd_next_device [2022-11-03 02:14:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __mtd_next_device [2022-11-03 02:14:20,872 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_lock [2022-11-03 02:14:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_lock [2022-11-03 02:14:20,872 INFO L130 BoogieDeclarations]: Found specification of procedure del_mtd_device [2022-11-03 02:14:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure del_mtd_device [2022-11-03 02:14:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~loff_t~0~X~int~TO~int [2022-11-03 02:14:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~loff_t~0~X~int~TO~int [2022-11-03 02:14:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_partition [2022-11-03 02:14:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_partition [2022-11-03 02:14:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure part_erase [2022-11-03 02:14:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure part_erase [2022-11-03 02:14:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure concat_block_markbad [2022-11-03 02:14:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_block_markbad [2022-11-03 02:14:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure concat_dev_erase [2022-11-03 02:14:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_dev_erase [2022-11-03 02:14:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~loff_t~0~TO~int [2022-11-03 02:14:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~loff_t~0~TO~int [2022-11-03 02:14:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-11-03 02:14:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-11-03 02:14:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure part_resume [2022-11-03 02:14:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure part_resume [2022-11-03 02:14:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_cls_suspend [2022-11-03 02:14:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_cls_suspend [2022-11-03 02:14:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure part_lock_user_prot_reg [2022-11-03 02:14:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure part_lock_user_prot_reg [2022-11-03 02:14:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 02:14:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 02:14:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:14:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:14:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2022-11-03 02:14:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2022-11-03 02:14:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure part_lock [2022-11-03 02:14:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure part_lock [2022-11-03 02:14:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-03 02:14:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-03 02:14:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_panic_write [2022-11-03 02:14:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_panic_write [2022-11-03 02:14:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:14:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~loff_t~0~X~~uint64_t~0~TO~int [2022-11-03 02:14:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~loff_t~0~X~~uint64_t~0~TO~int [2022-11-03 02:14:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure part_get_user_prot_info [2022-11-03 02:14:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure part_get_user_prot_info [2022-11-03 02:14:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_write_user_prot_reg [2022-11-03 02:14:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_write_user_prot_reg [2022-11-03 02:14:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:14:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:14:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_ecc_strength_show [2022-11-03 02:14:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_ecc_strength_show [2022-11-03 02:14:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 02:14:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 02:14:22,145 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:14:22,155 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:14:22,959 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:14:38,256 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:14:40,748 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:14:40,749 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:14:40,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:14:40 BoogieIcfgContainer [2022-11-03 02:14:40,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:14:40,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:14:40,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:14:40,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:14:40,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:14:15" (1/3) ... [2022-11-03 02:14:40,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec85a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:14:40, skipping insertion in model container [2022-11-03 02:14:40,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:19" (2/3) ... [2022-11-03 02:14:40,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec85a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:14:40, skipping insertion in model container [2022-11-03 02:14:40,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:14:40" (3/3) ... [2022-11-03 02:14:40,772 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--mtd.ko-entry_point.cil.out.i [2022-11-03 02:14:40,791 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:14:40,791 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:14:40,926 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:14:40,933 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;@44795168, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:14:40,933 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:14:40,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 2232 states, 1455 states have (on average 1.3993127147766322) internal successors, (2036), 1506 states have internal predecessors, (2036), 611 states have call successors, (611), 165 states have call predecessors, (611), 164 states have return successors, (588), 577 states have call predecessors, (588), 588 states have call successors, (588) [2022-11-03 02:14:40,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2022-11-03 02:14:40,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:14:41,000 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 50, 50, 50, 50, 50, 50, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:41,001 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:14:41,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:14:41,008 INFO L85 PathProgramCache]: Analyzing trace with hash -2116761983, now seen corresponding path program 1 times [2022-11-03 02:14:41,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:14:41,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009208109] [2022-11-03 02:14:41,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:14:41,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:14:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:14:43,481 INFO L134 CoverageAnalysis]: Checked inductivity of 12292 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12292 trivial. 0 not checked. [2022-11-03 02:14:43,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:14:43,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009208109] [2022-11-03 02:14:43,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009208109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:14:43,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:14:43,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:14:43,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900848610] [2022-11-03 02:14:43,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:14:43,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:14:43,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:14:43,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:14:43,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:14:43,538 INFO L87 Difference]: Start difference. First operand has 2232 states, 1455 states have (on average 1.3993127147766322) internal successors, (2036), 1506 states have internal predecessors, (2036), 611 states have call successors, (611), 165 states have call predecessors, (611), 164 states have return successors, (588), 577 states have call predecessors, (588), 588 states have call successors, (588) Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-03 02:14:45,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:14:50,035 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 02:14:50,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:14:50,311 INFO L93 Difference]: Finished difference Result 6390 states and 9461 transitions. [2022-11-03 02:14:50,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:14:50,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 658 [2022-11-03 02:14:50,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:14:50,365 INFO L225 Difference]: With dead ends: 6390 [2022-11-03 02:14:50,366 INFO L226 Difference]: Without dead ends: 4201 [2022-11-03 02:14:50,381 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 02:14:50,384 INFO L413 NwaCegarLoop]: 4881 mSDtfsCounter, 2986 mSDsluCounter, 3114 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2987 SdHoareTripleChecker+Valid, 7691 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:14:50,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2987 Valid, 7691 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 807 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-11-03 02:14:50,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4201 states. [2022-11-03 02:14:50,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4201 to 4188. [2022-11-03 02:14:50,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4188 states, 2769 states have (on average 1.3875045142650777) internal successors, (3842), 2820 states have internal predecessors, (3842), 1097 states have call successors, (1097), 323 states have call predecessors, (1097), 321 states have return successors, (1156), 1071 states have call predecessors, (1156), 1095 states have call successors, (1156) [2022-11-03 02:14:50,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4188 states to 4188 states and 6095 transitions. [2022-11-03 02:14:50,705 INFO L78 Accepts]: Start accepts. Automaton has 4188 states and 6095 transitions. Word has length 658 [2022-11-03 02:14:50,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:14:50,708 INFO L495 AbstractCegarLoop]: Abstraction has 4188 states and 6095 transitions. [2022-11-03 02:14:50,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-03 02:14:50,714 INFO L276 IsEmpty]: Start isEmpty. Operand 4188 states and 6095 transitions. [2022-11-03 02:14:50,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2022-11-03 02:14:50,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:14:50,743 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 50, 50, 50, 50, 50, 50, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:50,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:14:50,743 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:14:50,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:14:50,744 INFO L85 PathProgramCache]: Analyzing trace with hash -26075436, now seen corresponding path program 1 times [2022-11-03 02:14:50,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:14:50,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309828934] [2022-11-03 02:14:50,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:14:50,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:14:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:14:51,975 INFO L134 CoverageAnalysis]: Checked inductivity of 12292 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12292 trivial. 0 not checked. [2022-11-03 02:14:51,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:14:51,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309828934] [2022-11-03 02:14:51,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309828934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:14:51,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:14:51,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:14:51,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959770096] [2022-11-03 02:14:51,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:14:51,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:14:51,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:14:51,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:14:51,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:14:51,987 INFO L87 Difference]: Start difference. First operand 4188 states and 6095 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-03 02:14:53,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:14:56,870 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 02:14:57,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:14:57,742 INFO L93 Difference]: Finished difference Result 12141 states and 17617 transitions. [2022-11-03 02:14:57,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:14:57,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 673 [2022-11-03 02:14:57,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:14:57,801 INFO L225 Difference]: With dead ends: 12141 [2022-11-03 02:14:57,801 INFO L226 Difference]: Without dead ends: 8062 [2022-11-03 02:14:57,822 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 02:14:57,823 INFO L413 NwaCegarLoop]: 3668 mSDtfsCounter, 3023 mSDsluCounter, 2962 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3024 SdHoareTripleChecker+Valid, 6345 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:14:57,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3024 Valid, 6345 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 676 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-03 02:14:57,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8062 states. [2022-11-03 02:14:58,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8062 to 8052. [2022-11-03 02:14:58,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8052 states, 5323 states have (on average 1.3873755401089611) internal successors, (7385), 5425 states have internal predecessors, (7385), 2093 states have call successors, (2093), 638 states have call predecessors, (2093), 635 states have return successors, (2196), 2040 states have call predecessors, (2196), 2091 states have call successors, (2196) [2022-11-03 02:14:58,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8052 states to 8052 states and 11674 transitions. [2022-11-03 02:14:58,213 INFO L78 Accepts]: Start accepts. Automaton has 8052 states and 11674 transitions. Word has length 673 [2022-11-03 02:14:58,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:14:58,216 INFO L495 AbstractCegarLoop]: Abstraction has 8052 states and 11674 transitions. [2022-11-03 02:14:58,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-03 02:14:58,217 INFO L276 IsEmpty]: Start isEmpty. Operand 8052 states and 11674 transitions. [2022-11-03 02:14:58,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 775 [2022-11-03 02:14:58,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:14:58,242 INFO L195 NwaCegarLoop]: trace histogram [57, 57, 57, 57, 57, 57, 57, 57, 57, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 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 02:14:58,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:14:58,242 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:14:58,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:14:58,252 INFO L85 PathProgramCache]: Analyzing trace with hash -658520507, now seen corresponding path program 1 times [2022-11-03 02:14:58,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:14:58,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443589559] [2022-11-03 02:14:58,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:14:58,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:14:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:14:59,944 INFO L134 CoverageAnalysis]: Checked inductivity of 16005 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 16002 trivial. 0 not checked. [2022-11-03 02:14:59,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:14:59,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443589559] [2022-11-03 02:14:59,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443589559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:14:59,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:14:59,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:14:59,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919655907] [2022-11-03 02:14:59,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:14:59,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:14:59,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:14:59,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:14:59,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:14:59,948 INFO L87 Difference]: Start difference. First operand 8052 states and 11674 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2022-11-03 02:15:02,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:05,582 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 02:15:06,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:06,792 INFO L93 Difference]: Finished difference Result 19925 states and 28883 transitions. [2022-11-03 02:15:06,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:15:06,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) Word has length 774 [2022-11-03 02:15:06,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:06,866 INFO L225 Difference]: With dead ends: 19925 [2022-11-03 02:15:06,866 INFO L226 Difference]: Without dead ends: 11982 [2022-11-03 02:15:06,901 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 02:15:06,902 INFO L413 NwaCegarLoop]: 5439 mSDtfsCounter, 2894 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2895 SdHoareTripleChecker+Valid, 8274 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:06,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2895 Valid, 8274 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 906 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-11-03 02:15:06,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11982 states. [2022-11-03 02:15:07,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11982 to 11972. [2022-11-03 02:15:07,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11972 states, 7933 states have (on average 1.3896382200932813) internal successors, (11024), 8086 states have internal predecessors, (11024), 3089 states have call successors, (3089), 953 states have call predecessors, (3089), 949 states have return successors, (3236), 3009 states have call predecessors, (3236), 3087 states have call successors, (3236) [2022-11-03 02:15:07,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11972 states to 11972 states and 17349 transitions. [2022-11-03 02:15:07,451 INFO L78 Accepts]: Start accepts. Automaton has 11972 states and 17349 transitions. Word has length 774 [2022-11-03 02:15:07,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:07,453 INFO L495 AbstractCegarLoop]: Abstraction has 11972 states and 17349 transitions. [2022-11-03 02:15:07,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2022-11-03 02:15:07,453 INFO L276 IsEmpty]: Start isEmpty. Operand 11972 states and 17349 transitions. [2022-11-03 02:15:07,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2022-11-03 02:15:07,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:07,482 INFO L195 NwaCegarLoop]: trace histogram [55, 55, 55, 55, 55, 55, 55, 55, 55, 12, 12, 12, 12, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:07,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:15:07,483 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:07,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:07,484 INFO L85 PathProgramCache]: Analyzing trace with hash 649926760, now seen corresponding path program 1 times [2022-11-03 02:15:07,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:07,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92737653] [2022-11-03 02:15:07,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:07,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:07,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:08,644 INFO L134 CoverageAnalysis]: Checked inductivity of 15314 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15314 trivial. 0 not checked. [2022-11-03 02:15:08,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:08,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92737653] [2022-11-03 02:15:08,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92737653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:08,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:08,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:15:08,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512183772] [2022-11-03 02:15:08,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:08,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:15:08,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:08,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:15:08,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:08,648 INFO L87 Difference]: Start difference. First operand 11972 states and 17349 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) [2022-11-03 02:15:09,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:13,691 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 02:15:13,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:13,949 INFO L93 Difference]: Finished difference Result 26488 states and 38292 transitions. [2022-11-03 02:15:13,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:15:13,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) Word has length 811 [2022-11-03 02:15:13,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:14,040 INFO L225 Difference]: With dead ends: 26488 [2022-11-03 02:15:14,040 INFO L226 Difference]: Without dead ends: 14625 [2022-11-03 02:15:14,095 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 02:15:14,096 INFO L413 NwaCegarLoop]: 3348 mSDtfsCounter, 1107 mSDsluCounter, 2966 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 6013 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:14,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 6013 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 708 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-03 02:15:14,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14625 states. [2022-11-03 02:15:14,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14625 to 14611. [2022-11-03 02:15:14,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14611 states, 9791 states have (on average 1.3970993769788582) internal successors, (13679), 9998 states have internal predecessors, (13679), 3612 states have call successors, (3612), 1212 states have call predecessors, (3612), 1207 states have return successors, (3796), 3504 states have call predecessors, (3796), 3610 states have call successors, (3796) [2022-11-03 02:15:14,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14611 states to 14611 states and 21087 transitions. [2022-11-03 02:15:14,877 INFO L78 Accepts]: Start accepts. Automaton has 14611 states and 21087 transitions. Word has length 811 [2022-11-03 02:15:14,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:14,878 INFO L495 AbstractCegarLoop]: Abstraction has 14611 states and 21087 transitions. [2022-11-03 02:15:14,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) [2022-11-03 02:15:14,878 INFO L276 IsEmpty]: Start isEmpty. Operand 14611 states and 21087 transitions. [2022-11-03 02:15:14,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2022-11-03 02:15:14,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:14,892 INFO L195 NwaCegarLoop]: trace histogram [57, 57, 57, 57, 57, 57, 57, 57, 57, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:14,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:15:14,892 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:14,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:14,893 INFO L85 PathProgramCache]: Analyzing trace with hash -2137764779, now seen corresponding path program 1 times [2022-11-03 02:15:14,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:14,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503736530] [2022-11-03 02:15:14,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:14,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:18,620 INFO L134 CoverageAnalysis]: Checked inductivity of 16015 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 16000 trivial. 0 not checked. [2022-11-03 02:15:18,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:18,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503736530] [2022-11-03 02:15:18,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503736530] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:15:18,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879438080] [2022-11-03 02:15:18,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:18,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:15:18,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:15:18,629 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:15:18,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:15:21,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:21,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 10692 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:15:21,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:15:21,840 INFO L134 CoverageAnalysis]: Checked inductivity of 16015 backedges. 3506 proven. 0 refuted. 0 times theorem prover too weak. 12509 trivial. 0 not checked. [2022-11-03 02:15:21,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:15:21,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879438080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:21,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:15:21,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2022-11-03 02:15:21,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297226602] [2022-11-03 02:15:21,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:21,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:15:21,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:21,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:15:21,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:15:21,844 INFO L87 Difference]: Start difference. First operand 14611 states and 21087 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-11-03 02:15:28,802 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 02:15:29,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:29,361 INFO L93 Difference]: Finished difference Result 43465 states and 62695 transitions. [2022-11-03 02:15:29,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:15:29,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 791 [2022-11-03 02:15:29,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:29,520 INFO L225 Difference]: With dead ends: 43465 [2022-11-03 02:15:29,521 INFO L226 Difference]: Without dead ends: 28856 [2022-11-03 02:15:29,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 799 GetRequests, 789 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:15:29,587 INFO L413 NwaCegarLoop]: 5455 mSDtfsCounter, 2929 mSDsluCounter, 15235 mSDsCounter, 0 mSdLazyCounter, 2118 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2932 SdHoareTripleChecker+Valid, 19201 SdHoareTripleChecker+Invalid, 2128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2118 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:29,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2932 Valid, 19201 Invalid, 2128 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2118 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-11-03 02:15:29,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28856 states. [2022-11-03 02:15:30,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28856 to 28794. [2022-11-03 02:15:30,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28794 states, 19331 states have (on average 1.398168744503647) internal successors, (27028), 19717 states have internal predecessors, (27028), 7075 states have call successors, (7075), 2396 states have call predecessors, (7075), 2387 states have return successors, (7446), 6853 states have call predecessors, (7446), 7073 states have call successors, (7446) [2022-11-03 02:15:30,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28794 states to 28794 states and 41549 transitions. [2022-11-03 02:15:30,966 INFO L78 Accepts]: Start accepts. Automaton has 28794 states and 41549 transitions. Word has length 791 [2022-11-03 02:15:30,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:30,968 INFO L495 AbstractCegarLoop]: Abstraction has 28794 states and 41549 transitions. [2022-11-03 02:15:30,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-11-03 02:15:30,968 INFO L276 IsEmpty]: Start isEmpty. Operand 28794 states and 41549 transitions. [2022-11-03 02:15:30,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2022-11-03 02:15:30,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:30,982 INFO L195 NwaCegarLoop]: trace histogram [57, 57, 57, 57, 57, 57, 57, 57, 57, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:31,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:15:31,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:15:31,198 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:31,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:31,198 INFO L85 PathProgramCache]: Analyzing trace with hash 511714010, now seen corresponding path program 1 times [2022-11-03 02:15:31,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:31,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068029983] [2022-11-03 02:15:31,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:31,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:35,037 INFO L134 CoverageAnalysis]: Checked inductivity of 16015 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 16000 trivial. 0 not checked. [2022-11-03 02:15:35,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:35,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068029983] [2022-11-03 02:15:35,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068029983] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:15:35,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458556392] [2022-11-03 02:15:35,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:35,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:15:35,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:15:35,040 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:15:35,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:15:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:41,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 10871 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 02:15:41,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:15:41,181 INFO L134 CoverageAnalysis]: Checked inductivity of 16015 backedges. 3533 proven. 0 refuted. 0 times theorem prover too weak. 12482 trivial. 0 not checked. [2022-11-03 02:15:41,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:15:41,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458556392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:41,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:15:41,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2022-11-03 02:15:41,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360401947] [2022-11-03 02:15:41,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:41,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:15:41,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:41,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:15:41,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:15:41,184 INFO L87 Difference]: Start difference. First operand 28794 states and 41549 transitions. Second operand has 6 states, 4 states have (on average 36.0) internal successors, (144), 6 states have internal predecessors, (144), 3 states have call successors, (76), 2 states have call predecessors, (76), 4 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2022-11-03 02:15:43,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:48,467 WARN L539 Checker$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 02:15:48,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:48,964 INFO L93 Difference]: Finished difference Result 57538 states and 83145 transitions. [2022-11-03 02:15:48,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:15:48,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 36.0) internal successors, (144), 6 states have internal predecessors, (144), 3 states have call successors, (76), 2 states have call predecessors, (76), 4 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) Word has length 800 [2022-11-03 02:15:48,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:49,117 INFO L225 Difference]: With dead ends: 57538 [2022-11-03 02:15:49,117 INFO L226 Difference]: Without dead ends: 28807 [2022-11-03 02:15:49,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 799 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:15:49,226 INFO L413 NwaCegarLoop]: 2838 mSDtfsCounter, 3 mSDsluCounter, 12542 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 14157 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:49,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 14157 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1634 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-11-03 02:15:49,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28807 states. [2022-11-03 02:15:50,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28807 to 28807. [2022-11-03 02:15:50,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28807 states, 19344 states have (on average 1.397901157981803) internal successors, (27041), 19730 states have internal predecessors, (27041), 7075 states have call successors, (7075), 2396 states have call predecessors, (7075), 2387 states have return successors, (7446), 6853 states have call predecessors, (7446), 7073 states have call successors, (7446) [2022-11-03 02:15:50,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28807 states to 28807 states and 41562 transitions. [2022-11-03 02:15:50,526 INFO L78 Accepts]: Start accepts. Automaton has 28807 states and 41562 transitions. Word has length 800 [2022-11-03 02:15:50,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:50,527 INFO L495 AbstractCegarLoop]: Abstraction has 28807 states and 41562 transitions. [2022-11-03 02:15:50,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 36.0) internal successors, (144), 6 states have internal predecessors, (144), 3 states have call successors, (76), 2 states have call predecessors, (76), 4 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2022-11-03 02:15:50,527 INFO L276 IsEmpty]: Start isEmpty. Operand 28807 states and 41562 transitions. [2022-11-03 02:15:50,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2022-11-03 02:15:50,540 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:50,541 INFO L195 NwaCegarLoop]: trace histogram [57, 57, 57, 57, 57, 57, 57, 57, 57, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:50,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:15:50,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:15:50,754 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:50,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:50,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1706468736, now seen corresponding path program 1 times [2022-11-03 02:15:50,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:50,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44894218] [2022-11-03 02:15:50,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:50,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:54,583 INFO L134 CoverageAnalysis]: Checked inductivity of 16038 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 16013 trivial. 0 not checked. [2022-11-03 02:15:54,583 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:54,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44894218] [2022-11-03 02:15:54,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44894218] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:15:54,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755062204] [2022-11-03 02:15:54,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:54,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:15:54,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:15:54,585 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:15:54,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d93ca7f-7ed6-48eb-baf0-74b9266431f6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:16:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:00,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 10933 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-03 02:16:00,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:16:00,231 INFO L134 CoverageAnalysis]: Checked inductivity of 16038 backedges. 3546 proven. 3 refuted. 0 times theorem prover too weak. 12489 trivial. 0 not checked. [2022-11-03 02:16:00,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:16:01,488 INFO L134 CoverageAnalysis]: Checked inductivity of 16038 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 16013 trivial. 0 not checked. [2022-11-03 02:16:01,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755062204] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:16:01,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1321356307] [2022-11-03 02:16:01,519 INFO L159 IcfgInterpreter]: Started Sifa with 210 locations of interest [2022-11-03 02:16:01,519 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:16:01,524 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:16:01,529 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:16:01,530 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:16:48,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:16:49,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:16:50,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:16:50,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:16:52,126 INFO L244 Elim1Store]: Index analysis took 3354 ms