./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--w83627hf.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d712da8f-87a9-4d62-9050-88b1971c9f49/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d712da8f-87a9-4d62-9050-88b1971c9f49/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d712da8f-87a9-4d62-9050-88b1971c9f49/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d712da8f-87a9-4d62-9050-88b1971c9f49/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--w83627hf.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d712da8f-87a9-4d62-9050-88b1971c9f49/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d712da8f-87a9-4d62-9050-88b1971c9f49/bin/utaipan-Q6hlc19bkW --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 d9097294034e60f68c5e476784c89e8f8da996f2e52e4b71dc31d0ac6cb0fc49 --- 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-4e7fbc6 [2022-11-23 15:49:27,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:49:27,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:49:27,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:49:27,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:49:27,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:49:27,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:49:27,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:49:27,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:49:27,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:49:27,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:49:27,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:49:27,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:49:27,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:49:27,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:49:27,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:49:27,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:49:27,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:49:27,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:49:27,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:49:27,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:49:27,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:49:27,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:49:27,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:49:27,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:49:27,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:49:27,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:49:27,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:49:27,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:49:27,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:49:27,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:49:27,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:49:27,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:49:27,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:49:27,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:49:27,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:49:27,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:49:27,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:49:27,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:49:27,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:49:27,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:49:27,971 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d712da8f-87a9-4d62-9050-88b1971c9f49/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:49:28,020 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:49:28,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:49:28,022 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:49:28,022 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:49:28,023 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:49:28,023 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:49:28,024 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:49:28,024 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:49:28,024 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:49:28,025 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:49:28,026 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:49:28,026 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:49:28,027 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:49:28,027 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:49:28,027 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:49:28,028 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:49:28,028 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:49:28,028 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:49:28,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:49:28,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:49:28,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:49:28,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:49:28,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:49:28,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:49:28,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:49:28,031 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:49:28,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:49:28,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:49:28,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:49:28,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:49:28,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:49:28,034 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:49:28,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:49:28,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:49:28,035 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:49:28,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:49:28,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:49:28,036 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:49:28,036 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_d712da8f-87a9-4d62-9050-88b1971c9f49/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d712da8f-87a9-4d62-9050-88b1971c9f49/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9097294034e60f68c5e476784c89e8f8da996f2e52e4b71dc31d0ac6cb0fc49 [2022-11-23 15:49:28,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:49:28,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:49:28,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:49:28,476 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:49:28,476 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:49:28,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d712da8f-87a9-4d62-9050-88b1971c9f49/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--w83627hf.ko-entry_point.cil.out.i [2022-11-23 15:49:31,538 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:49:32,249 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:49:32,250 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d712da8f-87a9-4d62-9050-88b1971c9f49/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--w83627hf.ko-entry_point.cil.out.i [2022-11-23 15:49:32,328 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d712da8f-87a9-4d62-9050-88b1971c9f49/bin/utaipan-Q6hlc19bkW/data/13652fec0/4ea9e58dbdd4406eb0c3ee5843f92c45/FLAG483321978 [2022-11-23 15:49:32,351 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d712da8f-87a9-4d62-9050-88b1971c9f49/bin/utaipan-Q6hlc19bkW/data/13652fec0/4ea9e58dbdd4406eb0c3ee5843f92c45 [2022-11-23 15:49:32,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:49:32,356 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:49:32,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:49:32,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:49:32,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:49:32,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:32" (1/1) ... [2022-11-23 15:49:32,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a4e474c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:32, skipping insertion in model container [2022-11-23 15:49:32,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:32" (1/1) ... [2022-11-23 15:49:32,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:49:32,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:49:34,857 WARN L237 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_d712da8f-87a9-4d62-9050-88b1971c9f49/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--w83627hf.ko-entry_point.cil.out.i[345917,345930] [2022-11-23 15:49:35,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:49:35,322 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:49:35,787 WARN L237 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_d712da8f-87a9-4d62-9050-88b1971c9f49/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--w83627hf.ko-entry_point.cil.out.i[345917,345930] [2022-11-23 15:49:35,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:49:36,226 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:49:36,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36 WrapperNode [2022-11-23 15:49:36,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:49:36,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:49:36,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:49:36,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:49:36,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2022-11-23 15:49:36,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2022-11-23 15:49:36,710 INFO L138 Inliner]: procedures = 337, calls = 4141, calls flagged for inlining = 168, calls inlined = 162, statements flattened = 11176 [2022-11-23 15:49:36,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:49:36,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:49:36,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:49:36,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:49:36,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2022-11-23 15:49:36,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2022-11-23 15:49:36,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2022-11-23 15:49:36,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2022-11-23 15:49:36,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2022-11-23 15:49:36,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2022-11-23 15:49:37,175 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2022-11-23 15:49:37,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2022-11-23 15:49:37,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:49:37,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:49:37,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:49:37,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:49:37,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2022-11-23 15:49:37,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:49:37,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d712da8f-87a9-4d62-9050-88b1971c9f49/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:49:37,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d712da8f-87a9-4d62-9050-88b1971c9f49/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:49:37,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d712da8f-87a9-4d62-9050-88b1971c9f49/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:49:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure store_temp_type [2022-11-23 15:49:37,365 INFO L138 BoogieDeclarations]: Found implementation of procedure store_temp_type [2022-11-23 15:49:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-11-23 15:49:37,366 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-11-23 15:49:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_max [2022-11-23 15:49:37,366 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_max [2022-11-23 15:49:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:49:37,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:49:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_probe [2022-11-23 15:49:37,367 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_probe [2022-11-23 15:49:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 15:49:37,367 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 15:49:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_TO_REG [2022-11-23 15:49:37,368 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_TO_REG [2022-11-23 15:49:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure store_beep [2022-11-23 15:49:37,368 INFO L138 BoogieDeclarations]: Found implementation of procedure store_beep [2022-11-23 15:49:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_update_device [2022-11-23 15:49:37,368 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_update_device [2022-11-23 15:49:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:49:37,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:49:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure store_pwm [2022-11-23 15:49:37,369 INFO L138 BoogieDeclarations]: Found implementation of procedure store_pwm [2022-11-23 15:49:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure store_in_min [2022-11-23 15:49:37,369 INFO L138 BoogieDeclarations]: Found implementation of procedure store_in_min [2022-11-23 15:49:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_remove [2022-11-23 15:49:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_remove [2022-11-23 15:49:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2022-11-23 15:49:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2022-11-23 15:49:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure store_fan_div [2022-11-23 15:49:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure store_fan_div [2022-11-23 15:49:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_FROM_REG [2022-11-23 15:49:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_FROM_REG [2022-11-23 15:49:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_w83627hf_data [2022-11-23 15:49:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_w83627hf_data [2022-11-23 15:49:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 15:49:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 15:49:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 15:49:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 15:49:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure superio_select [2022-11-23 15:49:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_select [2022-11-23 15:49:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-11-23 15:49:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-11-23 15:49:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure store_pwm_freq [2022-11-23 15:49:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure store_pwm_freq [2022-11-23 15:49:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 15:49:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 15:49:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure TEMP_TO_REG [2022-11-23 15:49:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure TEMP_TO_REG [2022-11-23 15:49:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inb [2022-11-23 15:49:37,377 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inb [2022-11-23 15:49:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_resume [2022-11-23 15:49:37,377 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_resume [2022-11-23 15:49:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-23 15:49:37,378 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-23 15:49:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure show_pwm_freq [2022-11-23 15:49:37,378 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pwm_freq [2022-11-23 15:49:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_suspend [2022-11-23 15:49:37,378 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_suspend [2022-11-23 15:49:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_reset_bank [2022-11-23 15:49:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_reset_bank [2022-11-23 15:49:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_min [2022-11-23 15:49:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_min [2022-11-23 15:49:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:49:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2022-11-23 15:49:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2022-11-23 15:49:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure store_temp_max_hyst [2022-11-23 15:49:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure store_temp_max_hyst [2022-11-23 15:49:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2022-11-23 15:49:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2022-11-23 15:49:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_w83627hf_data [2022-11-23 15:49:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_w83627hf_data [2022-11-23 15:49:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_find [2022-11-23 15:49:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_find [2022-11-23 15:49:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:49:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 15:49:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 15:49:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure show_beep [2022-11-23 15:49:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure show_beep [2022-11-23 15:49:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2022-11-23 15:49:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2022-11-23 15:49:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:49:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:49:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_input [2022-11-23 15:49:37,386 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_input [2022-11-23 15:49:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-23 15:49:37,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-23 15:49:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure show_pwm [2022-11-23 15:49:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pwm [2022-11-23 15:49:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure show_pwm_enable [2022-11-23 15:49:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pwm_enable [2022-11-23 15:49:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_type [2022-11-23 15:49:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_type [2022-11-23 15:49:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-23 15:49:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-23 15:49:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure store_pwm_enable [2022-11-23 15:49:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure store_pwm_enable [2022-11-23 15:49:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-23 15:49:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-23 15:49:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure store_in_max [2022-11-23 15:49:37,390 INFO L138 BoogieDeclarations]: Found implementation of procedure store_in_max [2022-11-23 15:49:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_0 [2022-11-23 15:49:37,390 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_0 [2022-11-23 15:49:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_w83627hf_data [2022-11-23 15:49:37,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_w83627hf_data [2022-11-23 15:49:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:49:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-23 15:49:37,391 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-23 15:49:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_input [2022-11-23 15:49:37,391 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_input [2022-11-23 15:49:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure superio_exit [2022-11-23 15:49:37,393 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_exit [2022-11-23 15:49:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_update_fan_div [2022-11-23 15:49:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_update_fan_div [2022-11-23 15:49:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_w83627hf_data [2022-11-23 15:49:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_w83627hf_data [2022-11-23 15:49:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_div [2022-11-23 15:49:37,399 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_div [2022-11-23 15:49:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_TO_REG [2022-11-23 15:49:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_TO_REG [2022-11-23 15:49:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:49:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp [2022-11-23 15:49:37,405 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp [2022-11-23 15:49:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:49:37,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:49:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure store_temp_max [2022-11-23 15:49:37,406 INFO L138 BoogieDeclarations]: Found implementation of procedure store_temp_max [2022-11-23 15:49:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_write_value [2022-11-23 15:49:37,406 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_write_value [2022-11-23 15:49:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure superio_enter [2022-11-23 15:49:37,406 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_enter [2022-11-23 15:49:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-23 15:49:37,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-23 15:49:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:49:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-11-23 15:49:37,407 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-11-23 15:49:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_set_bank [2022-11-23 15:49:37,407 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_set_bank [2022-11-23 15:49:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_min [2022-11-23 15:49:37,407 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_min [2022-11-23 15:49:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-23 15:49:37,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-23 15:49:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:49:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure store_fan_min [2022-11-23 15:49:37,408 INFO L138 BoogieDeclarations]: Found implementation of procedure store_fan_min [2022-11-23 15:49:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:49:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max [2022-11-23 15:49:37,409 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max [2022-11-23 15:49:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max_hyst [2022-11-23 15:49:37,409 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max_hyst [2022-11-23 15:49:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-11-23 15:49:37,409 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-11-23 15:49:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-11-23 15:49:37,410 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-11-23 15:49:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2022-11-23 15:49:37,410 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2022-11-23 15:49:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_read_value [2022-11-23 15:49:37,410 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_read_value [2022-11-23 15:49:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-23 15:49:37,411 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-23 15:49:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure TEMP_FROM_REG [2022-11-23 15:49:37,411 INFO L138 BoogieDeclarations]: Found implementation of procedure TEMP_FROM_REG [2022-11-23 15:49:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:49:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:49:37,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:49:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-23 15:49:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-23 15:49:38,868 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:49:38,872 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:49:39,503 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:49:52,497 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:49:53,944 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:49:53,945 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:49:53,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:49:53 BoogieIcfgContainer [2022-11-23 15:49:53,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:49:53,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:49:53,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:49:53,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:49:53,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:49:32" (1/3) ... [2022-11-23 15:49:53,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee32215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:49:53, skipping insertion in model container [2022-11-23 15:49:53,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (2/3) ... [2022-11-23 15:49:53,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee32215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:49:53, skipping insertion in model container [2022-11-23 15:49:53,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:49:53" (3/3) ... [2022-11-23 15:49:53,965 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--w83627hf.ko-entry_point.cil.out.i [2022-11-23 15:49:53,987 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:49:53,987 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:49:54,134 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:49:54,145 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;@5d68a60d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:49:54,146 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:49:54,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 2935 states, 1851 states have (on average 1.4149108589951378) internal successors, (2619), 1958 states have internal predecessors, (2619), 1006 states have call successors, (1006), 77 states have call predecessors, (1006), 76 states have return successors, (909), 909 states have call predecessors, (909), 909 states have call successors, (909) [2022-11-23 15:49:54,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2950 [2022-11-23 15:49:54,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:49:54,339 INFO L195 NwaCegarLoop]: trace histogram [219, 219, 219, 219, 219, 219, 219, 219, 219, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:49:54,340 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:49:54,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:49:54,346 INFO L85 PathProgramCache]: Analyzing trace with hash -69178490, now seen corresponding path program 1 times [2022-11-23 15:49:54,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:49:54,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601898086] [2022-11-23 15:49:54,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:49:54,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:49:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:50:07,076 INFO L134 CoverageAnalysis]: Checked inductivity of 244020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244020 trivial. 0 not checked. [2022-11-23 15:50:07,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:50:07,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601898086] [2022-11-23 15:50:07,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601898086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:50:07,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:50:07,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:50:07,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970583682] [2022-11-23 15:50:07,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:50:07,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:50:07,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:50:07,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:50:07,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:50:07,145 INFO L87 Difference]: Start difference. First operand has 2935 states, 1851 states have (on average 1.4149108589951378) internal successors, (2619), 1958 states have internal predecessors, (2619), 1006 states have call successors, (1006), 77 states have call predecessors, (1006), 76 states have return successors, (909), 909 states have call predecessors, (909), 909 states have call successors, (909) Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-23 15:50:09,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:50:11,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:50:13,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:50:13,763 INFO L93 Difference]: Finished difference Result 7663 states and 12480 transitions. [2022-11-23 15:50:13,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:50:13,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) Word has length 2949 [2022-11-23 15:50:13,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:50:13,824 INFO L225 Difference]: With dead ends: 7663 [2022-11-23 15:50:13,825 INFO L226 Difference]: Without dead ends: 5092 [2022-11-23 15:50:13,852 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 [2022-11-23 15:50:13,855 INFO L413 NwaCegarLoop]: 4932 mSDtfsCounter, 3653 mSDsluCounter, 4307 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3653 SdHoareTripleChecker+Valid, 9239 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:50:13,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3653 Valid, 9239 Invalid, 429 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 426 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-11-23 15:50:13,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5092 states. [2022-11-23 15:50:14,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5092 to 5073. [2022-11-23 15:50:14,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5073 states, 3398 states have (on average 1.3914067098293113) internal successors, (4728), 3408 states have internal predecessors, (4728), 1525 states have call successors, (1525), 150 states have call predecessors, (1525), 149 states have return successors, (1516), 1514 states have call predecessors, (1516), 1516 states have call successors, (1516) [2022-11-23 15:50:14,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5073 states to 5073 states and 7769 transitions. [2022-11-23 15:50:14,626 INFO L78 Accepts]: Start accepts. Automaton has 5073 states and 7769 transitions. Word has length 2949 [2022-11-23 15:50:14,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:50:14,636 INFO L495 AbstractCegarLoop]: Abstraction has 5073 states and 7769 transitions. [2022-11-23 15:50:14,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-23 15:50:14,637 INFO L276 IsEmpty]: Start isEmpty. Operand 5073 states and 7769 transitions. [2022-11-23 15:50:15,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2947 [2022-11-23 15:50:15,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:50:15,082 INFO L195 NwaCegarLoop]: trace histogram [219, 219, 219, 219, 219, 219, 219, 219, 219, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:50:15,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:50:15,088 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:50:15,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:50:15,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1101917117, now seen corresponding path program 1 times [2022-11-23 15:50:15,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:50:15,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044471176] [2022-11-23 15:50:15,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:50:15,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:50:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:50:23,230 INFO L134 CoverageAnalysis]: Checked inductivity of 244020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244020 trivial. 0 not checked. [2022-11-23 15:50:23,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:50:23,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044471176] [2022-11-23 15:50:23,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044471176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:50:23,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:50:23,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:50:23,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503751608] [2022-11-23 15:50:23,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:50:23,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:50:23,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:50:23,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:50:23,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:50:23,238 INFO L87 Difference]: Start difference. First operand 5073 states and 7769 transitions. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 2 states have call successors, (285), 2 states have call predecessors, (285), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-23 15:50:25,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:50:28,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:50:28,475 INFO L93 Difference]: Finished difference Result 14039 states and 21537 transitions. [2022-11-23 15:50:28,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:50:28,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 2 states have call successors, (285), 2 states have call predecessors, (285), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) Word has length 2946 [2022-11-23 15:50:28,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:50:28,545 INFO L225 Difference]: With dead ends: 14039 [2022-11-23 15:50:28,545 INFO L226 Difference]: Without dead ends: 9528 [2022-11-23 15:50:28,573 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 [2022-11-23 15:50:28,575 INFO L413 NwaCegarLoop]: 4738 mSDtfsCounter, 3435 mSDsluCounter, 4109 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3435 SdHoareTripleChecker+Valid, 8847 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:50:28,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3435 Valid, 8847 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 428 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-23 15:50:28,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9528 states. [2022-11-23 15:50:29,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9528 to 9509. [2022-11-23 15:50:29,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9509 states, 6471 states have (on average 1.4084376448771443) internal successors, (9114), 6485 states have internal predecessors, (9114), 2740 states have call successors, (2740), 298 states have call predecessors, (2740), 297 states have return successors, (2731), 2725 states have call predecessors, (2731), 2731 states have call successors, (2731) [2022-11-23 15:50:29,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9509 states to 9509 states and 14585 transitions. [2022-11-23 15:50:29,334 INFO L78 Accepts]: Start accepts. Automaton has 9509 states and 14585 transitions. Word has length 2946 [2022-11-23 15:50:29,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:50:29,339 INFO L495 AbstractCegarLoop]: Abstraction has 9509 states and 14585 transitions. [2022-11-23 15:50:29,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 2 states have call successors, (285), 2 states have call predecessors, (285), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-23 15:50:29,341 INFO L276 IsEmpty]: Start isEmpty. Operand 9509 states and 14585 transitions. [2022-11-23 15:50:29,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2950 [2022-11-23 15:50:29,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:50:29,417 INFO L195 NwaCegarLoop]: trace histogram [219, 219, 219, 219, 219, 219, 219, 219, 219, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:50:29,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:50:29,417 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:50:29,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:50:29,418 INFO L85 PathProgramCache]: Analyzing trace with hash 207466107, now seen corresponding path program 1 times [2022-11-23 15:50:29,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:50:29,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985377282] [2022-11-23 15:50:29,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:50:29,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:50:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:50:35,307 INFO L134 CoverageAnalysis]: Checked inductivity of 244020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244020 trivial. 0 not checked. [2022-11-23 15:50:35,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:50:35,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985377282] [2022-11-23 15:50:35,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985377282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:50:35,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:50:35,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:50:35,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600127027] [2022-11-23 15:50:35,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:50:35,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:50:35,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:50:35,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:50:35,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:50:35,314 INFO L87 Difference]: Start difference. First operand 9509 states and 14585 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-23 15:50:37,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:50:40,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:50:40,013 INFO L93 Difference]: Finished difference Result 27352 states and 41992 transitions. [2022-11-23 15:50:40,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:50:40,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) Word has length 2949 [2022-11-23 15:50:40,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:50:40,198 INFO L225 Difference]: With dead ends: 27352 [2022-11-23 15:50:40,199 INFO L226 Difference]: Without dead ends: 18405 [2022-11-23 15:50:40,277 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 [2022-11-23 15:50:40,283 INFO L413 NwaCegarLoop]: 4775 mSDtfsCounter, 3453 mSDsluCounter, 4108 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3453 SdHoareTripleChecker+Valid, 8883 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:50:40,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3453 Valid, 8883 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 430 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-11-23 15:50:40,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18405 states. [2022-11-23 15:50:41,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18405 to 18385. [2022-11-23 15:50:41,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18385 states, 12613 states have (on average 1.4171093316419567) internal successors, (17874), 12635 states have internal predecessors, (17874), 5178 states have call successors, (5178), 594 states have call predecessors, (5178), 593 states have return successors, (5169), 5155 states have call predecessors, (5169), 5169 states have call successors, (5169) [2022-11-23 15:50:41,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18385 states to 18385 states and 28221 transitions. [2022-11-23 15:50:41,755 INFO L78 Accepts]: Start accepts. Automaton has 18385 states and 28221 transitions. Word has length 2949 [2022-11-23 15:50:41,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:50:41,763 INFO L495 AbstractCegarLoop]: Abstraction has 18385 states and 28221 transitions. [2022-11-23 15:50:41,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-23 15:50:41,764 INFO L276 IsEmpty]: Start isEmpty. Operand 18385 states and 28221 transitions. [2022-11-23 15:50:41,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2952 [2022-11-23 15:50:41,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:50:41,930 INFO L195 NwaCegarLoop]: trace histogram [219, 219, 219, 219, 219, 219, 219, 219, 219, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:50:41,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:50:41,930 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:50:41,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:50:41,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1420827507, now seen corresponding path program 1 times [2022-11-23 15:50:41,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:50:41,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511782970] [2022-11-23 15:50:41,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:50:41,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:50:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:50:46,959 INFO L134 CoverageAnalysis]: Checked inductivity of 244020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244020 trivial. 0 not checked. [2022-11-23 15:50:46,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:50:46,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511782970] [2022-11-23 15:50:46,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511782970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:50:46,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:50:46,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:50:46,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908420739] [2022-11-23 15:50:46,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:50:46,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:50:46,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:50:46,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:50:46,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:50:46,966 INFO L87 Difference]: Start difference. First operand 18385 states and 28221 transitions. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-23 15:50:49,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:50:52,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:50:52,189 INFO L93 Difference]: Finished difference Result 53914 states and 82794 transitions. [2022-11-23 15:50:52,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:50:52,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) Word has length 2951 [2022-11-23 15:50:52,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:50:52,365 INFO L225 Difference]: With dead ends: 53914 [2022-11-23 15:50:52,366 INFO L226 Difference]: Without dead ends: 36091 [2022-11-23 15:50:52,434 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 [2022-11-23 15:50:52,435 INFO L413 NwaCegarLoop]: 4787 mSDtfsCounter, 3445 mSDsluCounter, 4108 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3445 SdHoareTripleChecker+Valid, 8895 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:50:52,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3445 Valid, 8895 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 430 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-11-23 15:50:52,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36091 states. [2022-11-23 15:50:54,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36091 to 36065. [2022-11-23 15:50:54,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36065 states, 24849 states have (on average 1.4216266248138758) internal successors, (35326), 24887 states have internal predecessors, (35326), 10030 states have call successors, (10030), 1186 states have call predecessors, (10030), 1185 states have return successors, (10021), 9991 states have call predecessors, (10021), 10021 states have call successors, (10021) [2022-11-23 15:50:54,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36065 states to 36065 states and 55377 transitions. [2022-11-23 15:50:54,899 INFO L78 Accepts]: Start accepts. Automaton has 36065 states and 55377 transitions. Word has length 2951 [2022-11-23 15:50:54,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:50:54,904 INFO L495 AbstractCegarLoop]: Abstraction has 36065 states and 55377 transitions. [2022-11-23 15:50:54,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-23 15:50:54,904 INFO L276 IsEmpty]: Start isEmpty. Operand 36065 states and 55377 transitions. [2022-11-23 15:50:54,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2953 [2022-11-23 15:50:54,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:50:54,984 INFO L195 NwaCegarLoop]: trace histogram [219, 219, 219, 219, 219, 219, 219, 219, 219, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:50:54,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:50:54,985 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:50:54,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:50:54,986 INFO L85 PathProgramCache]: Analyzing trace with hash -82155693, now seen corresponding path program 1 times [2022-11-23 15:50:54,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:50:54,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805533975] [2022-11-23 15:50:54,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:50:54,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:50:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:51:00,444 INFO L134 CoverageAnalysis]: Checked inductivity of 244020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244020 trivial. 0 not checked. [2022-11-23 15:51:00,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:51:00,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805533975] [2022-11-23 15:51:00,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805533975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:51:00,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:51:00,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:51:00,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325285041] [2022-11-23 15:51:00,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:51:00,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:51:00,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:51:00,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:51:00,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:51:00,450 INFO L87 Difference]: Start difference. First operand 36065 states and 55377 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-23 15:51:02,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:51:06,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:51:07,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:51:07,874 INFO L93 Difference]: Finished difference Result 106818 states and 164046 transitions. [2022-11-23 15:51:07,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:51:07,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) Word has length 2952 [2022-11-23 15:51:07,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:51:08,491 INFO L225 Difference]: With dead ends: 106818 [2022-11-23 15:51:08,491 INFO L226 Difference]: Without dead ends: 71315 [2022-11-23 15:51:08,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:51:08,663 INFO L413 NwaCegarLoop]: 4801 mSDtfsCounter, 3438 mSDsluCounter, 4108 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3438 SdHoareTripleChecker+Valid, 8909 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:51:08,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3438 Valid, 8909 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 430 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-23 15:51:08,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71315 states. [2022-11-23 15:51:13,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71315 to 71281. [2022-11-23 15:51:13,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71281 states, 49225 states have (on average 1.4239512442864397) internal successors, (70094), 49295 states have internal predecessors, (70094), 19686 states have call successors, (19686), 2370 states have call predecessors, (19686), 2369 states have return successors, (19677), 19615 states have call predecessors, (19677), 19677 states have call successors, (19677) [2022-11-23 15:51:13,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71281 states to 71281 states and 109457 transitions. [2022-11-23 15:51:13,757 INFO L78 Accepts]: Start accepts. Automaton has 71281 states and 109457 transitions. Word has length 2952 [2022-11-23 15:51:13,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:51:13,760 INFO L495 AbstractCegarLoop]: Abstraction has 71281 states and 109457 transitions. [2022-11-23 15:51:13,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-23 15:51:13,761 INFO L276 IsEmpty]: Start isEmpty. Operand 71281 states and 109457 transitions. [2022-11-23 15:51:13,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2955 [2022-11-23 15:51:13,842 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:51:13,843 INFO L195 NwaCegarLoop]: trace histogram [219, 219, 219, 219, 219, 219, 219, 219, 219, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:51:13,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:51:13,844 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:51:13,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:51:13,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1817896553, now seen corresponding path program 1 times [2022-11-23 15:51:13,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:51:13,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531588359] [2022-11-23 15:51:13,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:51:13,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:51:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:51:19,578 INFO L134 CoverageAnalysis]: Checked inductivity of 244020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244020 trivial. 0 not checked. [2022-11-23 15:51:19,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:51:19,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531588359] [2022-11-23 15:51:19,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531588359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:51:19,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:51:19,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:51:19,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652601944] [2022-11-23 15:51:19,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:51:19,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:51:19,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:51:19,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:51:19,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:51:19,584 INFO L87 Difference]: Start difference. First operand 71281 states and 109457 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-23 15:51:21,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:51:24,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []