./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P --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 549d105dbd2b95e1c241c01b48dc69ec107f34e0fb82917a92dcec665dfc2efc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:12:53,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:12:53,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:12:53,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:12:53,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:12:53,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:12:53,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:12:53,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:12:53,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:12:53,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:12:53,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:12:53,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:12:53,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:12:53,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:12:53,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:12:53,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:12:53,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:12:53,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:12:53,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:12:53,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:12:53,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:12:53,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:12:53,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:12:53,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:12:53,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:12:53,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:12:53,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:12:53,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:12:53,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:12:53,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:12:53,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:12:53,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:12:53,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:12:53,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:12:53,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:12:53,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:12:53,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:12:53,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:12:53,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:12:53,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:12:53,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:12:53,188 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 23:12:53,231 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:12:53,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:12:53,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:12:53,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:12:53,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:12:53,239 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:12:53,240 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:12:53,240 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:12:53,240 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:12:53,240 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:12:53,241 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:12:53,242 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:12:53,242 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:12:53,242 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:12:53,242 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:12:53,243 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:12:53,243 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:12:53,243 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:12:53,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:12:53,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:12:53,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:12:53,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:12:53,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:12:53,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:12:53,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:12:53,245 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:12:53,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:12:53,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:12:53,247 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:12:53,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:12:53,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:12:53,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:12:53,248 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:12:53,249 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:12:53,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:12:53,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:12:53,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:12:53,249 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:12:53,250 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 549d105dbd2b95e1c241c01b48dc69ec107f34e0fb82917a92dcec665dfc2efc [2021-11-20 23:12:53,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:12:53,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:12:53,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:12:53,557 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:12:53,557 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:12:53,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i [2021-11-20 23:12:53,627 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/data/b61d59565/3f0b6c4ede3f4f3eb1c1d5b2cf682ff7/FLAGf1cc785f0 [2021-11-20 23:12:54,694 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:12:54,695 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i [2021-11-20 23:12:54,740 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/data/b61d59565/3f0b6c4ede3f4f3eb1c1d5b2cf682ff7/FLAGf1cc785f0 [2021-11-20 23:12:55,095 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/data/b61d59565/3f0b6c4ede3f4f3eb1c1d5b2cf682ff7 [2021-11-20 23:12:55,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:12:55,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:12:55,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:12:55,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:12:55,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:12:55,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:12:55" (1/1) ... [2021-11-20 23:12:55,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@407a0140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:55, skipping insertion in model container [2021-11-20 23:12:55,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:12:55" (1/1) ... [2021-11-20 23:12:55,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:12:55,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:12:58,132 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_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i[379011,379024] [2021-11-20 23:12:58,176 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:12:58,201 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:12:58,839 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_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i[379011,379024] [2021-11-20 23:12:58,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:12:59,212 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:12:59,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59 WrapperNode [2021-11-20 23:12:59,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:12:59,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:12:59,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:12:59,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:12:59,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2021-11-20 23:12:59,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2021-11-20 23:12:59,664 INFO L137 Inliner]: procedures = 343, calls = 3523, calls flagged for inlining = 191, calls inlined = 172, statements flattened = 8311 [2021-11-20 23:12:59,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:12:59,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:12:59,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:12:59,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:12:59,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2021-11-20 23:12:59,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2021-11-20 23:12:59,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2021-11-20 23:12:59,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2021-11-20 23:13:00,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2021-11-20 23:13:00,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2021-11-20 23:13:00,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2021-11-20 23:13:00,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:13:00,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:13:00,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:13:00,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:13:00,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2021-11-20 23:13:00,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:13:00,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:13:00,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:13:00,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:13:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2021-11-20 23:13:00,378 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2021-11-20 23:13:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-20 23:13:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 23:13:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 23:13:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-20 23:13:00,378 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-20 23:13:00,379 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-20 23:13:00,379 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-20 23:13:00,379 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-20 23:13:00,379 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-20 23:13:00,379 INFO L130 BoogieDeclarations]: Found specification of procedure set_signals [2021-11-20 23:13:00,379 INFO L138 BoogieDeclarations]: Found implementation of procedure set_signals [2021-11-20 23:13:00,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 23:13:00,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 23:13:00,380 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_dma_bufs [2021-11-20 23:13:00,380 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_dma_bufs [2021-11-20 23:13:00,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-11-20 23:13:00,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-11-20 23:13:00,380 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_char [2021-11-20 23:13:00,381 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_char [2021-11-20 23:13:00,381 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-20 23:13:00,381 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-20 23:13:00,381 INFO L130 BoogieDeclarations]: Found specification of procedure tx_stop [2021-11-20 23:13:00,381 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_stop [2021-11-20 23:13:00,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-11-20 23:13:00,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-11-20 23:13:00,382 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-20 23:13:00,382 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-20 23:13:00,382 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-20 23:13:00,382 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-20 23:13:00,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 23:13:00,383 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 23:13:00,383 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 23:13:00,383 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 23:13:00,383 INFO L130 BoogieDeclarations]: Found specification of procedure free_bufs [2021-11-20 23:13:00,383 INFO L138 BoogieDeclarations]: Found implementation of procedure free_bufs [2021-11-20 23:13:00,383 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-20 23:13:00,384 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-20 23:13:00,384 INFO L130 BoogieDeclarations]: Found specification of procedure change_params [2021-11-20 23:13:00,384 INFO L138 BoogieDeclarations]: Found implementation of procedure change_params [2021-11-20 23:13:00,384 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-11-20 23:13:00,384 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-11-20 23:13:00,384 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-20 23:13:00,384 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-20 23:13:00,385 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 23:13:00,385 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 23:13:00,385 INFO L130 BoogieDeclarations]: Found specification of procedure tx_start [2021-11-20 23:13:00,386 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_start [2021-11-20 23:13:00,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:13:00,387 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 23:13:00,388 INFO L130 BoogieDeclarations]: Found specification of procedure startup [2021-11-20 23:13:00,388 INFO L138 BoogieDeclarations]: Found implementation of procedure startup [2021-11-20 23:13:00,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:13:00,388 INFO L130 BoogieDeclarations]: Found specification of procedure reset_rbufs [2021-11-20 23:13:00,388 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_rbufs [2021-11-20 23:13:00,388 INFO L130 BoogieDeclarations]: Found specification of procedure wait_until_sent [2021-11-20 23:13:00,389 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_until_sent [2021-11-20 23:13:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-11-20 23:13:00,389 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-11-20 23:13:00,390 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 23:13:00,390 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 23:13:00,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-11-20 23:13:00,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-11-20 23:13:00,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:13:00,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 23:13:00,391 INFO L130 BoogieDeclarations]: Found specification of procedure set_rate [2021-11-20 23:13:00,391 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rate [2021-11-20 23:13:00,391 INFO L130 BoogieDeclarations]: Found specification of procedure free_rbufs [2021-11-20 23:13:00,391 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rbufs [2021-11-20 23:13:00,391 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-20 23:13:00,391 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-20 23:13:00,392 INFO L130 BoogieDeclarations]: Found specification of procedure async_mode [2021-11-20 23:13:00,392 INFO L138 BoogieDeclarations]: Found implementation of procedure async_mode [2021-11-20 23:13:00,392 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl [2021-11-20 23:13:00,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl [2021-11-20 23:13:00,392 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-11-20 23:13:00,393 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-11-20 23:13:00,393 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-20 23:13:00,393 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-20 23:13:00,394 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-20 23:13:00,394 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-20 23:13:00,394 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-20 23:13:00,395 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-20 23:13:00,395 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2021-11-20 23:13:00,395 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2021-11-20 23:13:00,395 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 23:13:00,395 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 23:13:00,396 INFO L130 BoogieDeclarations]: Found specification of procedure rx_stop [2021-11-20 23:13:00,396 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_stop [2021-11-20 23:13:00,396 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 23:13:00,397 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 23:13:00,397 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-20 23:13:00,397 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-20 23:13:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure update_tx_timer [2021-11-20 23:13:00,398 INFO L138 BoogieDeclarations]: Found implementation of procedure update_tx_timer [2021-11-20 23:13:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bufs [2021-11-20 23:13:00,398 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bufs [2021-11-20 23:13:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 23:13:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-20 23:13:00,399 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-20 23:13:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure msc_set_vcr [2021-11-20 23:13:00,399 INFO L138 BoogieDeclarations]: Found implementation of procedure msc_set_vcr [2021-11-20 23:13:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure isr_txeom [2021-11-20 23:13:00,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_txeom [2021-11-20 23:13:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 23:13:00,400 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 23:13:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure setup_timer_key [2021-11-20 23:13:00,400 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_timer_key [2021-11-20 23:13:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-20 23:13:00,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-20 23:13:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure rdma_reset [2021-11-20 23:13:00,404 INFO L138 BoogieDeclarations]: Found implementation of procedure rdma_reset [2021-11-20 23:13:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 23:13:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2021-11-20 23:13:00,405 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hung_up_p [2021-11-20 23:13:00,406 INFO L130 BoogieDeclarations]: Found specification of procedure release_resources [2021-11-20 23:13:00,407 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resources [2021-11-20 23:13:00,407 INFO L130 BoogieDeclarations]: Found specification of procedure slgt_cleanup [2021-11-20 23:13:00,407 INFO L138 BoogieDeclarations]: Found implementation of procedure slgt_cleanup [2021-11-20 23:13:00,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:13:00,414 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-20 23:13:00,414 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-20 23:13:00,414 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 23:13:00,414 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 23:13:00,414 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-11-20 23:13:00,415 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-11-20 23:13:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure tx_set_idle [2021-11-20 23:13:00,415 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_set_idle [2021-11-20 23:13:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-20 23:13:00,415 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-20 23:13:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 23:13:00,416 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 23:13:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure enable_loopback [2021-11-20 23:13:00,416 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_loopback [2021-11-20 23:13:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 23:13:00,416 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 23:13:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 23:13:00,416 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 23:13:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure tx_load [2021-11-20 23:13:00,417 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_load [2021-11-20 23:13:00,417 INFO L130 BoogieDeclarations]: Found specification of procedure wr_reg32 [2021-11-20 23:13:00,417 INFO L138 BoogieDeclarations]: Found implementation of procedure wr_reg32 [2021-11-20 23:13:00,417 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_tx_done [2021-11-20 23:13:00,417 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_tx_done [2021-11-20 23:13:00,417 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-20 23:13:00,417 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-20 23:13:00,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:13:00,418 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-20 23:13:00,418 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-20 23:13:00,418 INFO L130 BoogieDeclarations]: Found specification of procedure program_hw [2021-11-20 23:13:00,418 INFO L138 BoogieDeclarations]: Found implementation of procedure program_hw [2021-11-20 23:13:00,418 INFO L130 BoogieDeclarations]: Found specification of procedure rd_reg32 [2021-11-20 23:13:00,418 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_reg32 [2021-11-20 23:13:00,419 INFO L130 BoogieDeclarations]: Found specification of procedure isr_rxdata [2021-11-20 23:13:00,419 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_rxdata [2021-11-20 23:13:00,419 INFO L130 BoogieDeclarations]: Found specification of procedure reset_port [2021-11-20 23:13:00,419 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_port [2021-11-20 23:13:00,419 INFO L130 BoogieDeclarations]: Found specification of procedure tbuf_bytes [2021-11-20 23:13:00,419 INFO L138 BoogieDeclarations]: Found implementation of procedure tbuf_bytes [2021-11-20 23:13:00,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:13:00,419 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2021-11-20 23:13:00,420 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2021-11-20 23:13:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-20 23:13:00,420 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-20 23:13:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:13:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2021-11-20 23:13:00,420 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2021-11-20 23:13:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure flush_buffer [2021-11-20 23:13:00,421 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_buffer [2021-11-20 23:13:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:13:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 23:13:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure wr_reg16 [2021-11-20 23:13:00,421 INFO L138 BoogieDeclarations]: Found implementation of procedure wr_reg16 [2021-11-20 23:13:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure tx_release [2021-11-20 23:13:00,421 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_release [2021-11-20 23:13:00,422 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-20 23:13:00,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-20 23:13:00,422 INFO L130 BoogieDeclarations]: Found specification of procedure rd_reg16 [2021-11-20 23:13:00,422 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_reg16 [2021-11-20 23:13:00,422 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-20 23:13:00,422 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-20 23:13:00,422 INFO L130 BoogieDeclarations]: Found specification of procedure sync_mode [2021-11-20 23:13:00,423 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_mode [2021-11-20 23:13:00,423 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown [2021-11-20 23:13:00,423 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown [2021-11-20 23:13:00,423 INFO L130 BoogieDeclarations]: Found specification of procedure send_xchar [2021-11-20 23:13:00,423 INFO L138 BoogieDeclarations]: Found implementation of procedure send_xchar [2021-11-20 23:13:00,423 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 23:13:00,423 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 23:13:00,424 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2021-11-20 23:13:00,424 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2021-11-20 23:13:00,424 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-20 23:13:00,424 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-20 23:13:00,424 INFO L130 BoogieDeclarations]: Found specification of procedure free_tmp_rbuf [2021-11-20 23:13:00,424 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tmp_rbuf [2021-11-20 23:13:00,424 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-20 23:13:00,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-20 23:13:00,425 INFO L130 BoogieDeclarations]: Found specification of procedure tdma_reset [2021-11-20 23:13:00,425 INFO L138 BoogieDeclarations]: Found implementation of procedure tdma_reset [2021-11-20 23:13:00,425 INFO L130 BoogieDeclarations]: Found specification of procedure get_signals [2021-11-20 23:13:00,425 INFO L138 BoogieDeclarations]: Found implementation of procedure get_signals [2021-11-20 23:13:00,425 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-20 23:13:00,425 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-20 23:13:00,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:13:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure rx_start [2021-11-20 23:13:00,426 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_start [2021-11-20 23:13:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block [2021-11-20 23:13:00,426 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block [2021-11-20 23:13:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure wr_reg8 [2021-11-20 23:13:00,426 INFO L138 BoogieDeclarations]: Found implementation of procedure wr_reg8 [2021-11-20 23:13:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure sanity_check [2021-11-20 23:13:00,427 INFO L138 BoogieDeclarations]: Found implementation of procedure sanity_check [2021-11-20 23:13:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:13:00,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:13:01,427 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:13:01,432 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:13:01,706 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:13:01,757 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2021-11-20 23:13:01,758 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2021-11-20 23:13:02,012 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-11-20 23:13:02,012 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-11-20 23:13:02,649 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:13:02,765 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2021-11-20 23:13:02,765 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2021-11-20 23:13:03,060 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:13:03,063 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:13:03,195 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume !false; [2021-11-20 23:13:03,195 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##60: assume false; [2021-11-20 23:13:03,196 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##132: assume !false; [2021-11-20 23:13:03,196 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##131: assume false; [2021-11-20 23:13:03,375 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:13:18,594 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10940: SUMMARY for call modem_input_wait_#t~ret1364#1.base, modem_input_wait_#t~ret1364#1.offset := get_current(); srcloc: null [2021-11-20 23:13:18,595 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10940-1: modem_input_wait_~tmp___8~2#1.base, modem_input_wait_~tmp___8~2#1.offset := modem_input_wait_#t~ret1364#1.base, modem_input_wait_#t~ret1364#1.offset;havoc modem_input_wait_#t~ret1364#1.base, modem_input_wait_#t~ret1364#1.offset;modem_input_wait_~__ptr___3~1#1.base, modem_input_wait_~__ptr___3~1#1.offset := modem_input_wait_~tmp___8~2#1.base, modem_input_wait_~tmp___8~2#1.offset; [2021-11-20 23:13:18,595 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10882: SUMMARY for call modem_input_wait_#t~ret1333#1.base, modem_input_wait_#t~ret1333#1.offset := get_current(); srcloc: null [2021-11-20 23:13:18,595 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10882-1: modem_input_wait_~tmp___1~21#1.base, modem_input_wait_~tmp___1~21#1.offset := modem_input_wait_#t~ret1333#1.base, modem_input_wait_#t~ret1333#1.offset;havoc modem_input_wait_#t~ret1333#1.base, modem_input_wait_#t~ret1333#1.offset;modem_input_wait_~__ptr~3#1.base, modem_input_wait_~__ptr~3#1.offset := modem_input_wait_~tmp___1~21#1.base, modem_input_wait_~tmp___1~21#1.offset; [2021-11-20 23:13:18,595 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##265: assume !false; [2021-11-20 23:13:18,595 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##264: assume false; [2021-11-20 23:13:18,595 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##276: assume false; [2021-11-20 23:13:18,595 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##277: assume !false; [2021-11-20 23:13:18,596 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##232: assume false; [2021-11-20 23:13:18,596 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##233: assume !false; [2021-11-20 23:13:18,596 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##241: assume !false; [2021-11-20 23:13:18,596 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##240: assume false; [2021-11-20 23:13:18,596 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11037-1: modem_input_wait_~tmp___12~1#1.base, modem_input_wait_~tmp___12~1#1.offset := modem_input_wait_#t~ret1407#1.base, modem_input_wait_#t~ret1407#1.offset;havoc modem_input_wait_#t~ret1407#1.base, modem_input_wait_#t~ret1407#1.offset;modem_input_wait_~__ptr___7~1#1.base, modem_input_wait_~__ptr___7~1#1.offset := modem_input_wait_~tmp___12~1#1.base, modem_input_wait_~tmp___12~1#1.offset; [2021-11-20 23:13:18,596 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11037: SUMMARY for call modem_input_wait_#t~ret1407#1.base, modem_input_wait_#t~ret1407#1.offset := get_current(); srcloc: null [2021-11-20 23:13:18,596 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##304: assume !false; [2021-11-20 23:13:18,596 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##303: assume false; [2021-11-20 23:13:18,596 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10655-1: remove_cond_wait_~tmp~91#1.base, remove_cond_wait_~tmp~91#1.offset := remove_cond_wait_#t~ret1268#1.base, remove_cond_wait_#t~ret1268#1.offset;havoc remove_cond_wait_#t~ret1268#1.base, remove_cond_wait_#t~ret1268#1.offset;remove_cond_wait_~__ptr~2#1.base, remove_cond_wait_~__ptr~2#1.offset := remove_cond_wait_~tmp~91#1.base, remove_cond_wait_~tmp~91#1.offset; [2021-11-20 23:13:18,597 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10655: SUMMARY for call remove_cond_wait_#t~ret1268#1.base, remove_cond_wait_#t~ret1268#1.offset := get_current(); srcloc: null [2021-11-20 23:13:18,597 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10195: SUMMARY for call wait_mgsl_event_#t~ret1204#1.base, wait_mgsl_event_#t~ret1204#1.offset := get_current(); srcloc: null [2021-11-20 23:13:18,597 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10195-1: wait_mgsl_event_~tmp___26~0#1.base, wait_mgsl_event_~tmp___26~0#1.offset := wait_mgsl_event_#t~ret1204#1.base, wait_mgsl_event_#t~ret1204#1.offset;havoc wait_mgsl_event_#t~ret1204#1.base, wait_mgsl_event_#t~ret1204#1.offset;wait_mgsl_event_~__ptr___7~0#1.base, wait_mgsl_event_~__ptr___7~0#1.offset := wait_mgsl_event_~tmp___26~0#1.base, wait_mgsl_event_~tmp___26~0#1.offset; [2021-11-20 23:13:18,597 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10592: SUMMARY for call add_cond_wait_#t~ret1263#1.base, add_cond_wait_#t~ret1263#1.offset := get_current(); srcloc: null [2021-11-20 23:13:18,597 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10592-1: add_cond_wait_~tmp~90#1.base, add_cond_wait_~tmp~90#1.offset := add_cond_wait_#t~ret1263#1.base, add_cond_wait_#t~ret1263#1.offset;havoc add_cond_wait_#t~ret1263#1.base, add_cond_wait_#t~ret1263#1.offset;add_cond_wait_~__ptr~1#1.base, add_cond_wait_~__ptr~1#1.offset := add_cond_wait_~tmp~90#1.base, add_cond_wait_~tmp~90#1.offset; [2021-11-20 23:13:18,598 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10064: SUMMARY for call wait_mgsl_event_#t~ret1129#1.base, wait_mgsl_event_#t~ret1129#1.offset := get_current(); srcloc: null [2021-11-20 23:13:18,598 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10064-1: wait_mgsl_event_~tmp___13~0#1.base, wait_mgsl_event_~tmp___13~0#1.offset := wait_mgsl_event_#t~ret1129#1.base, wait_mgsl_event_#t~ret1129#1.offset;havoc wait_mgsl_event_#t~ret1129#1.base, wait_mgsl_event_#t~ret1129#1.offset;wait_mgsl_event_~__ptr___3~0#1.base, wait_mgsl_event_~__ptr___3~0#1.offset := wait_mgsl_event_~tmp___13~0#1.base, wait_mgsl_event_~tmp___13~0#1.offset; [2021-11-20 23:13:18,598 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false; [2021-11-20 23:13:18,598 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2021-11-20 23:13:18,598 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##69: assume !false; [2021-11-20 23:13:18,598 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##68: assume false; [2021-11-20 23:13:18,598 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##195: assume false; [2021-11-20 23:13:18,598 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##196: assume !false; [2021-11-20 23:13:18,598 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume !false; [2021-11-20 23:13:18,598 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume false; [2021-11-20 23:13:18,599 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##139: assume !false; [2021-11-20 23:13:18,599 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##138: assume false; [2021-11-20 23:13:18,599 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10004: SUMMARY for call wait_mgsl_event_#t~ret1090#1.base, wait_mgsl_event_#t~ret1090#1.offset := get_current(); srcloc: null [2021-11-20 23:13:18,599 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10004-1: wait_mgsl_event_~tmp___6~1#1.base, wait_mgsl_event_~tmp___6~1#1.offset := wait_mgsl_event_#t~ret1090#1.base, wait_mgsl_event_#t~ret1090#1.offset;havoc wait_mgsl_event_#t~ret1090#1.base, wait_mgsl_event_#t~ret1090#1.offset;wait_mgsl_event_~__ptr~0#1.base, wait_mgsl_event_~__ptr~0#1.offset := wait_mgsl_event_~tmp___6~1#1.base, wait_mgsl_event_~tmp___6~1#1.offset; [2021-11-20 23:13:18,599 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##389: assume false; [2021-11-20 23:13:18,599 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##151: assume !false; [2021-11-20 23:13:18,599 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##150: assume false; [2021-11-20 23:13:18,599 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##390: assume !false; [2021-11-20 23:13:18,599 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##155: assume false; [2021-11-20 23:13:18,599 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##156: assume !false; [2021-11-20 23:13:18,600 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume false; [2021-11-20 23:13:18,600 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume !false; [2021-11-20 23:13:18,600 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##327: assume !false; [2021-11-20 23:13:18,600 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##326: assume false; [2021-11-20 23:13:18,803 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:13:18,807 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:13:18,817 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:13:18,817 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:13:18,818 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:13:31,614 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##289: assume !false;call ULTIMATE.dealloc(hdlcdev_ioctl_~#new_line~0#1.base, hdlcdev_ioctl_~#new_line~0#1.offset);havoc hdlcdev_ioctl_~#new_line~0#1.base, hdlcdev_ioctl_~#new_line~0#1.offset; [2021-11-20 23:13:31,614 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##288: assume false; [2021-11-20 23:13:31,614 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume !false; [2021-11-20 23:13:31,614 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##300: assume false; [2021-11-20 23:13:31,614 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##323: assume !false; [2021-11-20 23:13:31,614 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##322: assume false; [2021-11-20 23:13:31,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11392: SUMMARY for call block_til_ready_#t~ret1467#1.base, block_til_ready_#t~ret1467#1.offset := get_current(); srcloc: null [2021-11-20 23:13:31,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11392-1: block_til_ready_~tmp___9~2#1.base, block_til_ready_~tmp___9~2#1.offset := block_til_ready_#t~ret1467#1.base, block_til_ready_#t~ret1467#1.offset;havoc block_til_ready_#t~ret1467#1.base, block_til_ready_#t~ret1467#1.offset;block_til_ready_~__ptr___3~2#1.base, block_til_ready_~__ptr___3~2#1.offset := block_til_ready_~tmp___9~2#1.base, block_til_ready_~tmp___9~2#1.offset; [2021-11-20 23:13:31,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##399: assume false; [2021-11-20 23:13:31,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##423: assume false; [2021-11-20 23:13:31,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##424: assume !false; [2021-11-20 23:13:31,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##400: assume !false; [2021-11-20 23:13:31,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11302-1: block_til_ready_~tmp___2~14#1.base, block_til_ready_~tmp___2~14#1.offset := block_til_ready_#t~ret1453#1.base, block_til_ready_#t~ret1453#1.offset;havoc block_til_ready_#t~ret1453#1.base, block_til_ready_#t~ret1453#1.offset;block_til_ready_~__ptr~4#1.base, block_til_ready_~__ptr~4#1.offset := block_til_ready_~tmp___2~14#1.base, block_til_ready_~tmp___2~14#1.offset; [2021-11-20 23:13:31,616 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11302: SUMMARY for call block_til_ready_#t~ret1453#1.base, block_til_ready_#t~ret1453#1.offset := get_current(); srcloc: null [2021-11-20 23:13:31,616 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume !false; [2021-11-20 23:13:31,616 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##77: assume false; [2021-11-20 23:13:31,616 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##133: assume !false; [2021-11-20 23:13:31,616 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##132: assume false; [2021-11-20 23:13:31,828 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:13:34,631 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:13:34,632 INFO L301 CfgBuilder]: Removed 17 assume(true) statements. [2021-11-20 23:13:34,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:13:34 BoogieIcfgContainer [2021-11-20 23:13:34,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:13:34,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:13:34,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:13:34,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:13:34,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:12:55" (1/3) ... [2021-11-20 23:13:34,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc18c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:13:34, skipping insertion in model container [2021-11-20 23:13:34,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (2/3) ... [2021-11-20 23:13:34,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc18c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:13:34, skipping insertion in model container [2021-11-20 23:13:34,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:13:34" (3/3) ... [2021-11-20 23:13:34,650 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-tty-synclink_gt.ko.cil.out.i [2021-11-20 23:13:34,662 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:13:34,663 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:13:34,732 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:13:34,738 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 23:13:34,739 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:13:34,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 1955 states, 1238 states have (on average 1.4030694668820678) internal successors, (1737), 1313 states have internal predecessors, (1737), 627 states have call successors, (627), 98 states have call predecessors, (627), 98 states have return successors, (627), 607 states have call predecessors, (627), 627 states have call successors, (627) [2021-11-20 23:13:34,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 23:13:34,828 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:34,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:34,830 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:13:34,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:34,839 INFO L85 PathProgramCache]: Analyzing trace with hash -12841163, now seen corresponding path program 1 times [2021-11-20 23:13:34,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:34,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074359783] [2021-11-20 23:13:34,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:34,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:35,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:13:35,440 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:35,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074359783] [2021-11-20 23:13:35,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074359783] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:35,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:35,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:13:35,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724671704] [2021-11-20 23:13:35,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:35,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:13:35,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:35,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:13:35,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:13:35,493 INFO L87 Difference]: Start difference. First operand has 1955 states, 1238 states have (on average 1.4030694668820678) internal successors, (1737), 1313 states have internal predecessors, (1737), 627 states have call successors, (627), 98 states have call predecessors, (627), 98 states have return successors, (627), 607 states have call predecessors, (627), 627 states have call successors, (627) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:13:37,626 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:13:39,191 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:13:42,453 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:13:44,512 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:13:49,999 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:13:51,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:51,150 INFO L93 Difference]: Finished difference Result 5792 states and 8899 transitions. [2021-11-20 23:13:51,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:13:51,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-11-20 23:13:51,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:51,223 INFO L225 Difference]: With dead ends: 5792 [2021-11-20 23:13:51,224 INFO L226 Difference]: Without dead ends: 3790 [2021-11-20 23:13:51,250 INFO L932 BasicCegarLoop]: 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 [2021-11-20 23:13:51,256 INFO L933 BasicCegarLoop]: 3685 mSDtfsCounter, 2868 mSDsluCounter, 2951 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2870 SdHoareTripleChecker+Valid, 6264 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:51,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2870 Valid, 6264 Invalid, 871 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 866 Invalid, 3 Unknown, 0 Unchecked, 15.2s Time] [2021-11-20 23:13:51,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3790 states. [2021-11-20 23:13:51,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3790 to 3785. [2021-11-20 23:13:51,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3785 states, 2382 states have (on average 1.3950461796809404) internal successors, (3323), 2543 states have internal predecessors, (3323), 1213 states have call successors, (1213), 190 states have call predecessors, (1213), 189 states have return successors, (1213), 1170 states have call predecessors, (1213), 1211 states have call successors, (1213) [2021-11-20 23:13:51,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3785 states to 3785 states and 5749 transitions. [2021-11-20 23:13:51,985 INFO L78 Accepts]: Start accepts. Automaton has 3785 states and 5749 transitions. Word has length 12 [2021-11-20 23:13:51,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:51,986 INFO L470 AbstractCegarLoop]: Abstraction has 3785 states and 5749 transitions. [2021-11-20 23:13:51,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:13:51,988 INFO L276 IsEmpty]: Start isEmpty. Operand 3785 states and 5749 transitions. [2021-11-20 23:13:51,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-20 23:13:51,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:51,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:51,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:13:51,993 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:13:51,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:51,997 INFO L85 PathProgramCache]: Analyzing trace with hash 283312242, now seen corresponding path program 1 times [2021-11-20 23:13:51,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:51,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134347664] [2021-11-20 23:13:51,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:51,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:52,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:13:52,297 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:52,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134347664] [2021-11-20 23:13:52,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134347664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:52,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:52,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:52,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960947159] [2021-11-20 23:13:52,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:52,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:52,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:52,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:52,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:52,301 INFO L87 Difference]: Start difference. First operand 3785 states and 5749 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:13:54,382 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:13:56,872 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:13:59,212 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:14:02,728 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:14:04,761 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:14:06,041 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:14:10,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:14:13,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:14:15,728 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:14:16,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:16,480 INFO L93 Difference]: Finished difference Result 6020 states and 9426 transitions. [2021-11-20 23:14:16,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:14:16,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-11-20 23:14:16,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:16,540 INFO L225 Difference]: With dead ends: 6020 [2021-11-20 23:14:16,540 INFO L226 Difference]: Without dead ends: 6015 [2021-11-20 23:14:16,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:14:16,548 INFO L933 BasicCegarLoop]: 3910 mSDtfsCounter, 1522 mSDsluCounter, 6715 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 523 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1785 SdHoareTripleChecker+Valid, 9875 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:16,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1785 Valid, 9875 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [523 Valid, 1265 Invalid, 6 Unknown, 0 Unchecked, 23.8s Time] [2021-11-20 23:14:16,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6015 states. [2021-11-20 23:14:16,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6015 to 3787. [2021-11-20 23:14:16,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3787 states, 2384 states have (on average 1.394714765100671) internal successors, (3325), 2545 states have internal predecessors, (3325), 1213 states have call successors, (1213), 190 states have call predecessors, (1213), 189 states have return successors, (1213), 1170 states have call predecessors, (1213), 1211 states have call successors, (1213) [2021-11-20 23:14:16,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3787 states to 3787 states and 5751 transitions. [2021-11-20 23:14:16,886 INFO L78 Accepts]: Start accepts. Automaton has 3787 states and 5751 transitions. Word has length 14 [2021-11-20 23:14:16,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:16,887 INFO L470 AbstractCegarLoop]: Abstraction has 3787 states and 5751 transitions. [2021-11-20 23:14:16,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:14:16,887 INFO L276 IsEmpty]: Start isEmpty. Operand 3787 states and 5751 transitions. [2021-11-20 23:14:16,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-20 23:14:16,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:16,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:14:16,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:14:16,898 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:14:16,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:16,899 INFO L85 PathProgramCache]: Analyzing trace with hash -983709737, now seen corresponding path program 1 times [2021-11-20 23:14:16,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:16,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971421766] [2021-11-20 23:14:16,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:16,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:17,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:14:17,189 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:17,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971421766] [2021-11-20 23:14:17,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971421766] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:17,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:17,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:14:17,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220330726] [2021-11-20 23:14:17,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:17,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:14:17,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:17,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:14:17,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:14:17,193 INFO L87 Difference]: Start difference. First operand 3787 states and 5751 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 23:14:19,255 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:14:22,399 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:14:25,949 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:14:28,098 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:14:30,210 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:14:34,450 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:14:37,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:14:40,955 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:14:42,998 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:14:45,783 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:14:53,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:53,065 INFO L93 Difference]: Finished difference Result 11379 states and 17295 transitions. [2021-11-20 23:14:53,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:14:53,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2021-11-20 23:14:53,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:53,150 INFO L225 Difference]: With dead ends: 11379 [2021-11-20 23:14:53,150 INFO L226 Difference]: Without dead ends: 9437 [2021-11-20 23:14:53,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:14:53,174 INFO L933 BasicCegarLoop]: 5882 mSDtfsCounter, 5876 mSDsluCounter, 4966 mSDsCounter, 0 mSdLazyCounter, 4068 mSolverCounterSat, 6 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5880 SdHoareTripleChecker+Valid, 10049 SdHoareTripleChecker+Invalid, 4084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4068 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:53,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5880 Valid, 10049 Invalid, 4084 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 4068 Invalid, 10 Unknown, 0 Unchecked, 35.3s Time] [2021-11-20 23:14:53,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9437 states. [2021-11-20 23:14:53,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9437 to 9422. [2021-11-20 23:14:53,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9422 states, 5929 states have (on average 1.3958509023444088) internal successors, (8276), 6329 states have internal predecessors, (8276), 3023 states have call successors, (3023), 471 states have call predecessors, (3023), 469 states have return successors, (3030), 2913 states have call predecessors, (3030), 3021 states have call successors, (3030) [2021-11-20 23:14:53,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9422 states to 9422 states and 14329 transitions. [2021-11-20 23:14:53,990 INFO L78 Accepts]: Start accepts. Automaton has 9422 states and 14329 transitions. Word has length 22 [2021-11-20 23:14:53,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:53,991 INFO L470 AbstractCegarLoop]: Abstraction has 9422 states and 14329 transitions. [2021-11-20 23:14:53,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 23:14:53,992 INFO L276 IsEmpty]: Start isEmpty. Operand 9422 states and 14329 transitions. [2021-11-20 23:14:53,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-20 23:14:53,996 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:53,997 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:14:53,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 23:14:53,997 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:14:53,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:53,998 INFO L85 PathProgramCache]: Analyzing trace with hash -2038800537, now seen corresponding path program 1 times [2021-11-20 23:14:53,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:53,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997028208] [2021-11-20 23:14:53,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:53,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:54,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:54,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:14:54,218 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:54,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997028208] [2021-11-20 23:14:54,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997028208] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:54,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:54,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:14:54,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455270647] [2021-11-20 23:14:54,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:54,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:14:54,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:54,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:14:54,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:14:54,221 INFO L87 Difference]: Start difference. First operand 9422 states and 14329 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 23:14:56,282 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:14:57,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:14:59,916 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:15:02,010 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:15:04,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:15:06,223 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:15:08,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:15:10,884 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:15:12,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:15:12,205 INFO L93 Difference]: Finished difference Result 20776 states and 31596 transitions. [2021-11-20 23:15:12,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:15:12,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-11-20 23:15:12,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:15:12,333 INFO L225 Difference]: With dead ends: 20776 [2021-11-20 23:15:12,333 INFO L226 Difference]: Without dead ends: 15025 [2021-11-20 23:15:12,372 INFO L932 BasicCegarLoop]: 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 [2021-11-20 23:15:12,373 INFO L933 BasicCegarLoop]: 3342 mSDtfsCounter, 2875 mSDsluCounter, 2936 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2877 SdHoareTripleChecker+Valid, 5909 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:15:12,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2877 Valid, 5909 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 786 Invalid, 6 Unknown, 0 Unchecked, 17.6s Time] [2021-11-20 23:15:12,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15025 states. [2021-11-20 23:15:13,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15025 to 15010. [2021-11-20 23:15:13,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15010 states, 9445 states have (on average 1.3952355743779778) internal successors, (13178), 10087 states have internal predecessors, (13178), 4810 states have call successors, (4810), 756 states have call predecessors, (4810), 754 states have return successors, (4823), 4635 states have call predecessors, (4823), 4808 states have call successors, (4823) [2021-11-20 23:15:13,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15010 states to 15010 states and 22811 transitions. [2021-11-20 23:15:13,467 INFO L78 Accepts]: Start accepts. Automaton has 15010 states and 22811 transitions. Word has length 25 [2021-11-20 23:15:13,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:15:13,467 INFO L470 AbstractCegarLoop]: Abstraction has 15010 states and 22811 transitions. [2021-11-20 23:15:13,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 23:15:13,468 INFO L276 IsEmpty]: Start isEmpty. Operand 15010 states and 22811 transitions. [2021-11-20 23:15:13,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-20 23:15:13,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:15:13,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:15:13,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:15:13,474 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:15:13,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:15:13,474 INFO L85 PathProgramCache]: Analyzing trace with hash -181817682, now seen corresponding path program 1 times [2021-11-20 23:15:13,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:15:13,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015614020] [2021-11-20 23:15:13,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:15:13,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:15:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:15:13,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:15:13,600 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:15:13,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015614020] [2021-11-20 23:15:13,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015614020] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:15:13,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:15:13,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:15:13,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584224631] [2021-11-20 23:15:13,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:15:13,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:15:13,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:15:13,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:15:13,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:15:13,603 INFO L87 Difference]: Start difference. First operand 15010 states and 22811 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 23:15:15,667 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:15:16,992 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:15:19,017 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:15:20,745 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:15:23,042 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:15:25,832 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:15:29,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:15:29,446 INFO L93 Difference]: Finished difference Result 20790 states and 31565 transitions. [2021-11-20 23:15:29,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:15:29,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2021-11-20 23:15:29,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:15:29,502 INFO L225 Difference]: With dead ends: 20790 [2021-11-20 23:15:29,502 INFO L226 Difference]: Without dead ends: 11349 [2021-11-20 23:15:29,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:15:29,553 INFO L933 BasicCegarLoop]: 2582 mSDtfsCounter, 1 mSDsluCounter, 5908 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7743 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:15:29,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 7743 Invalid, 1133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1129 Invalid, 4 Unknown, 0 Unchecked, 15.5s Time] [2021-11-20 23:15:29,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11349 states. [2021-11-20 23:15:30,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11349 to 11349. [2021-11-20 23:15:30,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11349 states, 7139 states have (on average 1.3947331559041882) internal successors, (9957), 7624 states have internal predecessors, (9957), 3638 states have call successors, (3638), 573 states have call predecessors, (3638), 571 states have return successors, (3647), 3506 states have call predecessors, (3647), 3636 states have call successors, (3647) [2021-11-20 23:15:30,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11349 states to 11349 states and 17242 transitions. [2021-11-20 23:15:30,116 INFO L78 Accepts]: Start accepts. Automaton has 11349 states and 17242 transitions. Word has length 38 [2021-11-20 23:15:30,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:15:30,117 INFO L470 AbstractCegarLoop]: Abstraction has 11349 states and 17242 transitions. [2021-11-20 23:15:30,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 23:15:30,117 INFO L276 IsEmpty]: Start isEmpty. Operand 11349 states and 17242 transitions. [2021-11-20 23:15:30,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-20 23:15:30,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:15:30,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:15:30,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 23:15:30,124 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:15:30,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:15:30,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1528956966, now seen corresponding path program 1 times [2021-11-20 23:15:30,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:15:30,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004882906] [2021-11-20 23:15:30,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:15:30,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:15:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:15:30,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:15:30,485 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:15:30,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004882906] [2021-11-20 23:15:30,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004882906] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:15:30,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:15:30,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:15:30,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297562667] [2021-11-20 23:15:30,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:15:30,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:15:30,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:15:30,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:15:30,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:15:30,487 INFO L87 Difference]: Start difference. First operand 11349 states and 17242 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 23:15:32,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:15:35,574 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:15:38,868 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:15:40,008 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:15:42,257 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:15:45,670 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:15:49,638 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:15:50,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:15:50,933 INFO L93 Difference]: Finished difference Result 25006 states and 38311 transitions. [2021-11-20 23:15:50,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:15:50,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 44 [2021-11-20 23:15:50,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:15:51,041 INFO L225 Difference]: With dead ends: 25006 [2021-11-20 23:15:51,041 INFO L226 Difference]: Without dead ends: 19159 [2021-11-20 23:15:51,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:15:51,087 INFO L933 BasicCegarLoop]: 3646 mSDtfsCounter, 3614 mSDsluCounter, 5442 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3884 SdHoareTripleChecker+Valid, 8337 SdHoareTripleChecker+Invalid, 1999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:15:51,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3884 Valid, 8337 Invalid, 1999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1989 Invalid, 4 Unknown, 0 Unchecked, 19.8s Time] [2021-11-20 23:15:51,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19159 states. [2021-11-20 23:15:52,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19159 to 16860. [2021-11-20 23:15:52,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16860 states, 10611 states have (on average 1.3950617283950617) internal successors, (14803), 11327 states have internal predecessors, (14803), 5401 states have call successors, (5401), 849 states have call predecessors, (5401), 847 states have return successors, (5416), 5209 states have call predecessors, (5416), 5399 states have call successors, (5416) [2021-11-20 23:15:52,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16860 states to 16860 states and 25620 transitions. [2021-11-20 23:15:52,278 INFO L78 Accepts]: Start accepts. Automaton has 16860 states and 25620 transitions. Word has length 44 [2021-11-20 23:15:52,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:15:52,280 INFO L470 AbstractCegarLoop]: Abstraction has 16860 states and 25620 transitions. [2021-11-20 23:15:52,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 23:15:52,281 INFO L276 IsEmpty]: Start isEmpty. Operand 16860 states and 25620 transitions. [2021-11-20 23:15:52,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-20 23:15:52,288 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:15:52,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:15:52,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 23:15:52,288 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:15:52,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:15:52,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1641653114, now seen corresponding path program 1 times [2021-11-20 23:15:52,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:15:52,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691127381] [2021-11-20 23:15:52,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:15:52,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:15:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 23:15:52,583 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 23:15:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 23:15:53,270 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-20 23:15:53,271 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 23:15:53,272 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 23:15:53,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 23:15:53,277 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:15:53,280 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 23:15:53,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:15:53 BoogieIcfgContainer [2021-11-20 23:15:53,424 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 23:15:53,425 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 23:15:53,425 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 23:15:53,425 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 23:15:53,426 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:13:34" (3/4) ... [2021-11-20 23:15:53,429 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 23:15:53,429 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 23:15:53,430 INFO L158 Benchmark]: Toolchain (without parser) took 178328.88ms. Allocated memory was 104.9MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 59.3MB in the beginning and 565.5MB in the end (delta: -506.2MB). Peak memory consumption was 528.3MB. Max. memory is 16.1GB. [2021-11-20 23:15:53,430 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 104.9MB. Free memory is still 58.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:15:53,430 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4108.00ms. Allocated memory was 104.9MB in the beginning and 302.0MB in the end (delta: 197.1MB). Free memory was 59.1MB in the beginning and 211.1MB in the end (delta: -152.0MB). Peak memory consumption was 105.7MB. Max. memory is 16.1GB. [2021-11-20 23:15:53,431 INFO L158 Benchmark]: Boogie Procedure Inliner took 450.96ms. Allocated memory is still 302.0MB. Free memory was 211.1MB in the beginning and 161.8MB in the end (delta: 49.3MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2021-11-20 23:15:53,432 INFO L158 Benchmark]: Boogie Preprocessor took 613.22ms. Allocated memory is still 302.0MB. Free memory was 161.8MB in the beginning and 187.5MB in the end (delta: -25.7MB). Peak memory consumption was 74.4MB. Max. memory is 16.1GB. [2021-11-20 23:15:53,433 INFO L158 Benchmark]: RCFGBuilder took 34360.11ms. Allocated memory was 302.0MB in the beginning and 947.9MB in the end (delta: 645.9MB). Free memory was 187.5MB in the beginning and 505.9MB in the end (delta: -318.5MB). Peak memory consumption was 560.8MB. Max. memory is 16.1GB. [2021-11-20 23:15:53,433 INFO L158 Benchmark]: TraceAbstraction took 138781.46ms. Allocated memory was 947.9MB in the beginning and 1.1GB in the end (delta: 190.8MB). Free memory was 504.9MB in the beginning and 565.5MB in the end (delta: -60.6MB). Peak memory consumption was 133.4MB. Max. memory is 16.1GB. [2021-11-20 23:15:53,433 INFO L158 Benchmark]: Witness Printer took 4.27ms. Allocated memory is still 1.1GB. Free memory is still 565.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:15:53,435 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 104.9MB. Free memory is still 58.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4108.00ms. Allocated memory was 104.9MB in the beginning and 302.0MB in the end (delta: 197.1MB). Free memory was 59.1MB in the beginning and 211.1MB in the end (delta: -152.0MB). Peak memory consumption was 105.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 450.96ms. Allocated memory is still 302.0MB. Free memory was 211.1MB in the beginning and 161.8MB in the end (delta: 49.3MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 613.22ms. Allocated memory is still 302.0MB. Free memory was 161.8MB in the beginning and 187.5MB in the end (delta: -25.7MB). Peak memory consumption was 74.4MB. Max. memory is 16.1GB. * RCFGBuilder took 34360.11ms. Allocated memory was 302.0MB in the beginning and 947.9MB in the end (delta: 645.9MB). Free memory was 187.5MB in the beginning and 505.9MB in the end (delta: -318.5MB). Peak memory consumption was 560.8MB. Max. memory is 16.1GB. * TraceAbstraction took 138781.46ms. Allocated memory was 947.9MB in the beginning and 1.1GB in the end (delta: 190.8MB). Free memory was 504.9MB in the beginning and 565.5MB in the end (delta: -60.6MB). Peak memory consumption was 133.4MB. Max. memory is 16.1GB. * Witness Printer took 4.27ms. Allocated memory is still 1.1GB. Free memory is still 565.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 14623]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 12224. Possible FailurePath: [L5747] static char *driver_name = (char *)"SyncLink GT"; [L5748] static char *tty_driver_name = (char *)"synclink_gt"; [L5749] static char *tty_dev_prefix = (char *)"ttySLG"; [L5750-L5754] static struct pci_device_id pci_table[5U] = { {5056U, 112U, 4294967295U, 4294967295U, 0U, 0U, 0UL}, {5056U, 160U, 4294967295U, 4294967295U, 0U, 0U, 0UL}, {5056U, 128U, 4294967295U, 4294967295U, 0U, 0U, 0UL}, {5056U, 144U, 4294967295U, 4294967295U, 0U, 0U, 0UL}, {0U, 0U, 0U, 0U, 0U, 0U, 0UL}}; [L5755] struct pci_device_id const __mod_pci_device_table ; [L5758-L5773] static struct pci_driver pci_driver = {{(struct list_head *)0, (struct list_head *)0}, "synclink_gt", (struct pci_device_id const *)(& pci_table), & init_one, & remove_one, (int (*)(struct pci_dev * , pm_message_t ))0, (int (*)(struct pci_dev * , pm_message_t ))0, (int (*)(struct pci_dev * ))0, (int (*)(struct pci_dev * ))0, (void (*)(struct pci_dev * ))0, (struct pci_error_handlers *)0, {(char const *)0, (struct bus_type *)0, (struct module *)0, (char const *)0, (_Bool)0, (struct of_device_id const *)0, (int (*)(struct device * ))0, (int (*)(struct device * ))0, (void (*)(struct device * ))0, (int (*)(struct device * , pm_message_t ))0, (int (*)(struct device * ))0, (struct attribute_group const **)0, (struct dev_pm_ops const *)0, (struct driver_private *)0}, {{{{{0U}, 0U, 0U, (void *)0, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, (char const *)0, 0, 0UL}}}}, {(struct list_head *)0, (struct list_head *)0}}}; [L5774] static bool pci_registered ; [L5775] static struct slgt_info *slgt_device_list ; [L5776] static int slgt_device_count ; [L5777] static int ttymajor ; [L5778] static int debug_level ; [L5779] static int maxframe[32U] ; [L5780] static struct tty_driver *serial_driver ; [L5807-L5810] static MGSL_PARAMS default_params = {2UL, (unsigned char)0, (unsigned short)1, (unsigned char)3, 0UL, (unsigned char)255, (unsigned short)1, (unsigned char)0, (unsigned char)0, 9600UL, (unsigned char)8, (unsigned char)1, (unsigned char)0}; [L7413-L7440] static struct file_operations const synclink_gt_proc_fops = {& __this_module, & seq_lseek, & seq_read, (ssize_t (*)(struct file * , char const * , size_t , loff_t * ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (int (*)(struct file * , void * , int (*)(void * , char const * , int , loff_t , u64 , unsigned int ) ))0, (unsigned int (*)(struct file * , struct poll_table_struct * ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (int (*)(struct file * , struct vm_area_struct * ))0, & synclink_gt_proc_open, (int (*)(struct file * , fl_owner_t ))0, & single_release, (int (*)(struct file * , int ))0, (int (*)(struct kiocb * , int ))0, (int (*)(int , struct file * , int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct file * , struct page * , int , size_t , loff_t * , int ))0, (unsigned long (*)(struct file * , unsigned long , unsigned long , unsigned long , unsigned long ))0, (int (*)(int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct pipe_inode_info * , struct file * , loff_t * , size_t , unsigned int ))0, (ssize_t (*)(struct file * , loff_t * , struct pipe_inode_info * , size_t , unsigned int ))0, (int (*)(struct file * , long , struct file_lock ** ))0, (long (*)(struct file * , int , loff_t , loff_t ))0}; [L8109-L8142] static struct net_device_ops const hdlcdev_ops = {(int (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, & hdlcdev_open, & hdlcdev_close, & hdlc_start_xmit, (u16 (*)(struct net_device * , struct sk_buff * ))0, (void (*)(struct net_device * , int ))0, (void (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , void * ))0, (int (*)(struct net_device * ))0, & hdlcdev_ioctl, (int (*)(struct net_device * , struct ifmap * ))0, & hdlc_change_mtu, (int (*)(struct net_device * , struct neigh_parms * ))0, & hdlcdev_tx_timeout, (struct rtnl_link_stats64 *(*)(struct net_device * , struct rtnl_link_stats64 * ))0, (struct net_device_stats *(*)(struct net_device * ))0, (void (*)(struct net_device * , struct vlan_group * ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , struct netpoll_info * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , int , u8 * ))0, (int (*)(struct net_device * , int , u16 , u8 ))0, (int (*)(struct net_device * , int , int ))0, (int (*)(struct net_device * , int , struct ifla_vf_info * ))0, (int (*)(struct net_device * , int , struct nlattr ** ))0, (int (*)(struct net_device * , int , struct sk_buff * ))0, (int (*)(struct net_device * , u8 ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u16 ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u64 * , int ))0, (int (*)(struct net_device * , struct sk_buff const * , u16 , u32 ))0, (int (*)(struct net_device * , struct net_device * ))0, (int (*)(struct net_device * , struct net_device * ))0, (u32 (*)(struct net_device * , u32 ))0, (int (*)(struct net_device * , u32 ))0}; [L11815-L11816] static struct tty_port_operations const slgt_port_ops = {& carrier_raised, & dtr_rts, (void (*)(struct tty_port * ))0, (void (*)(struct tty_port * ))0, (int (*)(struct tty_port * , struct tty_struct * ))0, (void (*)(struct tty_port * ))0}; [L12074-L12087] static struct tty_operations const ops = {(struct tty_struct *(*)(struct tty_driver * , struct inode * , int ))0, (int (*)(struct tty_driver * , struct tty_struct * ))0, (void (*)(struct tty_driver * , struct tty_struct * ))0, & open, & close, (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * ))0, & write, & put_char, & flush_chars, & write_room, & chars_in_buffer, & ioctl, & slgt_compat_ioctl, & set_termios, & throttle, & unthrottle, & tx_hold, & tx_release, & hangup, & set_break, & flush_buffer, (void (*)(struct tty_struct * ))0, & wait_until_sent, & send_xchar, & tiocmget, & tiocmset, (int (*)(struct tty_struct * , struct winsize * ))0, (int (*)(struct tty_struct * , struct termiox * ))0, & get_icount, (int (*)(struct tty_driver * , int , char * ))0, (int (*)(struct tty_driver * , int ))0, (void (*)(struct tty_driver * , int , char ))0, & synclink_gt_proc_fops}; [L14221] int LDV_IN_INTERRUPT ; [L14627] int ldv_module_refcounter = 1; [L14223] struct pci_dev *var_group1 ; [L14224] struct pci_device_id const *var_init_one_102_p1 ; [L14225] int res_init_one_102 ; [L14226] struct inode *var_group2 ; [L14227] struct file *var_group3 ; [L14228] int res_synclink_gt_proc_open_26 ; [L14229] struct net_device *var_group4 ; [L14230] int res_hdlcdev_open_33 ; [L14231] int res_hdlcdev_close_34 ; [L14232] struct ifreq *var_group5 ; [L14233] int var_hdlcdev_ioctl_35_p2 ; [L14234] struct tty_port *var_group6 ; [L14235] int var_dtr_rts_87_p1 ; [L14236] struct tty_struct *var_group7 ; [L14237] int res_open_5 ; [L14238] unsigned char const *var_write_10_p1 ; [L14239] int var_write_10_p2 ; [L14240] unsigned char var_put_char_11_p1 ; [L14241] unsigned int var_ioctl_19_p1 ; [L14242] unsigned long var_ioctl_19_p2 ; [L14243] unsigned int var_slgt_compat_ioctl_23_p1 ; [L14244] unsigned long var_slgt_compat_ioctl_23_p2 ; [L14245] char var_send_xchar_12_p1 ; [L14246] int var_set_break_30_p1 ; [L14247] int var_wait_until_sent_13_p1 ; [L14248] struct ktermios *var_group8 ; [L14249] unsigned int var_tiocmset_85_p1 ; [L14250] unsigned int var_tiocmset_85_p2 ; [L14251] struct serial_icounter_struct *var_group9 ; [L14252] int var_slgt_interrupt_56_p0 ; [L14253] void *var_slgt_interrupt_56_p1 ; [L14254] int ldv_s_pci_driver_pci_driver ; [L14255] int ldv_s_synclink_gt_proc_fops_file_operations ; [L14256] int ldv_s_hdlcdev_ops_net_device_ops ; [L14257] int ldv_s_ops_tty_operations ; [L14258] int tmp ; [L14259] int tmp___0 ; [L14260] int tmp___1 ; [L14263] ldv_s_pci_driver_pci_driver = 0 [L14264] ldv_s_synclink_gt_proc_fops_file_operations = 0 [L14265] ldv_s_hdlcdev_ops_net_device_ops = 0 [L14266] ldv_s_ops_tty_operations = 0 [L14267] LDV_IN_INTERRUPT = 1 [L14268] FCALL ldv_initialize() [L14269] CALL, EXPR slgt_init() [L12178] int rc ; [L12182] CALL, EXPR alloc_tty_driver(32) [L14781] CALL, EXPR ldv_malloc(sizeof(struct tty_driver)) VAL [\old(size)=281, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=0, pci_table={190:0}, serial_driver={0:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, ttymajor=0] [L14728] COND FALSE !(__VERIFIER_nondet_bool()) [L14729] return malloc(size); [L14781] RET, EXPR ldv_malloc(sizeof(struct tty_driver)) VAL [\old(arg0)=32, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, arg0=32, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct tty_driver))={-18446744073709551617:0}, ldv_module_refcounter=1, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=0, pci_table={190:0}, serial_driver={0:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, ttymajor=0] [L14781] return ldv_malloc(sizeof(struct tty_driver)); [L12182] RET, EXPR alloc_tty_driver(32) [L12182] serial_driver = alloc_tty_driver(32) [L12184] COND FALSE !((unsigned long )serial_driver == (unsigned long )((struct tty_driver *)0)) [L12192] serial_driver->owner = & __this_module [L12193] serial_driver->driver_name = (char const *)tty_driver_name [L12194] serial_driver->name = (char const *)tty_dev_prefix [L12195] serial_driver->major = ttymajor [L12196] serial_driver->minor_start = 64 [L12197] serial_driver->type = (short)3 [L12198] serial_driver->subtype = (short)1 [L12199] serial_driver->init_termios = tty_std_termios [L12200] serial_driver->init_termios.c_cflag = 3261U [L12201] serial_driver->init_termios.c_ispeed = 9600U [L12202] serial_driver->init_termios.c_ospeed = 9600U [L12203] serial_driver->flags = 12 [L12204] FCALL tty_set_operations(serial_driver, & ops) [L12205] CALL, EXPR tty_register_driver(serial_driver) [L14995] return __VERIFIER_nondet_int(); [L12205] RET, EXPR tty_register_driver(serial_driver) [L12205] rc = tty_register_driver(serial_driver) [L12207] COND FALSE !(rc < 0) [L12222] serial_driver->major [L12223] slgt_device_count = 0 [L12224] CALL, EXPR __pci_register_driver(& pci_driver, & __this_module, "synclink_gt") [L14739] return __VERIFIER_nondet_int(); [L12224] RET, EXPR __pci_register_driver(& pci_driver, & __this_module, "synclink_gt") [L12224] rc = __pci_register_driver(& pci_driver, & __this_module, "synclink_gt") [L12226] COND FALSE !(rc < 0) [L12233] pci_registered = (bool )1 [L12234] COND TRUE (unsigned long )slgt_device_list == (unsigned long )((struct slgt_info *)0) [L12240] return (0); VAL [\result=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, printk("%s no devices found\n", driver_name)=18446744073709551653, rc=0, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] [L14269] RET, EXPR slgt_init() [L14269] tmp = slgt_init() [L14271] COND FALSE !(tmp != 0) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_hdlcdev_ops_net_device_ops=0, ldv_s_ops_tty_operations=0, ldv_s_pci_driver_pci_driver=0, ldv_s_synclink_gt_proc_fops_file_operations=0, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp=0, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] [L14589] tmp___1 = __VERIFIER_nondet_int() [L14591] COND TRUE tmp___1 != 0 VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_hdlcdev_ops_net_device_ops=0, ldv_s_ops_tty_operations=0, ldv_s_pci_driver_pci_driver=0, ldv_s_synclink_gt_proc_fops_file_operations=0, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp=0, tmp___1=1, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] [L14278] tmp___0 = __VERIFIER_nondet_int() [L14280] COND FALSE !(tmp___0 == 0) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_hdlcdev_ops_net_device_ops=0, ldv_s_ops_tty_operations=0, ldv_s_pci_driver_pci_driver=0, ldv_s_synclink_gt_proc_fops_file_operations=0, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp=0, tmp___0=2, tmp___1=1, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] [L14283] COND FALSE !(tmp___0 == 1) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_hdlcdev_ops_net_device_ops=0, ldv_s_ops_tty_operations=0, ldv_s_pci_driver_pci_driver=0, ldv_s_synclink_gt_proc_fops_file_operations=0, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp=0, tmp___0=2, tmp___1=1, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] [L14286] COND TRUE tmp___0 == 2 VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_hdlcdev_ops_net_device_ops=0, ldv_s_ops_tty_operations=0, ldv_s_pci_driver_pci_driver=0, ldv_s_synclink_gt_proc_fops_file_operations=0, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp=0, tmp___0=2, tmp___1=1, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] [L14404] COND TRUE ldv_s_hdlcdev_ops_net_device_ops == 0 [L14406] CALL, EXPR hdlcdev_open(var_group4) [L7718] struct slgt_info *info ; [L7719] struct hdlc_device *tmp ; [L7720] int rc ; [L7721] unsigned long flags ; [L7722] int tmp___0 ; [L7723] raw_spinlock_t *tmp___1 ; [L7724] raw_spinlock_t *tmp___2 ; [L7725] raw_spinlock_t *tmp___3 ; VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, dev={18446744073709551689:-2671}, dev={18446744073709551689:-2671}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] [L7728] CALL, EXPR dev_to_hdlc(dev) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] [L5713] void *tmp ; [L5716] CALL, EXPR netdev_priv((struct net_device const *)dev) [L5583] return ((void *)dev + 2560U); [L5716] RET, EXPR netdev_priv((struct net_device const *)dev) [L5716] tmp = netdev_priv((struct net_device const *)dev) [L5718] return ((struct hdlc_device *)tmp); [L7728] RET, EXPR dev_to_hdlc(dev) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, dev={18446744073709551689:-2671}, dev={18446744073709551689:-2671}, dev_to_hdlc(dev)={18446744073709551689:-111}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] [L7728] tmp = dev_to_hdlc(dev) [L7729] EXPR tmp->priv [L7729] info = (struct slgt_info *)tmp->priv [L7730] CALL, EXPR ldv_try_module_get_1(& __this_module) [L14701] int tmp ; [L14704] CALL, EXPR ldv_try_module_get(module) [L14639] int module_get_succeeded ; [L14641] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) [L14643] CALL, EXPR ldv_undefined_int() [L14851] return __VERIFIER_nondet_int(); [L14643] RET, EXPR ldv_undefined_int() [L14643] module_get_succeeded = ldv_undefined_int() [L14645] COND TRUE module_get_succeeded == 1 [L14646] ldv_module_refcounter = ldv_module_refcounter + 1 [L14647] return (1); [L14704] RET, EXPR ldv_try_module_get(module) [L14704] tmp = ldv_try_module_get(module) [L14706] return (tmp); [L7730] RET, EXPR ldv_try_module_get_1(& __this_module) [L7730] tmp___0 = ldv_try_module_get_1(& __this_module) [L7732] COND FALSE !(tmp___0 == 0) [L7736] COND FALSE !(debug_level > 2) [L7743] CALL, EXPR hdlc_open(dev) [L14825] return __VERIFIER_nondet_int(); [L7743] RET, EXPR hdlc_open(dev) [L7743] rc = hdlc_open(dev) [L7745] COND TRUE rc != 0 [L7746] return (rc); VAL [\result=-4, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, dev={18446744073709551689:-2671}, dev={18446744073709551689:-2671}, driver_name={8:0}, hdlcdev_ops={195:0}, info={18446744073709551659:18446744073709551664}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, printk("%s hdlcdev_open\n", (char *)(& dev->name))=18446744073709551646, rc=-4, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp={18446744073709551689:-111}, tmp___0=1, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] [L14406] RET, EXPR hdlcdev_open(var_group4) [L14406] res_hdlcdev_open_33 = hdlcdev_open(var_group4) [L14407] FCALL ldv_check_return_value(res_hdlcdev_open_33) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_hdlcdev_ops_net_device_ops=0, ldv_s_ops_tty_operations=0, ldv_s_pci_driver_pci_driver=0, ldv_s_synclink_gt_proc_fops_file_operations=0, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, res_hdlcdev_open_33=-4, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp=0, tmp___0=2, tmp___1=1, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0, var_group4={18446744073709551689:-2671}] [L14409] COND TRUE res_hdlcdev_open_33 < 0 VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_hdlcdev_ops_net_device_ops=0, ldv_s_ops_tty_operations=0, ldv_s_pci_driver_pci_driver=0, ldv_s_synclink_gt_proc_fops_file_operations=0, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, res_hdlcdev_open_33=-4, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp=0, tmp___0=2, tmp___1=1, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0, var_group4={18446744073709551689:-2671}] [L14611] CALL slgt_exit() [L12252] CALL slgt_cleanup() VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] [L12089] int rc ; [L12090] struct slgt_info *info ; [L12091] struct slgt_info *tmp ; [L12096] COND TRUE (unsigned long )serial_driver != (unsigned long )((struct tty_driver *)0) [L12097] info = slgt_device_list VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, info={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] [L12105] COND FALSE !((unsigned long )info != (unsigned long )((struct slgt_info *)0)) [L12112] CALL, EXPR tty_unregister_driver(serial_driver) [L15008] return __VERIFIER_nondet_int(); [L12112] RET, EXPR tty_unregister_driver(serial_driver) [L12112] rc = tty_unregister_driver(serial_driver) [L12114] COND TRUE rc != 0 [L12115] COND FALSE !(debug_level > 1) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, info={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, printk("tty_unregister_driver error=%d\n", rc)=18446744073709551635, rc=198, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] [L12124] FCALL put_tty_driver(serial_driver) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, info={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, printk("tty_unregister_driver error=%d\n", rc)=18446744073709551635, rc=198, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] [L12128] info = slgt_device_list VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, info={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, printk("tty_unregister_driver error=%d\n", rc)=18446744073709551635, rc=198, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] [L12136] COND FALSE !((unsigned long )info != (unsigned long )((struct slgt_info *)0)) [L12142] info = slgt_device_list VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, info={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, printk("tty_unregister_driver error=%d\n", rc)=18446744073709551635, rc=198, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] [L12162] COND FALSE !((unsigned long )info != (unsigned long )((struct slgt_info *)0)) [L12168] COND TRUE (int )pci_registered [L12170] FCALL pci_unregister_driver(& pci_driver) [L12252] RET slgt_cleanup() VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] [L14611] RET slgt_exit() [L14615] CALL ldv_check_final_state() [L14691] COND TRUE ldv_module_refcounter != 1 VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] [L14693] CALL ldv_blast_assert() VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] [L14623] reach_error() VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={0:18446744073709551617}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={-18446744073709551617:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={18446744073709551706:-42}, ttymajor=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 99 procedures, 1955 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 138.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 130.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 33 mSolverCounterUnknown, 17297 SdHoareTripleChecker+Valid, 127.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16756 mSDsluCounter, 48177 SdHoareTripleChecker+Invalid, 121.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28918 mSDsCounter, 538 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10103 IncrementalHoareTripleChecker+Invalid, 10674 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 538 mSolverCounterUnsat, 23047 mSDtfsCounter, 10103 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16860occurred in iteration=6, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 4562 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 330 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-20 23:15:53,666 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-20 23:15:53,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P --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 549d105dbd2b95e1c241c01b48dc69ec107f34e0fb82917a92dcec665dfc2efc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:15:56,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:15:56,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:15:56,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:15:56,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:15:56,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:15:56,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:15:56,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:15:56,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:15:56,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:15:56,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:15:56,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:15:56,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:15:56,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:15:56,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:15:56,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:15:56,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:15:56,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:15:56,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:15:56,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:15:56,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:15:56,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:15:56,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:15:56,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:15:56,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:15:56,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:15:56,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:15:56,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:15:56,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:15:56,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:15:56,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:15:56,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:15:56,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:15:56,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:15:56,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:15:56,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:15:56,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:15:56,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:15:56,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:15:56,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:15:56,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:15:56,115 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-20 23:15:56,142 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:15:56,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:15:56,143 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:15:56,143 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:15:56,144 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:15:56,144 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:15:56,144 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:15:56,144 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:15:56,145 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:15:56,145 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:15:56,145 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:15:56,145 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:15:56,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:15:56,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:15:56,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:15:56,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:15:56,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:15:56,147 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 23:15:56,148 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 23:15:56,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:15:56,148 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:15:56,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:15:56,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:15:56,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 23:15:56,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:15:56,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:15:56,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:15:56,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:15:56,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:15:56,150 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-20 23:15:56,150 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 23:15:56,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:15:56,151 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:15:56,151 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:15:56,151 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 549d105dbd2b95e1c241c01b48dc69ec107f34e0fb82917a92dcec665dfc2efc [2021-11-20 23:15:56,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:15:56,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:15:56,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:15:56,590 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:15:56,591 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:15:56,592 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i [2021-11-20 23:15:56,673 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/data/25fa34d01/35d3e8bed37d4e10970da39bed0dee70/FLAGdc001e160 [2021-11-20 23:15:57,892 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:15:57,893 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i [2021-11-20 23:15:57,946 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/data/25fa34d01/35d3e8bed37d4e10970da39bed0dee70/FLAGdc001e160 [2021-11-20 23:15:58,144 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/data/25fa34d01/35d3e8bed37d4e10970da39bed0dee70 [2021-11-20 23:15:58,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:15:58,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:15:58,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:15:58,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:15:58,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:15:58,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:15:58" (1/1) ... [2021-11-20 23:15:58,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d77ef66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:58, skipping insertion in model container [2021-11-20 23:15:58,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:15:58" (1/1) ... [2021-11-20 23:15:58,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:15:58,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:16:01,597 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_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i[379011,379024] [2021-11-20 23:16:01,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:16:01,729 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:16:02,464 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_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i[379011,379024] [2021-11-20 23:16:02,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:16:02,882 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:16:02,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:02 WrapperNode [2021-11-20 23:16:02,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:16:02,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:16:02,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:16:02,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:16:02,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:02" (1/1) ... [2021-11-20 23:16:03,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:02" (1/1) ... [2021-11-20 23:16:03,435 INFO L137 Inliner]: procedures = 358, calls = 3523, calls flagged for inlining = 191, calls inlined = 172, statements flattened = 8171 [2021-11-20 23:16:03,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:16:03,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:16:03,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:16:03,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:16:03,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:02" (1/1) ... [2021-11-20 23:16:03,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:02" (1/1) ... [2021-11-20 23:16:03,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:02" (1/1) ... [2021-11-20 23:16:03,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:02" (1/1) ... [2021-11-20 23:16:03,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:02" (1/1) ... [2021-11-20 23:16:03,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:02" (1/1) ... [2021-11-20 23:16:03,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:02" (1/1) ... [2021-11-20 23:16:03,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:16:03,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:16:03,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:16:03,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:16:03,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:02" (1/1) ... [2021-11-20 23:16:03,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:16:03,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:16:03,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:16:03,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:16:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-20 23:16:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2021-11-20 23:16:03,934 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2021-11-20 23:16:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-20 23:16:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-20 23:16:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-20 23:16:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 23:16:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-20 23:16:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 23:16:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-20 23:16:03,936 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-20 23:16:03,936 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-20 23:16:03,936 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-20 23:16:03,936 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-20 23:16:03,936 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-20 23:16:03,936 INFO L130 BoogieDeclarations]: Found specification of procedure set_signals [2021-11-20 23:16:03,937 INFO L138 BoogieDeclarations]: Found implementation of procedure set_signals [2021-11-20 23:16:03,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 23:16:03,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 23:16:03,937 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_dma_bufs [2021-11-20 23:16:03,937 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_dma_bufs [2021-11-20 23:16:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-11-20 23:16:03,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-11-20 23:16:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_char [2021-11-20 23:16:03,938 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_char [2021-11-20 23:16:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-20 23:16:03,938 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-20 23:16:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure tx_stop [2021-11-20 23:16:03,939 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_stop [2021-11-20 23:16:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-11-20 23:16:03,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-11-20 23:16:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-20 23:16:03,939 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-20 23:16:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-20 23:16:03,940 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-20 23:16:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 23:16:03,940 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 23:16:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 23:16:03,941 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 23:16:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure free_bufs [2021-11-20 23:16:03,941 INFO L138 BoogieDeclarations]: Found implementation of procedure free_bufs [2021-11-20 23:16:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-20 23:16:03,941 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-20 23:16:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure change_params [2021-11-20 23:16:03,942 INFO L138 BoogieDeclarations]: Found implementation of procedure change_params [2021-11-20 23:16:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-11-20 23:16:03,942 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-11-20 23:16:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-20 23:16:03,942 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-20 23:16:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 23:16:03,943 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 23:16:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure tx_start [2021-11-20 23:16:03,943 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_start [2021-11-20 23:16:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:16:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 23:16:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure startup [2021-11-20 23:16:03,944 INFO L138 BoogieDeclarations]: Found implementation of procedure startup [2021-11-20 23:16:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:16:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure reset_rbufs [2021-11-20 23:16:03,944 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_rbufs [2021-11-20 23:16:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure wait_until_sent [2021-11-20 23:16:03,945 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_until_sent [2021-11-20 23:16:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-11-20 23:16:03,945 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-11-20 23:16:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 23:16:03,945 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 23:16:03,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-20 23:16:03,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-20 23:16:03,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-20 23:16:03,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-11-20 23:16:03,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-11-20 23:16:03,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:16:03,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-20 23:16:03,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 23:16:03,947 INFO L130 BoogieDeclarations]: Found specification of procedure set_rate [2021-11-20 23:16:03,947 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rate [2021-11-20 23:16:03,947 INFO L130 BoogieDeclarations]: Found specification of procedure free_rbufs [2021-11-20 23:16:03,948 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rbufs [2021-11-20 23:16:03,948 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-20 23:16:03,948 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-20 23:16:03,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-20 23:16:03,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 23:16:03,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-20 23:16:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure async_mode [2021-11-20 23:16:03,949 INFO L138 BoogieDeclarations]: Found implementation of procedure async_mode [2021-11-20 23:16:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl [2021-11-20 23:16:03,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl [2021-11-20 23:16:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-20 23:16:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-11-20 23:16:03,950 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-11-20 23:16:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-20 23:16:03,950 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-20 23:16:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-20 23:16:03,950 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-20 23:16:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-20 23:16:03,951 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-20 23:16:03,951 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2021-11-20 23:16:03,951 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2021-11-20 23:16:03,951 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 23:16:03,951 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 23:16:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure rx_stop [2021-11-20 23:16:03,952 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_stop [2021-11-20 23:16:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 23:16:03,952 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 23:16:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-20 23:16:03,952 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-20 23:16:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure update_tx_timer [2021-11-20 23:16:03,953 INFO L138 BoogieDeclarations]: Found implementation of procedure update_tx_timer [2021-11-20 23:16:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bufs [2021-11-20 23:16:03,953 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bufs [2021-11-20 23:16:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-20 23:16:03,953 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-20 23:16:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure msc_set_vcr [2021-11-20 23:16:03,954 INFO L138 BoogieDeclarations]: Found implementation of procedure msc_set_vcr [2021-11-20 23:16:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure isr_txeom [2021-11-20 23:16:03,954 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_txeom [2021-11-20 23:16:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 23:16:03,954 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 23:16:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure setup_timer_key [2021-11-20 23:16:03,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_timer_key [2021-11-20 23:16:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-20 23:16:03,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-20 23:16:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure rdma_reset [2021-11-20 23:16:03,955 INFO L138 BoogieDeclarations]: Found implementation of procedure rdma_reset [2021-11-20 23:16:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2021-11-20 23:16:03,956 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hung_up_p [2021-11-20 23:16:03,956 INFO L130 BoogieDeclarations]: Found specification of procedure release_resources [2021-11-20 23:16:03,956 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resources [2021-11-20 23:16:03,956 INFO L130 BoogieDeclarations]: Found specification of procedure slgt_cleanup [2021-11-20 23:16:03,956 INFO L138 BoogieDeclarations]: Found implementation of procedure slgt_cleanup [2021-11-20 23:16:03,956 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-20 23:16:03,957 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-20 23:16:03,957 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 23:16:03,957 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 23:16:03,957 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-11-20 23:16:03,957 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-11-20 23:16:03,957 INFO L130 BoogieDeclarations]: Found specification of procedure tx_set_idle [2021-11-20 23:16:03,958 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_set_idle [2021-11-20 23:16:03,958 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-20 23:16:03,958 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-20 23:16:03,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 23:16:03,958 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 23:16:03,958 INFO L130 BoogieDeclarations]: Found specification of procedure enable_loopback [2021-11-20 23:16:03,959 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_loopback [2021-11-20 23:16:03,959 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 23:16:03,959 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 23:16:03,959 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 23:16:03,959 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 23:16:03,960 INFO L130 BoogieDeclarations]: Found specification of procedure tx_load [2021-11-20 23:16:03,960 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_load [2021-11-20 23:16:03,960 INFO L130 BoogieDeclarations]: Found specification of procedure wr_reg32 [2021-11-20 23:16:03,960 INFO L138 BoogieDeclarations]: Found implementation of procedure wr_reg32 [2021-11-20 23:16:03,960 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_tx_done [2021-11-20 23:16:03,960 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_tx_done [2021-11-20 23:16:03,960 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-20 23:16:03,961 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-20 23:16:03,961 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-20 23:16:03,961 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-20 23:16:03,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-20 23:16:03,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-20 23:16:03,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-20 23:16:03,962 INFO L130 BoogieDeclarations]: Found specification of procedure program_hw [2021-11-20 23:16:03,962 INFO L138 BoogieDeclarations]: Found implementation of procedure program_hw [2021-11-20 23:16:03,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-20 23:16:03,962 INFO L130 BoogieDeclarations]: Found specification of procedure rd_reg32 [2021-11-20 23:16:03,962 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_reg32 [2021-11-20 23:16:03,962 INFO L130 BoogieDeclarations]: Found specification of procedure isr_rxdata [2021-11-20 23:16:03,962 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_rxdata [2021-11-20 23:16:03,963 INFO L130 BoogieDeclarations]: Found specification of procedure reset_port [2021-11-20 23:16:03,963 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_port [2021-11-20 23:16:03,963 INFO L130 BoogieDeclarations]: Found specification of procedure tbuf_bytes [2021-11-20 23:16:03,963 INFO L138 BoogieDeclarations]: Found implementation of procedure tbuf_bytes [2021-11-20 23:16:03,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:16:03,963 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2021-11-20 23:16:03,964 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2021-11-20 23:16:03,964 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-20 23:16:03,964 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-20 23:16:03,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:16:03,964 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2021-11-20 23:16:03,964 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2021-11-20 23:16:03,964 INFO L130 BoogieDeclarations]: Found specification of procedure flush_buffer [2021-11-20 23:16:03,965 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_buffer [2021-11-20 23:16:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:16:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 23:16:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure wr_reg16 [2021-11-20 23:16:03,965 INFO L138 BoogieDeclarations]: Found implementation of procedure wr_reg16 [2021-11-20 23:16:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-20 23:16:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-20 23:16:03,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-20 23:16:03,966 INFO L130 BoogieDeclarations]: Found specification of procedure tx_release [2021-11-20 23:16:03,966 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_release [2021-11-20 23:16:03,966 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-20 23:16:03,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-20 23:16:03,966 INFO L130 BoogieDeclarations]: Found specification of procedure rd_reg16 [2021-11-20 23:16:03,967 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_reg16 [2021-11-20 23:16:03,967 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-20 23:16:03,967 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-20 23:16:03,967 INFO L130 BoogieDeclarations]: Found specification of procedure sync_mode [2021-11-20 23:16:03,967 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_mode [2021-11-20 23:16:03,967 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown [2021-11-20 23:16:03,967 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown [2021-11-20 23:16:03,968 INFO L130 BoogieDeclarations]: Found specification of procedure send_xchar [2021-11-20 23:16:03,968 INFO L138 BoogieDeclarations]: Found implementation of procedure send_xchar [2021-11-20 23:16:03,968 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 23:16:03,968 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 23:16:03,968 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2021-11-20 23:16:03,968 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2021-11-20 23:16:03,969 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-20 23:16:03,969 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-20 23:16:03,969 INFO L130 BoogieDeclarations]: Found specification of procedure free_tmp_rbuf [2021-11-20 23:16:03,969 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tmp_rbuf [2021-11-20 23:16:03,969 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-20 23:16:03,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-20 23:16:03,969 INFO L130 BoogieDeclarations]: Found specification of procedure tdma_reset [2021-11-20 23:16:03,970 INFO L138 BoogieDeclarations]: Found implementation of procedure tdma_reset [2021-11-20 23:16:03,970 INFO L130 BoogieDeclarations]: Found specification of procedure get_signals [2021-11-20 23:16:03,970 INFO L138 BoogieDeclarations]: Found implementation of procedure get_signals [2021-11-20 23:16:03,970 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-20 23:16:03,970 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-20 23:16:03,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-20 23:16:03,970 INFO L130 BoogieDeclarations]: Found specification of procedure rx_start [2021-11-20 23:16:03,971 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_start [2021-11-20 23:16:03,971 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block [2021-11-20 23:16:03,971 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block [2021-11-20 23:16:03,971 INFO L130 BoogieDeclarations]: Found specification of procedure wr_reg8 [2021-11-20 23:16:03,971 INFO L138 BoogieDeclarations]: Found implementation of procedure wr_reg8 [2021-11-20 23:16:03,971 INFO L130 BoogieDeclarations]: Found specification of procedure sanity_check [2021-11-20 23:16:03,972 INFO L138 BoogieDeclarations]: Found implementation of procedure sanity_check [2021-11-20 23:16:03,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:16:03,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:16:05,042 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:16:05,048 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:16:05,529 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:16:05,596 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2021-11-20 23:16:05,597 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2021-11-20 23:16:06,866 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-11-20 23:16:06,867 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-11-20 23:16:08,985 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:16:09,463 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2021-11-20 23:16:09,464 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2021-11-20 23:16:10,255 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:16:10,259 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:16:10,686 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume !false; [2021-11-20 23:16:10,687 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##60: assume false; [2021-11-20 23:16:10,687 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##132: assume !false; [2021-11-20 23:16:10,687 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##131: assume false; [2021-11-20 23:16:11,559 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:16:31,195 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10940: SUMMARY for call modem_input_wait_#t~ret1364#1.base, modem_input_wait_#t~ret1364#1.offset := get_current(); srcloc: null [2021-11-20 23:16:31,195 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10940-1: modem_input_wait_~tmp___8~2#1.base, modem_input_wait_~tmp___8~2#1.offset := modem_input_wait_#t~ret1364#1.base, modem_input_wait_#t~ret1364#1.offset;havoc modem_input_wait_#t~ret1364#1.base, modem_input_wait_#t~ret1364#1.offset;modem_input_wait_~__ptr___3~1#1.base, modem_input_wait_~__ptr___3~1#1.offset := modem_input_wait_~tmp___8~2#1.base, modem_input_wait_~tmp___8~2#1.offset; [2021-11-20 23:16:31,195 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10882: SUMMARY for call modem_input_wait_#t~ret1333#1.base, modem_input_wait_#t~ret1333#1.offset := get_current(); srcloc: null [2021-11-20 23:16:31,195 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10882-1: modem_input_wait_~tmp___1~21#1.base, modem_input_wait_~tmp___1~21#1.offset := modem_input_wait_#t~ret1333#1.base, modem_input_wait_#t~ret1333#1.offset;havoc modem_input_wait_#t~ret1333#1.base, modem_input_wait_#t~ret1333#1.offset;modem_input_wait_~__ptr~3#1.base, modem_input_wait_~__ptr~3#1.offset := modem_input_wait_~tmp___1~21#1.base, modem_input_wait_~tmp___1~21#1.offset; [2021-11-20 23:16:31,195 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##265: assume !false; [2021-11-20 23:16:31,196 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##264: assume false; [2021-11-20 23:16:31,196 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##276: assume false; [2021-11-20 23:16:31,196 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##277: assume !false; [2021-11-20 23:16:31,196 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##232: assume false; [2021-11-20 23:16:31,196 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##233: assume !false; [2021-11-20 23:16:31,196 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##241: assume !false; [2021-11-20 23:16:31,196 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##240: assume false; [2021-11-20 23:16:31,196 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11037-1: modem_input_wait_~tmp___12~1#1.base, modem_input_wait_~tmp___12~1#1.offset := modem_input_wait_#t~ret1407#1.base, modem_input_wait_#t~ret1407#1.offset;havoc modem_input_wait_#t~ret1407#1.base, modem_input_wait_#t~ret1407#1.offset;modem_input_wait_~__ptr___7~1#1.base, modem_input_wait_~__ptr___7~1#1.offset := modem_input_wait_~tmp___12~1#1.base, modem_input_wait_~tmp___12~1#1.offset; [2021-11-20 23:16:31,196 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11037: SUMMARY for call modem_input_wait_#t~ret1407#1.base, modem_input_wait_#t~ret1407#1.offset := get_current(); srcloc: null [2021-11-20 23:16:31,196 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##304: assume !false; [2021-11-20 23:16:31,197 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##303: assume false; [2021-11-20 23:16:31,197 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10655-1: remove_cond_wait_~tmp~91#1.base, remove_cond_wait_~tmp~91#1.offset := remove_cond_wait_#t~ret1268#1.base, remove_cond_wait_#t~ret1268#1.offset;havoc remove_cond_wait_#t~ret1268#1.base, remove_cond_wait_#t~ret1268#1.offset;remove_cond_wait_~__ptr~2#1.base, remove_cond_wait_~__ptr~2#1.offset := remove_cond_wait_~tmp~91#1.base, remove_cond_wait_~tmp~91#1.offset; [2021-11-20 23:16:31,197 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10655: SUMMARY for call remove_cond_wait_#t~ret1268#1.base, remove_cond_wait_#t~ret1268#1.offset := get_current(); srcloc: null [2021-11-20 23:16:31,197 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10195: SUMMARY for call wait_mgsl_event_#t~ret1204#1.base, wait_mgsl_event_#t~ret1204#1.offset := get_current(); srcloc: null [2021-11-20 23:16:31,197 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10195-1: wait_mgsl_event_~tmp___26~0#1.base, wait_mgsl_event_~tmp___26~0#1.offset := wait_mgsl_event_#t~ret1204#1.base, wait_mgsl_event_#t~ret1204#1.offset;havoc wait_mgsl_event_#t~ret1204#1.base, wait_mgsl_event_#t~ret1204#1.offset;wait_mgsl_event_~__ptr___7~0#1.base, wait_mgsl_event_~__ptr___7~0#1.offset := wait_mgsl_event_~tmp___26~0#1.base, wait_mgsl_event_~tmp___26~0#1.offset; [2021-11-20 23:16:31,197 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10592: SUMMARY for call add_cond_wait_#t~ret1263#1.base, add_cond_wait_#t~ret1263#1.offset := get_current(); srcloc: null [2021-11-20 23:16:31,197 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10592-1: add_cond_wait_~tmp~90#1.base, add_cond_wait_~tmp~90#1.offset := add_cond_wait_#t~ret1263#1.base, add_cond_wait_#t~ret1263#1.offset;havoc add_cond_wait_#t~ret1263#1.base, add_cond_wait_#t~ret1263#1.offset;add_cond_wait_~__ptr~1#1.base, add_cond_wait_~__ptr~1#1.offset := add_cond_wait_~tmp~90#1.base, add_cond_wait_~tmp~90#1.offset; [2021-11-20 23:16:31,197 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10064: SUMMARY for call wait_mgsl_event_#t~ret1129#1.base, wait_mgsl_event_#t~ret1129#1.offset := get_current(); srcloc: null [2021-11-20 23:16:31,197 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10064-1: wait_mgsl_event_~tmp___13~0#1.base, wait_mgsl_event_~tmp___13~0#1.offset := wait_mgsl_event_#t~ret1129#1.base, wait_mgsl_event_#t~ret1129#1.offset;havoc wait_mgsl_event_#t~ret1129#1.base, wait_mgsl_event_#t~ret1129#1.offset;wait_mgsl_event_~__ptr___3~0#1.base, wait_mgsl_event_~__ptr___3~0#1.offset := wait_mgsl_event_~tmp___13~0#1.base, wait_mgsl_event_~tmp___13~0#1.offset; [2021-11-20 23:16:31,198 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false; [2021-11-20 23:16:31,198 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2021-11-20 23:16:31,198 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##69: assume !false; [2021-11-20 23:16:31,198 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##68: assume false; [2021-11-20 23:16:31,198 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##195: assume false; [2021-11-20 23:16:31,198 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##196: assume !false; [2021-11-20 23:16:31,198 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume !false; [2021-11-20 23:16:31,198 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume false; [2021-11-20 23:16:31,198 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##139: assume !false; [2021-11-20 23:16:31,199 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##138: assume false; [2021-11-20 23:16:31,199 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10004: SUMMARY for call wait_mgsl_event_#t~ret1090#1.base, wait_mgsl_event_#t~ret1090#1.offset := get_current(); srcloc: null [2021-11-20 23:16:31,199 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10004-1: wait_mgsl_event_~tmp___6~1#1.base, wait_mgsl_event_~tmp___6~1#1.offset := wait_mgsl_event_#t~ret1090#1.base, wait_mgsl_event_#t~ret1090#1.offset;havoc wait_mgsl_event_#t~ret1090#1.base, wait_mgsl_event_#t~ret1090#1.offset;wait_mgsl_event_~__ptr~0#1.base, wait_mgsl_event_~__ptr~0#1.offset := wait_mgsl_event_~tmp___6~1#1.base, wait_mgsl_event_~tmp___6~1#1.offset; [2021-11-20 23:16:31,199 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##389: assume false; [2021-11-20 23:16:31,199 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##151: assume !false; [2021-11-20 23:16:31,199 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##150: assume false; [2021-11-20 23:16:31,199 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##390: assume !false; [2021-11-20 23:16:31,200 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##155: assume false; [2021-11-20 23:16:31,200 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##156: assume !false; [2021-11-20 23:16:31,200 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume false; [2021-11-20 23:16:31,200 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume !false; [2021-11-20 23:16:31,200 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##327: assume !false; [2021-11-20 23:16:31,201 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##326: assume false; [2021-11-20 23:16:33,017 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:16:33,020 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:16:33,028 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:16:33,029 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:16:33,030 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:17:06,157 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##289: assume !false;call ULTIMATE.dealloc(hdlcdev_ioctl_~#new_line~0#1.base, hdlcdev_ioctl_~#new_line~0#1.offset);havoc hdlcdev_ioctl_~#new_line~0#1.base, hdlcdev_ioctl_~#new_line~0#1.offset; [2021-11-20 23:17:06,157 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##288: assume false; [2021-11-20 23:17:06,158 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume !false; [2021-11-20 23:17:06,158 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##300: assume false; [2021-11-20 23:17:06,158 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##323: assume !false; [2021-11-20 23:17:06,158 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##322: assume false; [2021-11-20 23:17:06,158 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11392: SUMMARY for call block_til_ready_#t~ret1467#1.base, block_til_ready_#t~ret1467#1.offset := get_current(); srcloc: null [2021-11-20 23:17:06,158 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11392-1: block_til_ready_~tmp___9~2#1.base, block_til_ready_~tmp___9~2#1.offset := block_til_ready_#t~ret1467#1.base, block_til_ready_#t~ret1467#1.offset;havoc block_til_ready_#t~ret1467#1.base, block_til_ready_#t~ret1467#1.offset;block_til_ready_~__ptr___3~2#1.base, block_til_ready_~__ptr___3~2#1.offset := block_til_ready_~tmp___9~2#1.base, block_til_ready_~tmp___9~2#1.offset; [2021-11-20 23:17:06,158 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##399: assume false; [2021-11-20 23:17:06,158 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##423: assume false; [2021-11-20 23:17:06,159 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##424: assume !false; [2021-11-20 23:17:06,159 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##400: assume !false; [2021-11-20 23:17:06,159 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11302-1: block_til_ready_~tmp___2~14#1.base, block_til_ready_~tmp___2~14#1.offset := block_til_ready_#t~ret1453#1.base, block_til_ready_#t~ret1453#1.offset;havoc block_til_ready_#t~ret1453#1.base, block_til_ready_#t~ret1453#1.offset;block_til_ready_~__ptr~4#1.base, block_til_ready_~__ptr~4#1.offset := block_til_ready_~tmp___2~14#1.base, block_til_ready_~tmp___2~14#1.offset; [2021-11-20 23:17:06,159 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11302: SUMMARY for call block_til_ready_#t~ret1453#1.base, block_til_ready_#t~ret1453#1.offset := get_current(); srcloc: null [2021-11-20 23:17:06,159 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume !false; [2021-11-20 23:17:06,159 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##77: assume false; [2021-11-20 23:17:06,159 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##133: assume !false; [2021-11-20 23:17:06,160 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##132: assume false; [2021-11-20 23:17:07,366 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:17:07,394 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:17:07,394 INFO L301 CfgBuilder]: Removed 17 assume(true) statements. [2021-11-20 23:17:07,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:17:07 BoogieIcfgContainer [2021-11-20 23:17:07,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:17:07,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:17:07,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:17:07,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:17:07,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:15:58" (1/3) ... [2021-11-20 23:17:07,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8138df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:17:07, skipping insertion in model container [2021-11-20 23:17:07,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:02" (2/3) ... [2021-11-20 23:17:07,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8138df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:17:07, skipping insertion in model container [2021-11-20 23:17:07,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:17:07" (3/3) ... [2021-11-20 23:17:07,409 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-tty-synclink_gt.ko.cil.out.i [2021-11-20 23:17:07,414 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:17:07,415 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:17:07,480 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:17:07,486 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 23:17:07,487 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:17:07,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 2733 states, 2016 states have (on average 1.4037698412698412) internal successors, (2830), 2091 states have internal predecessors, (2830), 627 states have call successors, (627), 98 states have call predecessors, (627), 98 states have return successors, (627), 607 states have call predecessors, (627), 627 states have call successors, (627) [2021-11-20 23:17:07,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-20 23:17:07,576 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:17:07,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:17:07,577 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:17:07,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:17:07,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1683062230, now seen corresponding path program 1 times [2021-11-20 23:17:07,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:17:07,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144380070] [2021-11-20 23:17:07,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:17:07,600 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:17:07,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:17:07,603 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:17:07,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 23:17:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:17:08,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:17:08,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:17:09,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:17:09,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:17:09,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:17:09,763 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:17:09,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144380070] [2021-11-20 23:17:09,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144380070] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:17:09,764 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:17:09,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-20 23:17:09,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9657572] [2021-11-20 23:17:09,766 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:17:09,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:17:09,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:17:09,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:17:09,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:17:09,816 INFO L87 Difference]: Start difference. First operand has 2733 states, 2016 states have (on average 1.4037698412698412) internal successors, (2830), 2091 states have internal predecessors, (2830), 627 states have call successors, (627), 98 states have call predecessors, (627), 98 states have return successors, (627), 607 states have call predecessors, (627), 627 states have call successors, (627) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 23:17:10,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:17:10,486 INFO L93 Difference]: Finished difference Result 8125 states and 12244 transitions. [2021-11-20 23:17:10,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:17:10,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-11-20 23:17:10,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:17:10,581 INFO L225 Difference]: With dead ends: 8125 [2021-11-20 23:17:10,582 INFO L226 Difference]: Without dead ends: 5402 [2021-11-20 23:17:10,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:17:10,629 INFO L933 BasicCegarLoop]: 5839 mSDtfsCounter, 4020 mSDsluCounter, 4000 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4020 SdHoareTripleChecker+Valid, 9839 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:17:10,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4020 Valid, 9839 Invalid, 10 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:17:10,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5402 states. [2021-11-20 23:17:11,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5402 to 5399. [2021-11-20 23:17:11,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5399 states, 3956 states have (on average 1.3963599595551062) internal successors, (5524), 4121 states have internal predecessors, (5524), 1248 states have call successors, (1248), 195 states have call predecessors, (1248), 194 states have return successors, (1246), 1206 states have call predecessors, (1246), 1246 states have call successors, (1246) [2021-11-20 23:17:11,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5399 states to 5399 states and 8018 transitions. [2021-11-20 23:17:11,217 INFO L78 Accepts]: Start accepts. Automaton has 5399 states and 8018 transitions. Word has length 17 [2021-11-20 23:17:11,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:17:11,218 INFO L470 AbstractCegarLoop]: Abstraction has 5399 states and 8018 transitions. [2021-11-20 23:17:11,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 23:17:11,219 INFO L276 IsEmpty]: Start isEmpty. Operand 5399 states and 8018 transitions. [2021-11-20 23:17:11,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-20 23:17:11,238 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:17:11,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:17:11,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:17:11,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:17:11,453 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:17:11,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:17:11,454 INFO L85 PathProgramCache]: Analyzing trace with hash -724110025, now seen corresponding path program 1 times [2021-11-20 23:17:11,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:17:11,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511221039] [2021-11-20 23:17:11,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:17:11,456 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:17:11,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:17:11,465 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:17:11,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 23:17:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:17:12,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:17:12,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:17:13,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:17:13,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:17:13,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:17:13,962 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:17:13,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511221039] [2021-11-20 23:17:13,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [511221039] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:17:13,962 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:17:13,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-20 23:17:13,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203204811] [2021-11-20 23:17:13,963 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:17:13,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:17:13,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:17:13,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:17:13,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:17:13,966 INFO L87 Difference]: Start difference. First operand 5399 states and 8018 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 23:17:14,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:17:14,659 INFO L93 Difference]: Finished difference Result 10703 states and 15909 transitions. [2021-11-20 23:17:14,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:17:14,660 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 54 [2021-11-20 23:17:14,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:17:14,711 INFO L225 Difference]: With dead ends: 10703 [2021-11-20 23:17:14,711 INFO L226 Difference]: Without dead ends: 5399 [2021-11-20 23:17:14,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:17:14,743 INFO L933 BasicCegarLoop]: 4031 mSDtfsCounter, 1 mSDsluCounter, 16112 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 20143 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:17:14,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 20143 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 23:17:14,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5399 states. [2021-11-20 23:17:15,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5399 to 5399. [2021-11-20 23:17:15,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5399 states, 3956 states have (on average 1.3961071789686552) internal successors, (5523), 4121 states have internal predecessors, (5523), 1248 states have call successors, (1248), 195 states have call predecessors, (1248), 194 states have return successors, (1246), 1206 states have call predecessors, (1246), 1246 states have call successors, (1246) [2021-11-20 23:17:15,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5399 states to 5399 states and 8017 transitions. [2021-11-20 23:17:15,091 INFO L78 Accepts]: Start accepts. Automaton has 5399 states and 8017 transitions. Word has length 54 [2021-11-20 23:17:15,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:17:15,092 INFO L470 AbstractCegarLoop]: Abstraction has 5399 states and 8017 transitions. [2021-11-20 23:17:15,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 23:17:15,093 INFO L276 IsEmpty]: Start isEmpty. Operand 5399 states and 8017 transitions. [2021-11-20 23:17:15,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-20 23:17:15,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:17:15,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:17:15,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:17:15,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:17:15,328 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:17:15,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:17:15,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1735445289, now seen corresponding path program 1 times [2021-11-20 23:17:15,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:17:15,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [307573317] [2021-11-20 23:17:15,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:17:15,330 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:17:15,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:17:15,331 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:17:15,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 23:17:16,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:17:16,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 23:17:16,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:17:18,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:17:18,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:17:20,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:17:20,032 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:17:20,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [307573317] [2021-11-20 23:17:20,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [307573317] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:17:20,032 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:17:20,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-20 23:17:20,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729919338] [2021-11-20 23:17:20,033 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:17:20,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 23:17:20,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:17:20,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 23:17:20,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-20 23:17:20,035 INFO L87 Difference]: Start difference. First operand 5399 states and 8017 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 8 states have internal predecessors, (70), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 23:17:23,121 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:17:48,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:17:48,155 INFO L93 Difference]: Finished difference Result 21523 states and 31998 transitions. [2021-11-20 23:17:48,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 23:17:48,156 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 8 states have internal predecessors, (70), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2021-11-20 23:17:48,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:17:48,321 INFO L225 Difference]: With dead ends: 21523 [2021-11-20 23:17:48,322 INFO L226 Difference]: Without dead ends: 16128 [2021-11-20 23:17:48,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-11-20 23:17:48,363 INFO L933 BasicCegarLoop]: 11272 mSDtfsCounter, 8221 mSDsluCounter, 63115 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 713 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8232 SdHoareTripleChecker+Valid, 74387 SdHoareTripleChecker+Invalid, 2004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 713 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:17:48,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8232 Valid, 74387 Invalid, 2004 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [713 Valid, 1290 Invalid, 1 Unknown, 0 Unchecked, 26.3s Time] [2021-11-20 23:17:48,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16128 states. [2021-11-20 23:17:49,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16128 to 16102. [2021-11-20 23:17:49,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16102 states, 11791 states have (on average 1.3966584683232974) internal successors, (16468), 12281 states have internal predecessors, (16468), 3731 states have call successors, (3731), 578 states have call predecessors, (3731), 579 states have return successors, (3736), 3608 states have call predecessors, (3736), 3729 states have call successors, (3736) [2021-11-20 23:17:49,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16102 states to 16102 states and 23935 transitions. [2021-11-20 23:17:49,627 INFO L78 Accepts]: Start accepts. Automaton has 16102 states and 23935 transitions. Word has length 61 [2021-11-20 23:17:49,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:17:49,628 INFO L470 AbstractCegarLoop]: Abstraction has 16102 states and 23935 transitions. [2021-11-20 23:17:49,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 8 states have internal predecessors, (70), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 23:17:49,629 INFO L276 IsEmpty]: Start isEmpty. Operand 16102 states and 23935 transitions. [2021-11-20 23:17:49,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-20 23:17:49,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:17:49,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:17:49,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:17:49,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:17:49,864 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:17:49,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:17:49,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1755782664, now seen corresponding path program 1 times [2021-11-20 23:17:49,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:17:49,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143041394] [2021-11-20 23:17:49,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:17:49,866 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:17:49,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:17:49,871 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:17:49,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 23:17:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:17:51,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:17:51,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:17:52,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:17:52,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:17:52,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:17:52,955 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:17:52,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143041394] [2021-11-20 23:17:52,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [143041394] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:17:52,956 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:17:52,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 23:17:52,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107983283] [2021-11-20 23:17:52,956 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:17:52,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 23:17:52,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:17:52,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 23:17:52,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:17:52,958 INFO L87 Difference]: Start difference. First operand 16102 states and 23935 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 23:18:00,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:18:00,186 INFO L93 Difference]: Finished difference Result 33348 states and 50566 transitions. [2021-11-20 23:18:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:18:00,187 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 61 [2021-11-20 23:18:00,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:18:00,350 INFO L225 Difference]: With dead ends: 33348 [2021-11-20 23:18:00,351 INFO L226 Difference]: Without dead ends: 25302 [2021-11-20 23:18:00,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-20 23:18:00,414 INFO L933 BasicCegarLoop]: 5959 mSDtfsCounter, 5676 mSDsluCounter, 26469 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 1084 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5946 SdHoareTripleChecker+Valid, 32428 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1084 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:18:00,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5946 Valid, 32428 Invalid, 1382 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1084 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2021-11-20 23:18:00,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25302 states. [2021-11-20 23:18:01,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25302 to 16111. [2021-11-20 23:18:01,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16111 states, 11800 states have (on average 1.3963559322033898) internal successors, (16477), 12290 states have internal predecessors, (16477), 3731 states have call successors, (3731), 578 states have call predecessors, (3731), 579 states have return successors, (3736), 3608 states have call predecessors, (3736), 3729 states have call successors, (3736) [2021-11-20 23:18:01,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16111 states to 16111 states and 23944 transitions. [2021-11-20 23:18:01,814 INFO L78 Accepts]: Start accepts. Automaton has 16111 states and 23944 transitions. Word has length 61 [2021-11-20 23:18:01,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:18:01,817 INFO L470 AbstractCegarLoop]: Abstraction has 16111 states and 23944 transitions. [2021-11-20 23:18:01,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 23:18:01,817 INFO L276 IsEmpty]: Start isEmpty. Operand 16111 states and 23944 transitions. [2021-11-20 23:18:01,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-20 23:18:01,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:18:01,830 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:18:01,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-20 23:18:02,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:18:02,055 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:18:02,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:18:02,056 INFO L85 PathProgramCache]: Analyzing trace with hash -205695727, now seen corresponding path program 1 times [2021-11-20 23:18:02,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:18:02,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134617506] [2021-11-20 23:18:02,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:18:02,058 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:18:02,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:18:02,061 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:18:02,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-20 23:18:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:18:03,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:18:03,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:18:05,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:18:05,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:18:06,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:18:06,235 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:18:06,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134617506] [2021-11-20 23:18:06,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [134617506] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:18:06,235 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:18:06,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-20 23:18:06,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648705847] [2021-11-20 23:18:06,236 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:18:06,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:18:06,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:18:06,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:18:06,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:18:06,238 INFO L87 Difference]: Start difference. First operand 16111 states and 23944 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-20 23:18:10,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:18:10,283 INFO L93 Difference]: Finished difference Result 32011 states and 47780 transitions. [2021-11-20 23:18:10,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:18:10,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 65 [2021-11-20 23:18:10,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:18:10,371 INFO L225 Difference]: With dead ends: 32011 [2021-11-20 23:18:10,372 INFO L226 Difference]: Without dead ends: 15991 [2021-11-20 23:18:10,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:18:10,440 INFO L933 BasicCegarLoop]: 3829 mSDtfsCounter, 6516 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6516 SdHoareTripleChecker+Valid, 3829 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1332 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:18:10,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6516 Valid, 3829 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1332 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-20 23:18:10,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15991 states. [2021-11-20 23:18:11,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15991 to 15991. [2021-11-20 23:18:11,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15991 states, 11698 states have (on average 1.3523679261412207) internal successors, (15820), 12182 states have internal predecessors, (15820), 3719 states have call successors, (3719), 572 states have call predecessors, (3719), 573 states have return successors, (3724), 3596 states have call predecessors, (3724), 3717 states have call successors, (3724) [2021-11-20 23:18:11,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15991 states to 15991 states and 23263 transitions. [2021-11-20 23:18:11,496 INFO L78 Accepts]: Start accepts. Automaton has 15991 states and 23263 transitions. Word has length 65 [2021-11-20 23:18:11,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:18:11,497 INFO L470 AbstractCegarLoop]: Abstraction has 15991 states and 23263 transitions. [2021-11-20 23:18:11,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-20 23:18:11,497 INFO L276 IsEmpty]: Start isEmpty. Operand 15991 states and 23263 transitions. [2021-11-20 23:18:11,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-20 23:18:11,507 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:18:11,508 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:18:11,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-20 23:18:11,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:18:11,723 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:18:11,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:18:11,724 INFO L85 PathProgramCache]: Analyzing trace with hash -143656113, now seen corresponding path program 1 times [2021-11-20 23:18:11,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:18:11,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787556537] [2021-11-20 23:18:11,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:18:11,726 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:18:11,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:18:11,728 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:18:11,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-20 23:18:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:18:13,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:18:13,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:18:14,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:18:14,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:18:15,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:18:15,854 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:18:15,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787556537] [2021-11-20 23:18:15,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [787556537] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:18:15,855 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:18:15,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 4 [2021-11-20 23:18:15,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498927972] [2021-11-20 23:18:15,855 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:18:15,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:18:15,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:18:15,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:18:15,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:18:15,857 INFO L87 Difference]: Start difference. First operand 15991 states and 23263 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 23:18:18,102 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:18:57,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:18:57,134 INFO L93 Difference]: Finished difference Result 16007 states and 23277 transitions. [2021-11-20 23:18:57,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:18:57,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2021-11-20 23:18:57,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:18:57,191 INFO L225 Difference]: With dead ends: 16007 [2021-11-20 23:18:57,192 INFO L226 Difference]: Without dead ends: 10687 [2021-11-20 23:18:57,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:18:57,214 INFO L933 BasicCegarLoop]: 7788 mSDtfsCounter, 7743 mSDsluCounter, 5294 mSDsCounter, 0 mSdLazyCounter, 2508 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7743 SdHoareTripleChecker+Valid, 13082 SdHoareTripleChecker+Invalid, 2511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:18:57,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7743 Valid, 13082 Invalid, 2511 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2508 Invalid, 1 Unknown, 0 Unchecked, 40.5s Time] [2021-11-20 23:18:57,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10687 states. [2021-11-20 23:18:57,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10687 to 10679. [2021-11-20 23:18:58,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10679 states, 7813 states have (on average 1.3518494816331754) internal successors, (10562), 8136 states have internal predecessors, (10562), 2482 states have call successors, (2482), 383 states have call predecessors, (2482), 383 states have return successors, (2485), 2399 states have call predecessors, (2485), 2480 states have call successors, (2485) [2021-11-20 23:18:58,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10679 states to 10679 states and 15529 transitions. [2021-11-20 23:18:58,063 INFO L78 Accepts]: Start accepts. Automaton has 10679 states and 15529 transitions. Word has length 65 [2021-11-20 23:18:58,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:18:58,065 INFO L470 AbstractCegarLoop]: Abstraction has 10679 states and 15529 transitions. [2021-11-20 23:18:58,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 23:18:58,066 INFO L276 IsEmpty]: Start isEmpty. Operand 10679 states and 15529 transitions. [2021-11-20 23:18:58,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-20 23:18:58,087 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:18:58,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:18:58,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-20 23:18:58,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:18:58,305 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:18:58,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:18:58,306 INFO L85 PathProgramCache]: Analyzing trace with hash 49835295, now seen corresponding path program 1 times [2021-11-20 23:18:58,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:18:58,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [3977849] [2021-11-20 23:18:58,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:18:58,308 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:18:58,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:18:58,310 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:18:58,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-20 23:18:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:18:59,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 1182 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:18:59,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:19:01,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:19:01,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:19:02,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:19:02,228 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:19:02,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [3977849] [2021-11-20 23:19:02,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [3977849] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:19:02,228 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:19:02,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-20 23:19:02,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935028289] [2021-11-20 23:19:02,229 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:19:02,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:19:02,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:19:02,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:19:02,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:19:02,230 INFO L87 Difference]: Start difference. First operand 10679 states and 15529 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-20 23:19:52,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:19:52,028 INFO L93 Difference]: Finished difference Result 26467 states and 38520 transitions. [2021-11-20 23:19:52,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:19:52,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2021-11-20 23:19:52,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:19:52,109 INFO L225 Difference]: With dead ends: 26467 [2021-11-20 23:19:52,109 INFO L226 Difference]: Without dead ends: 15942 [2021-11-20 23:19:52,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:19:52,143 INFO L933 BasicCegarLoop]: 7801 mSDtfsCounter, 7767 mSDsluCounter, 7969 mSDsCounter, 0 mSdLazyCounter, 3746 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7767 SdHoareTripleChecker+Valid, 15770 SdHoareTripleChecker+Invalid, 3753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 3746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:19:52,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7767 Valid, 15770 Invalid, 3753 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 3746 Invalid, 0 Unknown, 0 Unchecked, 49.0s Time] [2021-11-20 23:19:52,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15942 states. [2021-11-20 23:19:53,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15942 to 15934. [2021-11-20 23:19:53,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15934 states, 11656 states have (on average 1.3522649279341112) internal successors, (15762), 12137 states have internal predecessors, (15762), 3707 states have call successors, (3707), 570 states have call predecessors, (3707), 570 states have return successors, (3710), 3583 states have call predecessors, (3710), 3705 states have call successors, (3710) [2021-11-20 23:19:53,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15934 states to 15934 states and 23179 transitions. [2021-11-20 23:19:53,262 INFO L78 Accepts]: Start accepts. Automaton has 15934 states and 23179 transitions. Word has length 73 [2021-11-20 23:19:53,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:19:53,262 INFO L470 AbstractCegarLoop]: Abstraction has 15934 states and 23179 transitions. [2021-11-20 23:19:53,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-20 23:19:53,263 INFO L276 IsEmpty]: Start isEmpty. Operand 15934 states and 23179 transitions. [2021-11-20 23:19:53,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-20 23:19:53,278 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:19:53,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:19:53,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-20 23:19:53,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:19:53,495 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:19:53,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:19:53,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1405702881, now seen corresponding path program 1 times [2021-11-20 23:19:53,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:19:53,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121691664] [2021-11-20 23:19:53,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:19:53,498 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:19:53,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:19:53,500 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:19:53,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-20 23:19:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:19:54,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 1219 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:19:54,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:19:56,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:19:56,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:19:57,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:19:57,071 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:19:57,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [121691664] [2021-11-20 23:19:57,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [121691664] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:19:57,071 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:19:57,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-20 23:19:57,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515531477] [2021-11-20 23:19:57,071 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:19:57,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:19:57,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:19:57,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:19:57,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:19:57,073 INFO L87 Difference]: Start difference. First operand 15934 states and 23179 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-20 23:20:01,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:20:01,952 INFO L93 Difference]: Finished difference Result 43494 states and 64353 transitions. [2021-11-20 23:20:01,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:20:01,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 77 [2021-11-20 23:20:01,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:20:02,108 INFO L225 Difference]: With dead ends: 43494 [2021-11-20 23:20:02,108 INFO L226 Difference]: Without dead ends: 27726 [2021-11-20 23:20:02,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:20:02,175 INFO L933 BasicCegarLoop]: 4516 mSDtfsCounter, 2099 mSDsluCounter, 8463 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2606 SdHoareTripleChecker+Valid, 12979 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:20:02,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2606 Valid, 12979 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-20 23:20:02,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27726 states. [2021-11-20 23:20:03,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27726 to 27706. [2021-11-20 23:20:03,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27706 states, 20524 states have (on average 1.3693237185733775) internal successors, (28104), 21365 states have internal predecessors, (28104), 6611 states have call successors, (6611), 570 states have call predecessors, (6611), 570 states have return successors, (6622), 6427 states have call predecessors, (6622), 6609 states have call successors, (6622) [2021-11-20 23:20:04,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27706 states to 27706 states and 41337 transitions. [2021-11-20 23:20:04,067 INFO L78 Accepts]: Start accepts. Automaton has 27706 states and 41337 transitions. Word has length 77 [2021-11-20 23:20:04,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:20:04,067 INFO L470 AbstractCegarLoop]: Abstraction has 27706 states and 41337 transitions. [2021-11-20 23:20:04,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-20 23:20:04,068 INFO L276 IsEmpty]: Start isEmpty. Operand 27706 states and 41337 transitions. [2021-11-20 23:20:04,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-20 23:20:04,088 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:20:04,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:20:04,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-20 23:20:04,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:20:04,311 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:20:04,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:20:04,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1461524583, now seen corresponding path program 1 times [2021-11-20 23:20:04,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:20:04,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769485967] [2021-11-20 23:20:04,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:20:04,314 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:20:04,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:20:04,482 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:20:04,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-20 23:20:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 23:20:20,529 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 23:20:35,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 23:20:37,644 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-20 23:20:37,645 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 23:20:37,646 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 23:20:37,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-20 23:20:37,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:20:37,874 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:20:37,877 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 23:20:38,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:20:38 BoogieIcfgContainer [2021-11-20 23:20:38,094 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 23:20:38,094 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 23:20:38,095 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 23:20:38,095 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 23:20:38,095 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:17:07" (3/4) ... [2021-11-20 23:20:38,098 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 23:20:38,099 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 23:20:38,099 INFO L158 Benchmark]: Toolchain (without parser) took 279950.75ms. Allocated memory was 73.4MB in the beginning and 1.2GB in the end (delta: 1.2GB). Free memory was 48.5MB in the beginning and 612.7MB in the end (delta: -564.2MB). Peak memory consumption was 608.5MB. Max. memory is 16.1GB. [2021-11-20 23:20:38,100 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 52.4MB. Free memory was 32.6MB in the beginning and 32.6MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:20:38,100 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4732.83ms. Allocated memory was 73.4MB in the beginning and 216.0MB in the end (delta: 142.6MB). Free memory was 48.3MB in the beginning and 92.4MB in the end (delta: -44.1MB). Peak memory consumption was 106.6MB. Max. memory is 16.1GB. [2021-11-20 23:20:38,101 INFO L158 Benchmark]: Boogie Procedure Inliner took 551.98ms. Allocated memory is still 216.0MB. Free memory was 92.4MB in the beginning and 124.4MB in the end (delta: -32.0MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2021-11-20 23:20:38,101 INFO L158 Benchmark]: Boogie Preprocessor took 412.93ms. Allocated memory is still 216.0MB. Free memory was 124.4MB in the beginning and 72.0MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2021-11-20 23:20:38,102 INFO L158 Benchmark]: RCFGBuilder took 63550.27ms. Allocated memory was 216.0MB in the beginning and 864.0MB in the end (delta: 648.0MB). Free memory was 72.0MB in the beginning and 592.2MB in the end (delta: -520.2MB). Peak memory consumption was 464.4MB. Max. memory is 16.1GB. [2021-11-20 23:20:38,103 INFO L158 Benchmark]: TraceAbstraction took 210691.29ms. Allocated memory was 864.0MB in the beginning and 1.2GB in the end (delta: 381.7MB). Free memory was 592.2MB in the beginning and 612.7MB in the end (delta: -20.5MB). Peak memory consumption was 361.2MB. Max. memory is 16.1GB. [2021-11-20 23:20:38,103 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 1.2GB. Free memory is still 612.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:20:38,106 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 52.4MB. Free memory was 32.6MB in the beginning and 32.6MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4732.83ms. Allocated memory was 73.4MB in the beginning and 216.0MB in the end (delta: 142.6MB). Free memory was 48.3MB in the beginning and 92.4MB in the end (delta: -44.1MB). Peak memory consumption was 106.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 551.98ms. Allocated memory is still 216.0MB. Free memory was 92.4MB in the beginning and 124.4MB in the end (delta: -32.0MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 412.93ms. Allocated memory is still 216.0MB. Free memory was 124.4MB in the beginning and 72.0MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * RCFGBuilder took 63550.27ms. Allocated memory was 216.0MB in the beginning and 864.0MB in the end (delta: 648.0MB). Free memory was 72.0MB in the beginning and 592.2MB in the end (delta: -520.2MB). Peak memory consumption was 464.4MB. Max. memory is 16.1GB. * TraceAbstraction took 210691.29ms. Allocated memory was 864.0MB in the beginning and 1.2GB in the end (delta: 381.7MB). Free memory was 592.2MB in the beginning and 612.7MB in the end (delta: -20.5MB). Peak memory consumption was 361.2MB. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 1.2GB. Free memory is still 612.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 14623]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 12224. Possible FailurePath: [L5747] static char *driver_name = (char *)"SyncLink GT"; [L5748] static char *tty_driver_name = (char *)"synclink_gt"; [L5749] static char *tty_dev_prefix = (char *)"ttySLG"; [L5750-L5754] static struct pci_device_id pci_table[5U] = { {5056U, 112U, 4294967295U, 4294967295U, 0U, 0U, 0UL}, {5056U, 160U, 4294967295U, 4294967295U, 0U, 0U, 0UL}, {5056U, 128U, 4294967295U, 4294967295U, 0U, 0U, 0UL}, {5056U, 144U, 4294967295U, 4294967295U, 0U, 0U, 0UL}, {0U, 0U, 0U, 0U, 0U, 0U, 0UL}}; [L5755] struct pci_device_id const __mod_pci_device_table ; [L5758-L5773] static struct pci_driver pci_driver = {{(struct list_head *)0, (struct list_head *)0}, "synclink_gt", (struct pci_device_id const *)(& pci_table), & init_one, & remove_one, (int (*)(struct pci_dev * , pm_message_t ))0, (int (*)(struct pci_dev * , pm_message_t ))0, (int (*)(struct pci_dev * ))0, (int (*)(struct pci_dev * ))0, (void (*)(struct pci_dev * ))0, (struct pci_error_handlers *)0, {(char const *)0, (struct bus_type *)0, (struct module *)0, (char const *)0, (_Bool)0, (struct of_device_id const *)0, (int (*)(struct device * ))0, (int (*)(struct device * ))0, (void (*)(struct device * ))0, (int (*)(struct device * , pm_message_t ))0, (int (*)(struct device * ))0, (struct attribute_group const **)0, (struct dev_pm_ops const *)0, (struct driver_private *)0}, {{{{{0U}, 0U, 0U, (void *)0, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, (char const *)0, 0, 0UL}}}}, {(struct list_head *)0, (struct list_head *)0}}}; [L5774] static bool pci_registered ; [L5775] static struct slgt_info *slgt_device_list ; [L5776] static int slgt_device_count ; [L5777] static int ttymajor ; [L5778] static int debug_level ; [L5779] static int maxframe[32U] ; [L5780] static struct tty_driver *serial_driver ; [L5807-L5810] static MGSL_PARAMS default_params = {2UL, (unsigned char)0, (unsigned short)1, (unsigned char)3, 0UL, (unsigned char)255, (unsigned short)1, (unsigned char)0, (unsigned char)0, 9600UL, (unsigned char)8, (unsigned char)1, (unsigned char)0}; [L7413-L7440] static struct file_operations const synclink_gt_proc_fops = {& __this_module, & seq_lseek, & seq_read, (ssize_t (*)(struct file * , char const * , size_t , loff_t * ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (int (*)(struct file * , void * , int (*)(void * , char const * , int , loff_t , u64 , unsigned int ) ))0, (unsigned int (*)(struct file * , struct poll_table_struct * ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (int (*)(struct file * , struct vm_area_struct * ))0, & synclink_gt_proc_open, (int (*)(struct file * , fl_owner_t ))0, & single_release, (int (*)(struct file * , int ))0, (int (*)(struct kiocb * , int ))0, (int (*)(int , struct file * , int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct file * , struct page * , int , size_t , loff_t * , int ))0, (unsigned long (*)(struct file * , unsigned long , unsigned long , unsigned long , unsigned long ))0, (int (*)(int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct pipe_inode_info * , struct file * , loff_t * , size_t , unsigned int ))0, (ssize_t (*)(struct file * , loff_t * , struct pipe_inode_info * , size_t , unsigned int ))0, (int (*)(struct file * , long , struct file_lock ** ))0, (long (*)(struct file * , int , loff_t , loff_t ))0}; [L8109-L8142] static struct net_device_ops const hdlcdev_ops = {(int (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, & hdlcdev_open, & hdlcdev_close, & hdlc_start_xmit, (u16 (*)(struct net_device * , struct sk_buff * ))0, (void (*)(struct net_device * , int ))0, (void (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , void * ))0, (int (*)(struct net_device * ))0, & hdlcdev_ioctl, (int (*)(struct net_device * , struct ifmap * ))0, & hdlc_change_mtu, (int (*)(struct net_device * , struct neigh_parms * ))0, & hdlcdev_tx_timeout, (struct rtnl_link_stats64 *(*)(struct net_device * , struct rtnl_link_stats64 * ))0, (struct net_device_stats *(*)(struct net_device * ))0, (void (*)(struct net_device * , struct vlan_group * ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , struct netpoll_info * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , int , u8 * ))0, (int (*)(struct net_device * , int , u16 , u8 ))0, (int (*)(struct net_device * , int , int ))0, (int (*)(struct net_device * , int , struct ifla_vf_info * ))0, (int (*)(struct net_device * , int , struct nlattr ** ))0, (int (*)(struct net_device * , int , struct sk_buff * ))0, (int (*)(struct net_device * , u8 ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u16 ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u64 * , int ))0, (int (*)(struct net_device * , struct sk_buff const * , u16 , u32 ))0, (int (*)(struct net_device * , struct net_device * ))0, (int (*)(struct net_device * , struct net_device * ))0, (u32 (*)(struct net_device * , u32 ))0, (int (*)(struct net_device * , u32 ))0}; [L11815-L11816] static struct tty_port_operations const slgt_port_ops = {& carrier_raised, & dtr_rts, (void (*)(struct tty_port * ))0, (void (*)(struct tty_port * ))0, (int (*)(struct tty_port * , struct tty_struct * ))0, (void (*)(struct tty_port * ))0}; [L12074-L12087] static struct tty_operations const ops = {(struct tty_struct *(*)(struct tty_driver * , struct inode * , int ))0, (int (*)(struct tty_driver * , struct tty_struct * ))0, (void (*)(struct tty_driver * , struct tty_struct * ))0, & open, & close, (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * ))0, & write, & put_char, & flush_chars, & write_room, & chars_in_buffer, & ioctl, & slgt_compat_ioctl, & set_termios, & throttle, & unthrottle, & tx_hold, & tx_release, & hangup, & set_break, & flush_buffer, (void (*)(struct tty_struct * ))0, & wait_until_sent, & send_xchar, & tiocmget, & tiocmset, (int (*)(struct tty_struct * , struct winsize * ))0, (int (*)(struct tty_struct * , struct termiox * ))0, & get_icount, (int (*)(struct tty_driver * , int , char * ))0, (int (*)(struct tty_driver * , int ))0, (void (*)(struct tty_driver * , int , char ))0, & synclink_gt_proc_fops}; [L14221] int LDV_IN_INTERRUPT ; [L14627] int ldv_module_refcounter = 1; VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=0, pci_table={190:0}, serial_driver={0:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, ttymajor=0] [L14223] struct pci_dev *var_group1 ; [L14224] struct pci_device_id const *var_init_one_102_p1 ; [L14225] int res_init_one_102 ; [L14226] struct inode *var_group2 ; [L14227] struct file *var_group3 ; [L14228] int res_synclink_gt_proc_open_26 ; [L14229] struct net_device *var_group4 ; [L14230] int res_hdlcdev_open_33 ; [L14231] int res_hdlcdev_close_34 ; [L14232] struct ifreq *var_group5 ; [L14233] int var_hdlcdev_ioctl_35_p2 ; [L14234] struct tty_port *var_group6 ; [L14235] int var_dtr_rts_87_p1 ; [L14236] struct tty_struct *var_group7 ; [L14237] int res_open_5 ; [L14238] unsigned char const *var_write_10_p1 ; [L14239] int var_write_10_p2 ; [L14240] unsigned char var_put_char_11_p1 ; [L14241] unsigned int var_ioctl_19_p1 ; [L14242] unsigned long var_ioctl_19_p2 ; [L14243] unsigned int var_slgt_compat_ioctl_23_p1 ; [L14244] unsigned long var_slgt_compat_ioctl_23_p2 ; [L14245] char var_send_xchar_12_p1 ; [L14246] int var_set_break_30_p1 ; [L14247] int var_wait_until_sent_13_p1 ; [L14248] struct ktermios *var_group8 ; [L14249] unsigned int var_tiocmset_85_p1 ; [L14250] unsigned int var_tiocmset_85_p2 ; [L14251] struct serial_icounter_struct *var_group9 ; [L14252] int var_slgt_interrupt_56_p0 ; [L14253] void *var_slgt_interrupt_56_p1 ; [L14254] int ldv_s_pci_driver_pci_driver ; [L14255] int ldv_s_synclink_gt_proc_fops_file_operations ; [L14256] int ldv_s_hdlcdev_ops_net_device_ops ; [L14257] int ldv_s_ops_tty_operations ; [L14258] int tmp ; [L14259] int tmp___0 ; [L14260] int tmp___1 ; [L14263] ldv_s_pci_driver_pci_driver = 0 [L14264] ldv_s_synclink_gt_proc_fops_file_operations = 0 [L14265] ldv_s_hdlcdev_ops_net_device_ops = 0 [L14266] ldv_s_ops_tty_operations = 0 [L14267] LDV_IN_INTERRUPT = 1 [L14268] FCALL ldv_initialize() [L14269] CALL, EXPR slgt_init() [L12178] int rc ; [L12182] CALL, EXPR alloc_tty_driver(32) [L14781] CALL, EXPR ldv_malloc(sizeof(struct tty_driver)) VAL [\old(size)=281, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=0, pci_table={190:0}, serial_driver={0:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, ttymajor=0] [L14728] COND FALSE !(__VERIFIER_nondet_bool()) [L14729] return malloc(size); [L14781] RET, EXPR ldv_malloc(sizeof(struct tty_driver)) VAL [\old(arg0)=null, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, arg0=null, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct tty_driver))={288230376151712007:0}, ldv_module_refcounter=1, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=0, pci_table={190:0}, serial_driver={0:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, ttymajor=0] [L14781] return ldv_malloc(sizeof(struct tty_driver)); [L12182] RET, EXPR alloc_tty_driver(32) [L12182] serial_driver = alloc_tty_driver(32) [L12184] COND FALSE !((unsigned long )serial_driver == (unsigned long )((struct tty_driver *)0)) [L12192] serial_driver->owner = & __this_module [L12193] serial_driver->driver_name = (char const *)tty_driver_name [L12194] serial_driver->name = (char const *)tty_dev_prefix [L12195] serial_driver->major = ttymajor [L12196] serial_driver->minor_start = 64 [L12197] serial_driver->type = (short)3 [L12198] serial_driver->subtype = (short)1 [L12199] serial_driver->init_termios = tty_std_termios [L12200] serial_driver->init_termios.c_cflag = 3261U [L12201] serial_driver->init_termios.c_ispeed = 9600U [L12202] serial_driver->init_termios.c_ospeed = 9600U [L12203] serial_driver->flags = 12 [L12204] FCALL tty_set_operations(serial_driver, & ops) [L12205] CALL, EXPR tty_register_driver(serial_driver) [L14995] return __VERIFIER_nondet_int(); [L12205] RET, EXPR tty_register_driver(serial_driver) [L12205] rc = tty_register_driver(serial_driver) [L12207] COND FALSE !(rc < 0) [L12222] serial_driver->major [L12223] slgt_device_count = 0 [L12224] CALL, EXPR __pci_register_driver(& pci_driver, & __this_module, "synclink_gt") [L14739] return __VERIFIER_nondet_int(); [L12224] RET, EXPR __pci_register_driver(& pci_driver, & __this_module, "synclink_gt") [L12224] rc = __pci_register_driver(& pci_driver, & __this_module, "synclink_gt") [L12226] COND FALSE !(rc < 0) [L12233] pci_registered = (bool )1 VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, rc=0, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L12234] COND TRUE (unsigned long )slgt_device_list == (unsigned long )((struct slgt_info *)0) [L12240] return (0); VAL [\result=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, rc=0, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L14269] RET, EXPR slgt_init() [L14269] tmp = slgt_init() [L14271] COND FALSE !(tmp != 0) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_hdlcdev_ops_net_device_ops=0, ldv_s_ops_tty_operations=0, ldv_s_pci_driver_pci_driver=0, ldv_s_synclink_gt_proc_fops_file_operations=0, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp=0, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L14589] tmp___1 = __VERIFIER_nondet_int() [L14591] COND TRUE tmp___1 != 0 VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_hdlcdev_ops_net_device_ops=0, ldv_s_ops_tty_operations=0, ldv_s_pci_driver_pci_driver=0, ldv_s_synclink_gt_proc_fops_file_operations=0, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp=0, tmp___1=2147483648, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L14278] tmp___0 = __VERIFIER_nondet_int() [L14280] COND FALSE !(tmp___0 == 0) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_hdlcdev_ops_net_device_ops=0, ldv_s_ops_tty_operations=0, ldv_s_pci_driver_pci_driver=0, ldv_s_synclink_gt_proc_fops_file_operations=0, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp=0, tmp___0=2, tmp___1=2147483648, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L14283] COND FALSE !(tmp___0 == 1) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_hdlcdev_ops_net_device_ops=0, ldv_s_ops_tty_operations=0, ldv_s_pci_driver_pci_driver=0, ldv_s_synclink_gt_proc_fops_file_operations=0, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp=0, tmp___0=2, tmp___1=2147483648, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L14286] COND TRUE tmp___0 == 2 VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_hdlcdev_ops_net_device_ops=0, ldv_s_ops_tty_operations=0, ldv_s_pci_driver_pci_driver=0, ldv_s_synclink_gt_proc_fops_file_operations=0, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp=0, tmp___0=2, tmp___1=2147483648, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L14404] COND TRUE ldv_s_hdlcdev_ops_net_device_ops == 0 [L14406] CALL, EXPR hdlcdev_open(var_group4) [L7718] struct slgt_info *info ; [L7719] struct hdlc_device *tmp ; [L7720] int rc ; [L7721] unsigned long flags ; [L7722] int tmp___0 ; [L7723] raw_spinlock_t *tmp___1 ; [L7724] raw_spinlock_t *tmp___2 ; [L7725] raw_spinlock_t *tmp___3 ; VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, dev={4611826760210710560:67108896}, dev={4611826760210710560:67108896}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L7728] CALL, EXPR dev_to_hdlc(dev) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L5713] void *tmp ; [L5716] CALL, EXPR netdev_priv((struct net_device const *)dev) [L5583] return ((void *)dev + 2560U); VAL [\result={4611826760210710560:67111456}, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, dev={4611826760210710560:67108896}, dev={4611826760210710560:67108896}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L5716] RET, EXPR netdev_priv((struct net_device const *)dev) [L5716] tmp = netdev_priv((struct net_device const *)dev) [L5718] return ((struct hdlc_device *)tmp); VAL [\result={4611826760210710560:67111456}, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, dev={4611826760210710560:67108896}, dev={4611826760210710560:67108896}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp={4611826760210710560:67111456}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L7728] RET, EXPR dev_to_hdlc(dev) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, dev={4611826760210710560:67108896}, dev={4611826760210710560:67108896}, dev_to_hdlc(dev)={4611826760210710560:67111456}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L7728] tmp = dev_to_hdlc(dev) [L7729] EXPR tmp->priv [L7729] info = (struct slgt_info *)tmp->priv [L7730] CALL, EXPR ldv_try_module_get_1(& __this_module) [L14701] int tmp ; [L14704] CALL, EXPR ldv_try_module_get(module) [L14639] int module_get_succeeded ; VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, maxframe={192:0}, module={128:-9223372036854775808}, module={128:-9223372036854775808}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L14641] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) [L14643] CALL, EXPR ldv_undefined_int() [L14851] return __VERIFIER_nondet_int(); [L14643] RET, EXPR ldv_undefined_int() [L14643] module_get_succeeded = ldv_undefined_int() [L14645] COND TRUE module_get_succeeded == 1 [L14646] ldv_module_refcounter = ldv_module_refcounter + 1 [L14647] return (1); VAL [\result=1, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, module={128:-9223372036854775808}, module={128:-9223372036854775808}, module_get_succeeded=1, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L14704] RET, EXPR ldv_try_module_get(module) [L14704] tmp = ldv_try_module_get(module) [L14706] return (tmp); VAL [\result=1, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, module={128:-9223372036854775808}, module={128:-9223372036854775808}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp=1, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L7730] RET, EXPR ldv_try_module_get_1(& __this_module) [L7730] tmp___0 = ldv_try_module_get_1(& __this_module) [L7732] COND FALSE !(tmp___0 == 0) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, dev={4611826760210710560:67108896}, dev={4611826760210710560:67108896}, driver_name={8:0}, hdlcdev_ops={195:0}, info={0:1152921504606846976}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp={4611826760210710560:67111456}, tmp___0=1, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L7736] COND FALSE !(debug_level > 2) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, dev={4611826760210710560:67108896}, dev={4611826760210710560:67108896}, driver_name={8:0}, hdlcdev_ops={195:0}, info={0:1152921504606846976}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp={4611826760210710560:67111456}, tmp___0=1, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L7743] CALL, EXPR hdlc_open(dev) [L14825] return __VERIFIER_nondet_int(); [L7743] RET, EXPR hdlc_open(dev) [L7743] rc = hdlc_open(dev) [L7745] COND TRUE rc != 0 [L7746] return (rc); VAL [\result=-2147483648, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, dev={4611826760210710560:67108896}, dev={4611826760210710560:67108896}, driver_name={8:0}, hdlcdev_ops={195:0}, info={0:1152921504606846976}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, rc=2147483648, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp={4611826760210710560:67111456}, tmp___0=1, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L14406] RET, EXPR hdlcdev_open(var_group4) [L14406] res_hdlcdev_open_33 = hdlcdev_open(var_group4) [L14407] FCALL ldv_check_return_value(res_hdlcdev_open_33) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_hdlcdev_ops_net_device_ops=0, ldv_s_ops_tty_operations=0, ldv_s_pci_driver_pci_driver=0, ldv_s_synclink_gt_proc_fops_file_operations=0, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, res_hdlcdev_open_33=2147483648, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp=0, tmp___0=2, tmp___1=2147483648, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0, var_group4={4611826760210710560:67108896}] [L14409] COND TRUE res_hdlcdev_open_33 < 0 VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_hdlcdev_ops_net_device_ops=0, ldv_s_ops_tty_operations=0, ldv_s_pci_driver_pci_driver=0, ldv_s_synclink_gt_proc_fops_file_operations=0, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, res_hdlcdev_open_33=2147483648, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tmp=0, tmp___0=2, tmp___1=2147483648, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0, var_group4={4611826760210710560:67108896}] [L14611] CALL slgt_exit() [L12252] CALL slgt_cleanup() VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L12089] int rc ; [L12090] struct slgt_info *info ; [L12091] struct slgt_info *tmp ; [L12096] COND TRUE (unsigned long )serial_driver != (unsigned long )((struct tty_driver *)0) [L12097] info = slgt_device_list VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, info={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L12105] COND FALSE !((unsigned long )info != (unsigned long )((struct slgt_info *)0)) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, info={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L12112] CALL, EXPR tty_unregister_driver(serial_driver) [L15008] return __VERIFIER_nondet_int(); [L12112] RET, EXPR tty_unregister_driver(serial_driver) [L12112] rc = tty_unregister_driver(serial_driver) [L12114] COND FALSE !(rc != 0) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, info={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, rc=0, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L12124] FCALL put_tty_driver(serial_driver) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, info={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, rc=0, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L12128] info = slgt_device_list VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, info={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, rc=0, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L12136] COND FALSE !((unsigned long )info != (unsigned long )((struct slgt_info *)0)) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, info={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, rc=0, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L12142] info = slgt_device_list VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, info={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, rc=0, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L12162] COND FALSE !((unsigned long )info != (unsigned long )((struct slgt_info *)0)) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, info={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, rc=0, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L12168] COND TRUE (int )pci_registered [L12170] FCALL pci_unregister_driver(& pci_driver) [L12252] RET slgt_cleanup() VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L14611] RET slgt_exit() [L14615] CALL ldv_check_final_state() [L14691] COND TRUE ldv_module_refcounter != 1 VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L14693] CALL ldv_blast_assert() VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] [L14623] reach_error() VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={128:-9223372036854775808}, debug_level=0, default_params={193:0}, driver_name={8:0}, hdlcdev_ops={195:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, maxframe={192:0}, ops={197:0}, pci_driver={191:0}, pci_registered=1, pci_table={190:0}, serial_driver={288230376151712007:0}, slgt_device_count=0, slgt_device_list={0:0}, slgt_port_ops={196:0}, synclink_gt_proc_fops={194:0}, tty_dev_prefix={10:0}, tty_driver_name={9:0}, tty_std_termios={0:0}, ttymajor=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 99 procedures, 2733 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 210.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 138.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 42831 SdHoareTripleChecker+Valid, 129.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42043 mSDsluCounter, 182457 SdHoareTripleChecker+Invalid, 122.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 131422 mSDsCounter, 3146 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8213 IncrementalHoareTripleChecker+Invalid, 11361 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3146 mSolverCounterUnsat, 51035 mSDtfsCounter, 8213 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 939 GetRequests, 904 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27706occurred in iteration=8, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 8.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 9256 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 20.8s SatisfiabilityAnalysisTime, 17.8s InterpolantComputationTime, 547 NumberOfCodeBlocks, 547 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 930 ConstructedInterpolants, 0 QuantifiedInterpolants, 1959 SizeOfPredicates, 9 NumberOfNonLiveVariables, 9063 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-20 23:20:38,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c16d0f-5b9c-4ba3-aaca-213f0a9985af/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample