./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-43_2a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f425ff3-f0a7-4c24-86e4-c43a25fda262/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f425ff3-f0a7-4c24-86e4-c43a25fda262/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f425ff3-f0a7-4c24-86e4-c43a25fda262/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f425ff3-f0a7-4c24-86e4-c43a25fda262/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f425ff3-f0a7-4c24-86e4-c43a25fda262/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f425ff3-f0a7-4c24-86e4-c43a25fda262/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e57b227c3abe31be68752eb7f86364cb989c58b5c435217a8e7dfebd98179f97 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 04:05:17,022 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:05:17,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:05:17,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:05:17,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:05:17,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:05:17,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:05:17,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:05:17,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:05:17,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:05:17,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:05:17,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:05:17,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:05:17,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:05:17,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:05:17,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:05:17,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:05:17,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:05:17,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:05:17,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:05:17,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:05:17,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:05:17,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:05:17,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:05:17,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:05:17,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:05:17,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:05:17,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:05:17,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:05:17,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:05:17,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:05:17,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:05:17,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:05:17,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:05:17,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:05:17,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:05:17,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:05:17,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:05:17,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:05:17,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:05:17,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:05:17,144 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f425ff3-f0a7-4c24-86e4-c43a25fda262/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 04:05:17,182 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:05:17,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:05:17,195 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:05:17,195 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:05:17,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:05:17,197 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:05:17,197 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:05:17,197 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:05:17,198 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:05:17,198 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:05:17,199 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:05:17,199 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:05:17,200 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:05:17,200 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:05:17,200 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:05:17,200 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:05:17,200 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:05:17,201 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:05:17,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:05:17,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:05:17,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:05:17,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:05:17,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:05:17,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:05:17,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:05:17,205 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:05:17,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:05:17,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:05:17,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:05:17,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:05:17,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:05:17,207 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:05:17,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:05:17,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:05:17,208 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:05:17,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:05:17,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:05:17,208 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:05:17,209 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_5f425ff3-f0a7-4c24-86e4-c43a25fda262/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f425ff3-f0a7-4c24-86e4-c43a25fda262/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e57b227c3abe31be68752eb7f86364cb989c58b5c435217a8e7dfebd98179f97 [2022-11-03 04:05:17,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:05:17,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:05:17,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:05:17,495 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:05:17,496 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:05:17,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f425ff3-f0a7-4c24-86e4-c43a25fda262/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i [2022-11-03 04:05:17,580 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f425ff3-f0a7-4c24-86e4-c43a25fda262/bin/utaipan-7li7fVZpFI/data/e7998fd0d/79ec1c3df1724e63a9b4231c978a7dc5/FLAG815697aaa [2022-11-03 04:05:18,569 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:05:18,570 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f425ff3-f0a7-4c24-86e4-c43a25fda262/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i [2022-11-03 04:05:18,626 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f425ff3-f0a7-4c24-86e4-c43a25fda262/bin/utaipan-7li7fVZpFI/data/e7998fd0d/79ec1c3df1724e63a9b4231c978a7dc5/FLAG815697aaa [2022-11-03 04:05:18,920 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f425ff3-f0a7-4c24-86e4-c43a25fda262/bin/utaipan-7li7fVZpFI/data/e7998fd0d/79ec1c3df1724e63a9b4231c978a7dc5 [2022-11-03 04:05:18,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:05:18,925 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:05:18,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:05:18,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:05:18,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:05:18,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:05:18" (1/1) ... [2022-11-03 04:05:18,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f8924ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:18, skipping insertion in model container [2022-11-03 04:05:18,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:05:18" (1/1) ... [2022-11-03 04:05:18,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:05:19,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:05:21,971 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f425ff3-f0a7-4c24-86e4-c43a25fda262/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i[420903,420916] [2022-11-03 04:05:22,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:05:22,128 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:05:22,791 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f425ff3-f0a7-4c24-86e4-c43a25fda262/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i[420903,420916] [2022-11-03 04:05:22,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:05:22,954 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:05:22,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:22 WrapperNode [2022-11-03 04:05:22,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:05:22,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:05:22,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:05:22,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:05:22,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:22" (1/1) ... [2022-11-03 04:05:23,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:22" (1/1) ... [2022-11-03 04:05:23,443 INFO L138 Inliner]: procedures = 301, calls = 5487, calls flagged for inlining = 93, calls inlined = 87, statements flattened = 7642 [2022-11-03 04:05:23,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:05:23,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:05:23,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:05:23,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:05:23,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:22" (1/1) ... [2022-11-03 04:05:23,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:22" (1/1) ... [2022-11-03 04:05:23,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:22" (1/1) ... [2022-11-03 04:05:23,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:22" (1/1) ... [2022-11-03 04:05:23,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:22" (1/1) ... [2022-11-03 04:05:23,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:22" (1/1) ... [2022-11-03 04:05:23,988 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:22" (1/1) ... [2022-11-03 04:05:24,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:22" (1/1) ... [2022-11-03 04:05:24,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:05:24,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:05:24,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:05:24,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:05:24,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:22" (1/1) ... [2022-11-03 04:05:24,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:05:24,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f425ff3-f0a7-4c24-86e4-c43a25fda262/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:05:24,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f425ff3-f0a7-4c24-86e4-c43a25fda262/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:05:24,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f425ff3-f0a7-4c24-86e4-c43a25fda262/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:05:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 04:05:24,185 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 04:05:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-03 04:05:24,185 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-03 04:05:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure modalias_show [2022-11-03 04:05:24,185 INFO L138 BoogieDeclarations]: Found implementation of procedure modalias_show [2022-11-03 04:05:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-03 04:05:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_do_loop_tuple [2022-11-03 04:05:24,186 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_do_loop_tuple [2022-11-03 04:05:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_put_dev [2022-11-03 04:05:24,186 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_put_dev [2022-11-03 04:05:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 04:05:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure prod_id2_show [2022-11-03 04:05:24,187 INFO L138 BoogieDeclarations]: Found implementation of procedure prod_id2_show [2022-11-03 04:05:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 04:05:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 04:05:24,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 04:05:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 04:05:24,188 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 04:05:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_cis_cache [2022-11-03 04:05:24,188 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_cis_cache [2022-11-03 04:05:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-03 04:05:24,188 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-03 04:05:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_parse_uevents [2022-11-03 04:05:24,189 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_parse_uevents [2022-11-03 04:05:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_device_probe [2022-11-03 04:05:24,189 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_device_probe [2022-11-03 04:05:24,190 INFO L130 BoogieDeclarations]: Found specification of procedure pm_state_show [2022-11-03 04:05:24,190 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_state_show [2022-11-03 04:05:24,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 04:05:24,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 04:05:24,190 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_devmatch [2022-11-03 04:05:24,190 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_devmatch [2022-11-03 04:05:24,191 INFO L130 BoogieDeclarations]: Found specification of procedure device_unlock [2022-11-03 04:05:24,191 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unlock [2022-11-03 04:05:24,191 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 04:05:24,191 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 04:05:24,191 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_get_mac_from_cis [2022-11-03 04:05:24,191 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_get_mac_from_cis [2022-11-03 04:05:24,192 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-03 04:05:24,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-03 04:05:24,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 04:05:24,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 04:05:24,192 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_load_firmware [2022-11-03 04:05:24,193 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_load_firmware [2022-11-03 04:05:24,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 04:05:24,193 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 04:05:24,195 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_get_next_tuple [2022-11-03 04:05:24,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_get_next_tuple [2022-11-03 04:05:24,196 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 04:05:24,197 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 04:05:24,197 INFO L130 BoogieDeclarations]: Found specification of procedure read_cis_cache [2022-11-03 04:05:24,197 INFO L138 BoogieDeclarations]: Found implementation of procedure read_cis_cache [2022-11-03 04:05:24,197 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-03 04:05:24,197 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-03 04:05:24,197 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_add [2022-11-03 04:05:24,198 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_add [2022-11-03 04:05:24,198 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-03 04:05:24,198 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-03 04:05:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_io_space [2022-11-03 04:05:24,199 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_io_space [2022-11-03 04:05:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_get_tuple_data [2022-11-03 04:05:24,200 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_get_tuple_data [2022-11-03 04:05:24,200 INFO L130 BoogieDeclarations]: Found specification of procedure remove_cis_cache [2022-11-03 04:05:24,200 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_cis_cache [2022-11-03 04:05:24,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 04:05:24,200 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_request_irq [2022-11-03 04:05:24,200 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_request_irq [2022-11-03 04:05:24,201 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_parse_tuple [2022-11-03 04:05:24,201 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_parse_tuple [2022-11-03 04:05:24,201 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 04:05:24,201 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 04:05:24,201 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 04:05:24,201 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-11-03 04:05:24,202 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-11-03 04:05:24,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 04:05:24,203 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-03 04:05:24,203 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-11-03 04:05:24,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-11-03 04:05:24,203 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_disable_device [2022-11-03 04:05:24,203 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_disable_device [2022-11-03 04:05:24,204 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-03 04:05:24,204 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-03 04:05:24,205 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2022-11-03 04:05:24,205 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2022-11-03 04:05:24,205 INFO L130 BoogieDeclarations]: Found specification of procedure bus_for_each_dev [2022-11-03 04:05:24,205 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_for_each_dev [2022-11-03 04:05:24,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 04:05:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 04:05:24,206 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 04:05:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 04:05:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure request_resource [2022-11-03 04:05:24,208 INFO L138 BoogieDeclarations]: Found implementation of procedure request_resource [2022-11-03 04:05:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_requery_callback [2022-11-03 04:05:24,208 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_requery_callback [2022-11-03 04:05:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2022-11-03 04:05:24,208 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2022-11-03 04:05:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_release_configuration [2022-11-03 04:05:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_release_configuration [2022-11-03 04:05:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 04:05:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 04:05:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_suspend [2022-11-03 04:05:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_suspend [2022-11-03 04:05:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 04:05:24,210 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 04:05:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_validate_mem [2022-11-03 04:05:24,210 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_validate_mem [2022-11-03 04:05:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_release_window [2022-11-03 04:05:24,211 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_release_window [2022-11-03 04:05:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_find_mem_region [2022-11-03 04:05:24,212 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_find_mem_region [2022-11-03 04:05:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 04:05:24,217 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 04:05:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure release_io_space [2022-11-03 04:05:24,217 INFO L138 BoogieDeclarations]: Found implementation of procedure release_io_space [2022-11-03 04:05:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_early_resume [2022-11-03 04:05:24,219 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_early_resume [2022-11-03 04:05:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure follow_link [2022-11-03 04:05:24,219 INFO L138 BoogieDeclarations]: Found implementation of procedure follow_link [2022-11-03 04:05:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 04:05:24,225 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_device_add [2022-11-03 04:05:24,225 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_device_add [2022-11-03 04:05:24,225 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-03 04:05:24,225 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-03 04:05:24,225 INFO L130 BoogieDeclarations]: Found specification of procedure runtime_resume [2022-11-03 04:05:24,226 INFO L138 BoogieDeclarations]: Found implementation of procedure runtime_resume [2022-11-03 04:05:24,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 04:05:24,226 INFO L130 BoogieDeclarations]: Found specification of procedure prod_id1_show [2022-11-03 04:05:24,226 INFO L138 BoogieDeclarations]: Found implementation of procedure prod_id1_show [2022-11-03 04:05:24,226 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2022-11-03 04:05:24,226 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2022-11-03 04:05:24,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 04:05:24,227 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_read_cis_mem [2022-11-03 04:05:24,227 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_read_cis_mem [2022-11-03 04:05:24,227 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_card_add [2022-11-03 04:05:24,227 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_card_add [2022-11-03 04:05:24,227 INFO L130 BoogieDeclarations]: Found specification of procedure prod_id3_show [2022-11-03 04:05:24,227 INFO L138 BoogieDeclarations]: Found implementation of procedure prod_id3_show [2022-11-03 04:05:24,228 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_device_query [2022-11-03 04:05:24,228 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_device_query [2022-11-03 04:05:24,228 INFO L130 BoogieDeclarations]: Found specification of procedure verify_cis_cache [2022-11-03 04:05:24,228 INFO L138 BoogieDeclarations]: Found implementation of procedure verify_cis_cache [2022-11-03 04:05:24,228 INFO L130 BoogieDeclarations]: Found specification of procedure parse_strings [2022-11-03 04:05:24,228 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_strings [2022-11-03 04:05:24,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 04:05:24,229 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 04:05:24,229 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2022-11-03 04:05:24,229 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2022-11-03 04:05:24,229 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_resume_callback [2022-11-03 04:05:24,229 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_resume_callback [2022-11-03 04:05:24,229 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_resume [2022-11-03 04:05:24,229 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_resume [2022-11-03 04:05:24,230 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_validate_cis [2022-11-03 04:05:24,230 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_validate_cis [2022-11-03 04:05:24,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 04:05:24,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 04:05:24,230 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_put_socket [2022-11-03 04:05:24,230 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_put_socket [2022-11-03 04:05:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure func_id_show [2022-11-03 04:05:24,231 INFO L138 BoogieDeclarations]: Found implementation of procedure func_id_show [2022-11-03 04:05:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 04:05:24,231 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 04:05:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 04:05:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_enable_device [2022-11-03 04:05:24,231 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_enable_device [2022-11-03 04:05:24,232 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_setup_isa_irq [2022-11-03 04:05:24,232 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_setup_isa_irq [2022-11-03 04:05:24,232 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_loop_tuple [2022-11-03 04:05:24,232 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_loop_tuple [2022-11-03 04:05:24,232 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_loop_tuple [2022-11-03 04:05:24,232 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_loop_tuple [2022-11-03 04:05:24,232 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-03 04:05:24,233 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-03 04:05:24,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 04:05:24,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 04:05:24,233 INFO L130 BoogieDeclarations]: Found specification of procedure function_show [2022-11-03 04:05:24,233 INFO L138 BoogieDeclarations]: Found implementation of procedure function_show [2022-11-03 04:05:24,233 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_requery [2022-11-03 04:05:24,233 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_requery [2022-11-03 04:05:24,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 04:05:24,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 04:05:24,234 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_suspend_callback [2022-11-03 04:05:24,234 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_suspend_callback [2022-11-03 04:05:24,234 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_get_first_tuple [2022-11-03 04:05:24,234 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_get_first_tuple [2022-11-03 04:05:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure device_lock [2022-11-03 04:05:24,235 INFO L138 BoogieDeclarations]: Found implementation of procedure device_lock [2022-11-03 04:05:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 04:05:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_match [2022-11-03 04:05:24,235 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_match [2022-11-03 04:05:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 04:05:24,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 04:05:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_dev_suspend [2022-11-03 04:05:24,236 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_dev_suspend [2022-11-03 04:05:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_uevent [2022-11-03 04:05:24,236 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_uevent [2022-11-03 04:05:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-03 04:05:24,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-03 04:05:24,237 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_release_dev [2022-11-03 04:05:24,237 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_release_dev [2022-11-03 04:05:24,237 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_do_loop_config [2022-11-03 04:05:24,237 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_do_loop_config [2022-11-03 04:05:24,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:05:24,237 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_card_remove [2022-11-03 04:05:24,237 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_card_remove [2022-11-03 04:05:24,238 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_add_socket [2022-11-03 04:05:24,238 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_add_socket [2022-11-03 04:05:24,238 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_register_pcmcia [2022-11-03 04:05:24,238 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_register_pcmcia [2022-11-03 04:05:24,238 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 04:05:24,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 04:05:24,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 04:05:24,239 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_replace_cis [2022-11-03 04:05:24,239 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_replace_cis [2022-11-03 04:05:24,239 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 04:05:24,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 04:05:24,239 INFO L130 BoogieDeclarations]: Found specification of procedure release_resource [2022-11-03 04:05:24,239 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resource [2022-11-03 04:05:24,240 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 04:05:24,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 04:05:24,240 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_remove [2022-11-03 04:05:24,240 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_remove [2022-11-03 04:05:24,240 INFO L130 BoogieDeclarations]: Found specification of procedure manf_id_show [2022-11-03 04:05:24,240 INFO L138 BoogieDeclarations]: Found implementation of procedure manf_id_show [2022-11-03 04:05:24,240 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_loop_config [2022-11-03 04:05:24,241 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_loop_config [2022-11-03 04:05:24,241 INFO L130 BoogieDeclarations]: Found specification of procedure parse_power [2022-11-03 04:05:24,241 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_power [2022-11-03 04:05:24,241 INFO L130 BoogieDeclarations]: Found specification of procedure card_id_show [2022-11-03 04:05:24,241 INFO L138 BoogieDeclarations]: Found implementation of procedure card_id_show [2022-11-03 04:05:24,241 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_get_socket [2022-11-03 04:05:24,241 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_get_socket [2022-11-03 04:05:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-03 04:05:24,242 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-03 04:05:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_fixup_iowidth [2022-11-03 04:05:24,242 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_fixup_iowidth [2022-11-03 04:05:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_write_cis_mem [2022-11-03 04:05:24,243 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_write_cis_mem [2022-11-03 04:05:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure runtime_suspend [2022-11-03 04:05:24,246 INFO L138 BoogieDeclarations]: Found implementation of procedure runtime_suspend [2022-11-03 04:05:24,246 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 04:05:24,247 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 04:05:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure prod_id4_show [2022-11-03 04:05:24,247 INFO L138 BoogieDeclarations]: Found implementation of procedure prod_id4_show [2022-11-03 04:05:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure resources_show [2022-11-03 04:05:24,247 INFO L138 BoogieDeclarations]: Found implementation of procedure resources_show [2022-11-03 04:05:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 04:05:24,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 04:05:24,250 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-03 04:05:24,251 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-03 04:05:24,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:05:24,251 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-03 04:05:24,251 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-03 04:05:24,251 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2022-11-03 04:05:24,251 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2022-11-03 04:05:24,251 INFO L130 BoogieDeclarations]: Found specification of procedure set_cis_map [2022-11-03 04:05:24,252 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cis_map [2022-11-03 04:05:24,252 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_device_remove [2022-11-03 04:05:24,252 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_device_remove [2022-11-03 04:05:24,252 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-03 04:05:24,252 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-03 04:05:24,252 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-03 04:05:24,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:05:24,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:05:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_dev_resume [2022-11-03 04:05:24,253 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_dev_resume [2022-11-03 04:05:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_read_tuple [2022-11-03 04:05:24,253 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_read_tuple [2022-11-03 04:05:25,480 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:05:25,484 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:05:25,686 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 04:05:58,202 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:06:00,546 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:06:00,546 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 04:06:00,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:06:00 BoogieIcfgContainer [2022-11-03 04:06:00,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:06:00,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:06:00,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:06:00,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:06:00,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:05:18" (1/3) ... [2022-11-03 04:06:00,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7221cade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:06:00, skipping insertion in model container [2022-11-03 04:06:00,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:22" (2/3) ... [2022-11-03 04:06:00,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7221cade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:06:00, skipping insertion in model container [2022-11-03 04:06:00,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:06:00" (3/3) ... [2022-11-03 04:06:00,562 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i [2022-11-03 04:06:00,583 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:06:00,584 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:06:00,711 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:06:00,721 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;@51c36751, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:06:00,721 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:06:00,734 INFO L276 IsEmpty]: Start isEmpty. Operand has 2269 states, 1518 states have (on average 1.4242424242424243) internal successors, (2162), 1567 states have internal predecessors, (2162), 626 states have call successors, (626), 124 states have call predecessors, (626), 123 states have return successors, (607), 605 states have call predecessors, (607), 607 states have call successors, (607) [2022-11-03 04:06:00,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2022-11-03 04:06:00,775 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:00,776 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:00,776 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:00,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:00,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1825116858, now seen corresponding path program 1 times [2022-11-03 04:06:00,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:00,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107146944] [2022-11-03 04:06:00,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:00,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:02,655 INFO L134 CoverageAnalysis]: Checked inductivity of 7842 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7842 trivial. 0 not checked. [2022-11-03 04:06:02,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:02,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107146944] [2022-11-03 04:06:02,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107146944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:02,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:06:02,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:06:02,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791272947] [2022-11-03 04:06:02,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:02,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:06:02,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:02,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:06:02,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:02,704 INFO L87 Difference]: Start difference. First operand has 2269 states, 1518 states have (on average 1.4242424242424243) internal successors, (2162), 1567 states have internal predecessors, (2162), 626 states have call successors, (626), 124 states have call predecessors, (626), 123 states have return successors, (607), 605 states have call predecessors, (607), 607 states have call successors, (607) Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2022-11-03 04:06:04,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:08,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:10,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:14,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:14,293 INFO L93 Difference]: Finished difference Result 6588 states and 10173 transitions. [2022-11-03 04:06:14,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:06:14,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 532 [2022-11-03 04:06:14,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:14,349 INFO L225 Difference]: With dead ends: 6588 [2022-11-03 04:06:14,350 INFO L226 Difference]: Without dead ends: 4361 [2022-11-03 04:06:14,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:14,376 INFO L413 NwaCegarLoop]: 3657 mSDtfsCounter, 3190 mSDsluCounter, 3383 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3191 SdHoareTripleChecker+Valid, 6737 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:14,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3191 Valid, 6737 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 618 Invalid, 3 Unknown, 0 Unchecked, 11.2s Time] [2022-11-03 04:06:14,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4361 states. [2022-11-03 04:06:14,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4361 to 4356. [2022-11-03 04:06:14,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4356 states, 2953 states have (on average 1.4158482898747038) internal successors, (4181), 3010 states have internal predecessors, (4181), 1159 states have call successors, (1159), 245 states have call predecessors, (1159), 243 states have return successors, (1158), 1152 states have call predecessors, (1158), 1158 states have call successors, (1158) [2022-11-03 04:06:14,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4356 states to 4356 states and 6498 transitions. [2022-11-03 04:06:14,914 INFO L78 Accepts]: Start accepts. Automaton has 4356 states and 6498 transitions. Word has length 532 [2022-11-03 04:06:14,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:14,926 INFO L495 AbstractCegarLoop]: Abstraction has 4356 states and 6498 transitions. [2022-11-03 04:06:14,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2022-11-03 04:06:14,927 INFO L276 IsEmpty]: Start isEmpty. Operand 4356 states and 6498 transitions. [2022-11-03 04:06:14,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-11-03 04:06:14,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:14,950 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:14,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:06:14,951 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:14,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:14,952 INFO L85 PathProgramCache]: Analyzing trace with hash -2070376056, now seen corresponding path program 1 times [2022-11-03 04:06:14,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:14,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932413497] [2022-11-03 04:06:14,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:14,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:16,051 INFO L134 CoverageAnalysis]: Checked inductivity of 7842 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7842 trivial. 0 not checked. [2022-11-03 04:06:16,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:16,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932413497] [2022-11-03 04:06:16,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932413497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:16,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:06:16,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:06:16,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368847090] [2022-11-03 04:06:16,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:16,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:06:16,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:16,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:06:16,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:16,061 INFO L87 Difference]: Start difference. First operand 4356 states and 6498 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-03 04:06:18,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:22,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:24,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:25,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:28,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:28,864 INFO L93 Difference]: Finished difference Result 12784 states and 19052 transitions. [2022-11-03 04:06:28,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:06:28,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 553 [2022-11-03 04:06:28,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:28,931 INFO L225 Difference]: With dead ends: 12784 [2022-11-03 04:06:28,931 INFO L226 Difference]: Without dead ends: 8517 [2022-11-03 04:06:28,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:28,959 INFO L413 NwaCegarLoop]: 3616 mSDtfsCounter, 3101 mSDsluCounter, 3308 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3102 SdHoareTripleChecker+Valid, 6626 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:28,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3102 Valid, 6626 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 641 Invalid, 3 Unknown, 0 Unchecked, 12.4s Time] [2022-11-03 04:06:28,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8517 states. [2022-11-03 04:06:29,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8517 to 8511. [2022-11-03 04:06:29,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8511 states, 5780 states have (on average 1.417128027681661) internal successors, (8191), 5895 states have internal predecessors, (8191), 2245 states have call successors, (2245), 489 states have call predecessors, (2245), 485 states have return successors, (2244), 2230 states have call predecessors, (2244), 2244 states have call successors, (2244) [2022-11-03 04:06:29,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8511 states to 8511 states and 12680 transitions. [2022-11-03 04:06:29,758 INFO L78 Accepts]: Start accepts. Automaton has 8511 states and 12680 transitions. Word has length 553 [2022-11-03 04:06:29,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:29,761 INFO L495 AbstractCegarLoop]: Abstraction has 8511 states and 12680 transitions. [2022-11-03 04:06:29,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-03 04:06:29,762 INFO L276 IsEmpty]: Start isEmpty. Operand 8511 states and 12680 transitions. [2022-11-03 04:06:29,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2022-11-03 04:06:29,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:29,779 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:29,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:06:29,782 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:29,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:29,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1304009101, now seen corresponding path program 1 times [2022-11-03 04:06:29,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:29,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156592115] [2022-11-03 04:06:29,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:29,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:30,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:30,974 INFO L134 CoverageAnalysis]: Checked inductivity of 7842 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7842 trivial. 0 not checked. [2022-11-03 04:06:30,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:30,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156592115] [2022-11-03 04:06:30,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156592115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:30,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:06:30,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:06:30,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330908165] [2022-11-03 04:06:30,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:30,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:06:30,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:30,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:06:30,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:30,977 INFO L87 Difference]: Start difference. First operand 8511 states and 12680 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2022-11-03 04:06:33,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:36,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:41,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:41,835 INFO L93 Difference]: Finished difference Result 25081 states and 37322 transitions. [2022-11-03 04:06:41,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:06:41,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 550 [2022-11-03 04:06:41,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:41,963 INFO L225 Difference]: With dead ends: 25081 [2022-11-03 04:06:41,964 INFO L226 Difference]: Without dead ends: 16659 [2022-11-03 04:06:42,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:42,014 INFO L413 NwaCegarLoop]: 3683 mSDtfsCounter, 3054 mSDsluCounter, 3300 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3055 SdHoareTripleChecker+Valid, 6683 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:42,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3055 Valid, 6683 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 662 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2022-11-03 04:06:42,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16659 states. [2022-11-03 04:06:42,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16659 to 16655. [2022-11-03 04:06:42,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16655 states, 11326 states have (on average 1.4171817058096414) internal successors, (16051), 11553 states have internal predecessors, (16051), 4359 states have call successors, (4359), 977 states have call predecessors, (4359), 969 states have return successors, (4358), 4332 states have call predecessors, (4358), 4358 states have call successors, (4358) [2022-11-03 04:06:43,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16655 states to 16655 states and 24768 transitions. [2022-11-03 04:06:43,007 INFO L78 Accepts]: Start accepts. Automaton has 16655 states and 24768 transitions. Word has length 550 [2022-11-03 04:06:43,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:43,008 INFO L495 AbstractCegarLoop]: Abstraction has 16655 states and 24768 transitions. [2022-11-03 04:06:43,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2022-11-03 04:06:43,009 INFO L276 IsEmpty]: Start isEmpty. Operand 16655 states and 24768 transitions. [2022-11-03 04:06:43,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2022-11-03 04:06:43,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:43,024 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:43,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:06:43,024 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:43,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:43,026 INFO L85 PathProgramCache]: Analyzing trace with hash -733203218, now seen corresponding path program 1 times [2022-11-03 04:06:43,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:43,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129188800] [2022-11-03 04:06:43,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:43,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:43,944 INFO L134 CoverageAnalysis]: Checked inductivity of 7844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7844 trivial. 0 not checked. [2022-11-03 04:06:43,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:43,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129188800] [2022-11-03 04:06:43,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129188800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:43,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:06:43,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:06:43,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071110874] [2022-11-03 04:06:43,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:43,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:06:43,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:43,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:06:43,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:43,947 INFO L87 Difference]: Start difference. First operand 16655 states and 24768 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-03 04:06:46,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:48,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:51,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:56,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:56,821 INFO L93 Difference]: Finished difference Result 49606 states and 73749 transitions. [2022-11-03 04:06:56,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:06:56,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 575 [2022-11-03 04:06:56,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:57,017 INFO L225 Difference]: With dead ends: 49606 [2022-11-03 04:06:57,017 INFO L226 Difference]: Without dead ends: 33040 [2022-11-03 04:06:57,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:57,105 INFO L413 NwaCegarLoop]: 3756 mSDtfsCounter, 3143 mSDsluCounter, 3336 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3144 SdHoareTripleChecker+Valid, 6790 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:57,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3144 Valid, 6790 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 624 Invalid, 3 Unknown, 0 Unchecked, 12.1s Time] [2022-11-03 04:06:57,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33040 states. [2022-11-03 04:06:59,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33040 to 33035. [2022-11-03 04:06:59,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33035 states, 22452 states have (on average 1.4169339034384465) internal successors, (31813), 22907 states have internal predecessors, (31813), 8645 states have call successors, (8645), 1953 states have call predecessors, (8645), 1937 states have return successors, (8644), 8590 states have call predecessors, (8644), 8644 states have call successors, (8644) [2022-11-03 04:06:59,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33035 states to 33035 states and 49102 transitions. [2022-11-03 04:06:59,465 INFO L78 Accepts]: Start accepts. Automaton has 33035 states and 49102 transitions. Word has length 575 [2022-11-03 04:06:59,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:59,466 INFO L495 AbstractCegarLoop]: Abstraction has 33035 states and 49102 transitions. [2022-11-03 04:06:59,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-03 04:06:59,466 INFO L276 IsEmpty]: Start isEmpty. Operand 33035 states and 49102 transitions. [2022-11-03 04:06:59,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2022-11-03 04:06:59,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:59,483 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:59,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 04:06:59,483 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:59,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:59,484 INFO L85 PathProgramCache]: Analyzing trace with hash 419243591, now seen corresponding path program 1 times [2022-11-03 04:06:59,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:59,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46878494] [2022-11-03 04:06:59,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:59,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:00,356 INFO L134 CoverageAnalysis]: Checked inductivity of 7848 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7848 trivial. 0 not checked. [2022-11-03 04:07:00,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:07:00,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46878494] [2022-11-03 04:07:00,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46878494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:00,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:00,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:07:00,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504312842] [2022-11-03 04:07:00,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:00,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:07:00,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:07:00,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:07:00,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:07:00,359 INFO L87 Difference]: Start difference. First operand 33035 states and 49102 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-03 04:07:02,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:09,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:11,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:11,961 INFO L93 Difference]: Finished difference Result 98265 states and 146002 transitions. [2022-11-03 04:07:11,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:07:11,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 581 [2022-11-03 04:07:11,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:12,428 INFO L225 Difference]: With dead ends: 98265 [2022-11-03 04:07:12,428 INFO L226 Difference]: Without dead ends: 65319 [2022-11-03 04:07:12,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:07:12,810 INFO L413 NwaCegarLoop]: 4690 mSDtfsCounter, 3094 mSDsluCounter, 3336 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3095 SdHoareTripleChecker+Valid, 7724 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:12,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3095 Valid, 7724 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 771 Invalid, 2 Unknown, 0 Unchecked, 9.9s Time] [2022-11-03 04:07:12,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65319 states. [2022-11-03 04:07:16,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65319 to 65307. [2022-11-03 04:07:16,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65307 states, 44444 states have (on average 1.4181666816668166) internal successors, (63029), 45339 states have internal predecessors, (63029), 16989 states have call successors, (16989), 3905 states have call predecessors, (16989), 3873 states have return successors, (16988), 16878 states have call predecessors, (16988), 16988 states have call successors, (16988) [2022-11-03 04:07:16,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65307 states to 65307 states and 97006 transitions. [2022-11-03 04:07:16,950 INFO L78 Accepts]: Start accepts. Automaton has 65307 states and 97006 transitions. Word has length 581 [2022-11-03 04:07:16,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:16,951 INFO L495 AbstractCegarLoop]: Abstraction has 65307 states and 97006 transitions. [2022-11-03 04:07:16,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-03 04:07:16,952 INFO L276 IsEmpty]: Start isEmpty. Operand 65307 states and 97006 transitions. [2022-11-03 04:07:16,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2022-11-03 04:07:16,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:16,957 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 42, 42, 42, 42, 42, 42, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:16,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 04:07:16,958 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:16,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:16,958 INFO L85 PathProgramCache]: Analyzing trace with hash -334649306, now seen corresponding path program 1 times [2022-11-03 04:07:16,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:07:16,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998565474] [2022-11-03 04:07:16,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:16,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:07:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:18,105 INFO L134 CoverageAnalysis]: Checked inductivity of 8806 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8806 trivial. 0 not checked. [2022-11-03 04:07:18,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:07:18,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998565474] [2022-11-03 04:07:18,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998565474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:18,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:18,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:07:18,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037564079] [2022-11-03 04:07:18,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:18,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:07:18,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:07:18,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:07:18,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:07:18,109 INFO L87 Difference]: Start difference. First operand 65307 states and 97006 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-03 04:07:20,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:27,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:32,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:32,655 INFO L93 Difference]: Finished difference Result 189776 states and 281747 transitions. [2022-11-03 04:07:32,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:07:32,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 599 [2022-11-03 04:07:32,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:33,724 INFO L225 Difference]: With dead ends: 189776 [2022-11-03 04:07:33,724 INFO L226 Difference]: Without dead ends: 124558 [2022-11-03 04:07:34,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:07:34,009 INFO L413 NwaCegarLoop]: 5529 mSDtfsCounter, 3044 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3045 SdHoareTripleChecker+Valid, 8563 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:34,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3045 Valid, 8563 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 862 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2022-11-03 04:07:34,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124558 states. [2022-11-03 04:07:38,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124558 to 124546. [2022-11-03 04:07:39,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124546 states, 84739 states have (on average 1.418237175326591) internal successors, (120180), 86446 states have internal predecessors, (120180), 32326 states have call successors, (32326), 7542 states have call predecessors, (32326), 7480 states have return successors, (32325), 32109 states have call predecessors, (32325), 32325 states have call successors, (32325) [2022-11-03 04:07:40,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124546 states to 124546 states and 184831 transitions. [2022-11-03 04:07:40,585 INFO L78 Accepts]: Start accepts. Automaton has 124546 states and 184831 transitions. Word has length 599 [2022-11-03 04:07:40,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:40,586 INFO L495 AbstractCegarLoop]: Abstraction has 124546 states and 184831 transitions. [2022-11-03 04:07:40,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-03 04:07:40,587 INFO L276 IsEmpty]: Start isEmpty. Operand 124546 states and 184831 transitions. [2022-11-03 04:07:40,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2022-11-03 04:07:40,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:40,593 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 48, 48, 48, 48, 48, 48, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:40,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 04:07:40,593 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:40,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:40,594 INFO L85 PathProgramCache]: Analyzing trace with hash 318280531, now seen corresponding path program 1 times [2022-11-03 04:07:40,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:07:40,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278863726] [2022-11-03 04:07:40,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:40,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:07:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:41,963 INFO L134 CoverageAnalysis]: Checked inductivity of 11326 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11326 trivial. 0 not checked. [2022-11-03 04:07:41,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:07:41,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278863726] [2022-11-03 04:07:41,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278863726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:41,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:41,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:07:41,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963263758] [2022-11-03 04:07:41,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:41,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:07:41,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:07:41,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:07:41,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:07:41,967 INFO L87 Difference]: Start difference. First operand 124546 states and 184831 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-03 04:07:44,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:50,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:52,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:58,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:58,095 INFO L93 Difference]: Finished difference Result 126294 states and 187395 transitions. [2022-11-03 04:07:58,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:07:58,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 649 [2022-11-03 04:07:58,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:58,764 INFO L225 Difference]: With dead ends: 126294 [2022-11-03 04:07:58,764 INFO L226 Difference]: Without dead ends: 126291 [2022-11-03 04:07:58,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:07:58,828 INFO L413 NwaCegarLoop]: 3524 mSDtfsCounter, 3185 mSDsluCounter, 2588 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 5839 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:58,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3186 Valid, 5839 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 578 Invalid, 3 Unknown, 0 Unchecked, 12.5s Time] [2022-11-03 04:07:58,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126291 states. [2022-11-03 04:08:03,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126291 to 126290. [2022-11-03 04:08:03,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126290 states, 85896 states have (on average 1.4172720499208344) internal successors, (121738), 87629 states have internal predecessors, (121738), 32796 states have call successors, (32796), 7660 states have call predecessors, (32796), 7597 states have return successors, (32795), 32576 states have call predecessors, (32795), 32795 states have call successors, (32795) [2022-11-03 04:08:05,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126290 states to 126290 states and 187329 transitions. [2022-11-03 04:08:05,238 INFO L78 Accepts]: Start accepts. Automaton has 126290 states and 187329 transitions. Word has length 649 [2022-11-03 04:08:05,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:05,239 INFO L495 AbstractCegarLoop]: Abstraction has 126290 states and 187329 transitions. [2022-11-03 04:08:05,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-03 04:08:05,240 INFO L276 IsEmpty]: Start isEmpty. Operand 126290 states and 187329 transitions. [2022-11-03 04:08:05,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2022-11-03 04:08:05,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:05,821 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 48, 48, 48, 48, 48, 48, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:05,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 04:08:05,821 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:05,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:05,822 INFO L85 PathProgramCache]: Analyzing trace with hash 332236793, now seen corresponding path program 1 times [2022-11-03 04:08:05,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:05,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711909716] [2022-11-03 04:08:05,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:05,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:07,652 INFO L134 CoverageAnalysis]: Checked inductivity of 11356 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11347 trivial. 0 not checked. [2022-11-03 04:08:07,652 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:07,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711909716] [2022-11-03 04:08:07,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711909716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:07,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:07,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:08:07,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102477] [2022-11-03 04:08:07,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:07,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:08:07,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:07,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:08:07,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:08:07,655 INFO L87 Difference]: Start difference. First operand 126290 states and 187329 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2022-11-03 04:08:09,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []