./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/bin/utaipan-G1rejxKTta --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 a085124b4007f801fe01aa89940f8a8fd2be0f47b82fa59b5624e0bb2a9cdb0a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 17:40:14,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:40:14,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:40:14,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:40:14,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:40:14,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:40:14,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:40:14,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:40:14,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:40:14,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:40:14,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:40:14,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:40:14,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:40:14,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:40:14,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:40:14,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:40:14,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:40:14,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:40:14,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:40:14,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:40:14,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:40:14,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:40:14,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:40:14,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:40:14,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:40:14,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:40:14,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:40:14,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:40:14,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:40:14,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:40:14,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:40:14,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:40:14,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:40:14,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:40:14,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:40:14,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:40:14,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:40:14,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:40:14,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:40:14,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:40:14,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:40:14,211 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-10-17 17:40:14,264 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:40:14,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:40:14,265 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:40:14,265 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:40:14,266 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:40:14,267 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:40:14,267 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:40:14,267 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:40:14,267 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:40:14,268 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:40:14,269 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:40:14,269 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:40:14,269 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:40:14,270 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:40:14,270 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:40:14,270 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:40:14,270 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:40:14,271 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:40:14,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:40:14,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:40:14,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:40:14,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:40:14,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:40:14,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:40:14,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:40:14,275 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:40:14,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:40:14,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:40:14,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:40:14,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:40:14,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:40:14,277 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:40:14,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:40:14,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:40:14,277 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:40:14,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:40:14,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:40:14,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:40:14,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a085124b4007f801fe01aa89940f8a8fd2be0f47b82fa59b5624e0bb2a9cdb0a [2022-10-17 17:40:14,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:40:14,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:40:14,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:40:14,642 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:40:14,643 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:40:14,644 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-10-17 17:40:14,725 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/bin/utaipan-G1rejxKTta/data/84cdcd061/983cdf1c3ada40f0a7ff05ec5cbec2ff/FLAG55e7fc24b [2022-10-17 17:40:15,987 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:40:15,989 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-10-17 17:40:16,054 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/bin/utaipan-G1rejxKTta/data/84cdcd061/983cdf1c3ada40f0a7ff05ec5cbec2ff/FLAG55e7fc24b [2022-10-17 17:40:16,141 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/bin/utaipan-G1rejxKTta/data/84cdcd061/983cdf1c3ada40f0a7ff05ec5cbec2ff [2022-10-17 17:40:16,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:40:16,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:40:16,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:40:16,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:40:16,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:40:16,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:40:16" (1/1) ... [2022-10-17 17:40:16,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ba3ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:16, skipping insertion in model container [2022-10-17 17:40:16,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:40:16" (1/1) ... [2022-10-17 17:40:16,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:40:16,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:40:19,804 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_909fc429-37af-42b5-8a10-fe1d3b3ab83a/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i[338465,338478] [2022-10-17 17:40:19,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:40:19,863 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:40:20,307 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_909fc429-37af-42b5-8a10-fe1d3b3ab83a/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i[338465,338478] [2022-10-17 17:40:20,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:40:20,644 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:40:20,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:20 WrapperNode [2022-10-17 17:40:20,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:40:20,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:40:20,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:40:20,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:40:20,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:20" (1/1) ... [2022-10-17 17:40:20,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:20" (1/1) ... [2022-10-17 17:40:21,122 INFO L138 Inliner]: procedures = 396, calls = 1846, calls flagged for inlining = 235, calls inlined = 222, statements flattened = 5742 [2022-10-17 17:40:21,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:40:21,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:40:21,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:40:21,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:40:21,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:20" (1/1) ... [2022-10-17 17:40:21,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:20" (1/1) ... [2022-10-17 17:40:21,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:20" (1/1) ... [2022-10-17 17:40:21,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:20" (1/1) ... [2022-10-17 17:40:21,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:20" (1/1) ... [2022-10-17 17:40:21,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:20" (1/1) ... [2022-10-17 17:40:21,439 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:20" (1/1) ... [2022-10-17 17:40:21,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:20" (1/1) ... [2022-10-17 17:40:21,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:40:21,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:40:21,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:40:21,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:40:21,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:20" (1/1) ... [2022-10-17 17:40:21,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:40:21,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:40:21,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:40:21,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:40:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 17:40:21,584 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 17:40:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 17:40:21,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 17:40:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-10-17 17:40:21,584 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-10-17 17:40:21,585 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-10-17 17:40:21,585 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-10-17 17:40:21,585 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mii_read [2022-10-17 17:40:21,585 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mii_read [2022-10-17 17:40:21,585 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_resume [2022-10-17 17:40:21,585 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_resume [2022-10-17 17:40:21,586 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 17:40:21,586 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 17:40:21,586 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_drv_probe [2022-10-17 17:40:21,586 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_drv_probe [2022-10-17 17:40:21,586 INFO L130 BoogieDeclarations]: Found specification of procedure no_printk [2022-10-17 17:40:21,586 INFO L138 BoogieDeclarations]: Found implementation of procedure no_printk [2022-10-17 17:40:21,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-10-17 17:40:21,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-10-17 17:40:21,587 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-10-17 17:40:21,587 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-10-17 17:40:21,587 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-10-17 17:40:21,587 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-10-17 17:40:21,587 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-10-17 17:40:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-10-17 17:40:21,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-17 17:40:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-17 17:40:21,588 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 17:40:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 17:40:21,588 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_set_multicast_list [2022-10-17 17:40:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_set_multicast_list [2022-10-17 17:40:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_set_hw_mac_address [2022-10-17 17:40:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_set_hw_mac_address [2022-10-17 17:40:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2022-10-17 17:40:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2022-10-17 17:40:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-10-17 17:40:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-10-17 17:40:21,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:40:21,590 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-10-17 17:40:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-10-17 17:40:21,590 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_drv_remove [2022-10-17 17:40:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_drv_remove [2022-10-17 17:40:21,590 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_multicast_update [2022-10-17 17:40:21,591 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_multicast_update [2022-10-17 17:40:21,591 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-17 17:40:21,591 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-17 17:40:21,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 17:40:21,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-10-17 17:40:21,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-10-17 17:40:21,591 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-17 17:40:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-17 17:40:21,592 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_writefifo [2022-10-17 17:40:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_writefifo [2022-10-17 17:40:21,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 17:40:21,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-10-17 17:40:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-10-17 17:40:21,593 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_irqhandler [2022-10-17 17:40:21,593 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_irqhandler [2022-10-17 17:40:21,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:40:21,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 17:40:21,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 17:40:21,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2022-10-17 17:40:21,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2022-10-17 17:40:21,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-10-17 17:40:21,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-10-17 17:40:21,594 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_disable_resources [2022-10-17 17:40:21,594 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_disable_resources [2022-10-17 17:40:21,594 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_get_rxstatus [2022-10-17 17:40:21,594 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_get_rxstatus [2022-10-17 17:40:21,594 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_read [2022-10-17 17:40:21,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_read [2022-10-17 17:40:21,595 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_getregslen [2022-10-17 17:40:21,595 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_getregslen [2022-10-17 17:40:21,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:40:21,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:40:21,595 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-10-17 17:40:21,595 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-10-17 17:40:21,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-17 17:40:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-17 17:40:21,596 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-17 17:40:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-17 17:40:21,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:40:21,596 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 17:40:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 17:40:21,597 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-10-17 17:40:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-10-17 17:40:21,597 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-10-17 17:40:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-10-17 17:40:21,597 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mii_write [2022-10-17 17:40:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mii_write [2022-10-17 17:40:21,597 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_complete [2022-10-17 17:40:21,598 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_complete [2022-10-17 17:40:21,598 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-10-17 17:40:21,598 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-10-17 17:40:21,598 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-17 17:40:21,598 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-17 17:40:21,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-10-17 17:40:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-10-17 17:40:21,599 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32_rep [2022-10-17 17:40:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32_rep [2022-10-17 17:40:21,599 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-10-17 17:40:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-10-17 17:40:21,599 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource_byname [2022-10-17 17:40:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource_byname [2022-10-17 17:40:21,600 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-10-17 17:40:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-10-17 17:40:21,600 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-17 17:40:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-17 17:40:21,600 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-10-17 17:40:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-10-17 17:40:21,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:40:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:40:21,601 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-17 17:40:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-17 17:40:21,601 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-10-17 17:40:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-10-17 17:40:21,665 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_get_txstatus [2022-10-17 17:40:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_get_txstatus [2022-10-17 17:40:21,665 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-10-17 17:40:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-10-17 17:40:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-10-17 17:40:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-10-17 17:40:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 17:40:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 17:40:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 17:40:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 17:40:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_readfifo [2022-10-17 17:40:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_readfifo [2022-10-17 17:40:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_open [2022-10-17 17:40:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_open [2022-10-17 17:40:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2022-10-17 17:40:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2022-10-17 17:40:21,667 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_get_eeprom_len [2022-10-17 17:40:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_get_eeprom_len [2022-10-17 17:40:21,667 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_readfifo_shift [2022-10-17 17:40:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_readfifo_shift [2022-10-17 17:40:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_suspend [2022-10-17 17:40:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_suspend [2022-10-17 17:40:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_read_mac_address [2022-10-17 17:40:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_read_mac_address [2022-10-17 17:40:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_write [2022-10-17 17:40:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_write [2022-10-17 17:40:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2022-10-17 17:40:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2022-10-17 17:40:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 17:40:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 17:40:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-10-17 17:40:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-10-17 17:40:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-10-17 17:40:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-10-17 17:40:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_write [2022-10-17 17:40:21,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_write [2022-10-17 17:40:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:40:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-10-17 17:40:21,670 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-10-17 17:40:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:40:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_reg_write [2022-10-17 17:40:21,670 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_reg_write [2022-10-17 17:40:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_nwayreset [2022-10-17 17:40:21,670 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_nwayreset [2022-10-17 17:40:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_free_resources [2022-10-17 17:40:21,671 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_free_resources [2022-10-17 17:40:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_disable_irq_chip [2022-10-17 17:40:21,671 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_disable_irq_chip [2022-10-17 17:40:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 17:40:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-17 17:40:21,671 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-17 17:40:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_eeprom_send_cmd [2022-10-17 17:40:21,672 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_eeprom_send_cmd [2022-10-17 17:40:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-17 17:40:21,672 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-17 17:40:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_phy_adjust_link [2022-10-17 17:40:21,672 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_phy_adjust_link [2022-10-17 17:40:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_reg_read [2022-10-17 17:40:21,672 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_reg_read [2022-10-17 17:40:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-10-17 17:40:21,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-10-17 17:40:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-10-17 17:40:21,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-10-17 17:40:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_update_txcounters [2022-10-17 17:40:21,673 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_update_txcounters [2022-10-17 17:40:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_read_shift [2022-10-17 17:40:21,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_read_shift [2022-10-17 17:40:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-10-17 17:40:21,674 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-10-17 17:40:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_write_shift [2022-10-17 17:40:21,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_write_shift [2022-10-17 17:40:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-17 17:40:21,675 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-17 17:40:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-17 17:40:21,675 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-17 17:40:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-10-17 17:40:21,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-10-17 17:40:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-10-17 17:40:21,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-10-17 17:40:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_phy_enable_external [2022-10-17 17:40:21,676 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_phy_enable_external [2022-10-17 17:40:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:40:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_read [2022-10-17 17:40:21,677 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_read [2022-10-17 17:40:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 17:40:21,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 17:40:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-10-17 17:40:21,677 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-10-17 17:40:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-10-17 17:40:21,677 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-10-17 17:40:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_soft_reset [2022-10-17 17:40:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_soft_reset [2022-10-17 17:40:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_eeprom_enable_access [2022-10-17 17:40:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_eeprom_enable_access [2022-10-17 17:40:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2022-10-17 17:40:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2022-10-17 17:40:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure spin_is_locked [2022-10-17 17:40:21,679 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_is_locked [2022-10-17 17:40:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_stop [2022-10-17 17:40:21,679 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_stop [2022-10-17 17:40:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-10-17 17:40:21,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-10-17 17:40:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_writefifo_shift [2022-10-17 17:40:21,680 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_writefifo_shift [2022-10-17 17:40:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-10-17 17:40:21,680 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-10-17 17:40:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-10-17 17:40:21,680 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-10-17 17:40:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:40:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2022-10-17 17:40:21,681 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2022-10-17 17:40:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-10-17 17:40:21,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-10-17 17:40:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-10-17 17:40:21,681 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-10-17 17:40:22,847 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:40:22,856 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:40:23,334 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 17:40:27,527 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:40:29,844 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:40:29,845 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 17:40:29,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:40:29 BoogieIcfgContainer [2022-10-17 17:40:29,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:40:29,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:40:29,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:40:29,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:40:29,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:40:16" (1/3) ... [2022-10-17 17:40:29,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c573f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:40:29, skipping insertion in model container [2022-10-17 17:40:29,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:40:20" (2/3) ... [2022-10-17 17:40:29,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c573f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:40:29, skipping insertion in model container [2022-10-17 17:40:29,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:40:29" (3/3) ... [2022-10-17 17:40:29,861 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-10-17 17:40:29,883 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:40:29,883 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 17:40:29,994 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:40:30,001 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1a1b844b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:40:30,002 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 17:40:30,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 1875 states, 1077 states have (on average 1.27669452181987) internal successors, (1375), 1130 states have internal predecessors, (1375), 691 states have call successors, (691), 108 states have call predecessors, (691), 107 states have return successors, (683), 670 states have call predecessors, (683), 683 states have call successors, (683) [2022-10-17 17:40:30,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-17 17:40:30,026 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:40:30,027 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:40:30,027 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:40:30,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:40:30,034 INFO L85 PathProgramCache]: Analyzing trace with hash 714690310, now seen corresponding path program 1 times [2022-10-17 17:40:30,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:40:30,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134283933] [2022-10-17 17:40:30,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:40:30,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:40:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:40:31,082 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-17 17:40:31,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:40:31,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134283933] [2022-10-17 17:40:31,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134283933] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:40:31,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:40:31,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 17:40:31,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302556634] [2022-10-17 17:40:31,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:40:31,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 17:40:31,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:40:31,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 17:40:31,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:40:31,130 INFO L87 Difference]: Start difference. First operand has 1875 states, 1077 states have (on average 1.27669452181987) internal successors, (1375), 1130 states have internal predecessors, (1375), 691 states have call successors, (691), 108 states have call predecessors, (691), 107 states have return successors, (683), 670 states have call predecessors, (683), 683 states have call successors, (683) Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-17 17:40:32,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:40:32,891 INFO L93 Difference]: Finished difference Result 3730 states and 5698 transitions. [2022-10-17 17:40:32,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 17:40:32,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 35 [2022-10-17 17:40:32,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:40:32,942 INFO L225 Difference]: With dead ends: 3730 [2022-10-17 17:40:32,943 INFO L226 Difference]: Without dead ends: 1857 [2022-10-17 17:40:32,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 17:40:32,977 INFO L413 NwaCegarLoop]: 2433 mSDtfsCounter, 2720 mSDsluCounter, 5445 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2722 SdHoareTripleChecker+Valid, 7296 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-17 17:40:32,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2722 Valid, 7296 Invalid, 883 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-17 17:40:33,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2022-10-17 17:40:33,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1857. [2022-10-17 17:40:33,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1857 states, 1069 states have (on average 1.2609915809167447) internal successors, (1348), 1115 states have internal predecessors, (1348), 681 states have call successors, (681), 108 states have call predecessors, (681), 106 states have return successors, (678), 665 states have call predecessors, (678), 678 states have call successors, (678) [2022-10-17 17:40:33,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1857 states to 1857 states and 2707 transitions. [2022-10-17 17:40:33,334 INFO L78 Accepts]: Start accepts. Automaton has 1857 states and 2707 transitions. Word has length 35 [2022-10-17 17:40:33,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:40:33,335 INFO L495 AbstractCegarLoop]: Abstraction has 1857 states and 2707 transitions. [2022-10-17 17:40:33,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-17 17:40:33,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1857 states and 2707 transitions. [2022-10-17 17:40:33,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-17 17:40:33,340 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:40:33,340 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:40:33,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:40:33,341 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:40:33,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:40:33,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1477583429, now seen corresponding path program 1 times [2022-10-17 17:40:33,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:40:33,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358520344] [2022-10-17 17:40:33,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:40:33,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:40:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:40:33,893 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-17 17:40:33,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:40:33,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358520344] [2022-10-17 17:40:33,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358520344] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:40:33,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:40:33,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 17:40:33,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071545601] [2022-10-17 17:40:33,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:40:33,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 17:40:33,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:40:33,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 17:40:33,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:40:33,898 INFO L87 Difference]: Start difference. First operand 1857 states and 2707 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-17 17:40:36,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:40:36,485 INFO L93 Difference]: Finished difference Result 3700 states and 5414 transitions. [2022-10-17 17:40:36,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 17:40:36,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 40 [2022-10-17 17:40:36,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:40:36,537 INFO L225 Difference]: With dead ends: 3700 [2022-10-17 17:40:36,537 INFO L226 Difference]: Without dead ends: 3622 [2022-10-17 17:40:36,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 17:40:36,544 INFO L413 NwaCegarLoop]: 3113 mSDtfsCounter, 2690 mSDsluCounter, 9509 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 11748 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-10-17 17:40:36,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2690 Valid, 11748 Invalid, 1184 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-10-17 17:40:36,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2022-10-17 17:40:36,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3621. [2022-10-17 17:40:36,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 2086 states have (on average 1.2607861936720997) internal successors, (2630), 2173 states have internal predecessors, (2630), 1323 states have call successors, (1323), 213 states have call predecessors, (1323), 211 states have return successors, (1342), 1295 states have call predecessors, (1342), 1320 states have call successors, (1342) [2022-10-17 17:40:36,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 5295 transitions. [2022-10-17 17:40:36,955 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 5295 transitions. Word has length 40 [2022-10-17 17:40:36,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:40:36,955 INFO L495 AbstractCegarLoop]: Abstraction has 3621 states and 5295 transitions. [2022-10-17 17:40:36,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-17 17:40:36,955 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 5295 transitions. [2022-10-17 17:40:36,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-10-17 17:40:36,998 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:40:36,998 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 11, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:40:36,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 17:40:36,999 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:40:36,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:40:36,999 INFO L85 PathProgramCache]: Analyzing trace with hash -752815297, now seen corresponding path program 1 times [2022-10-17 17:40:37,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:40:37,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370095895] [2022-10-17 17:40:37,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:40:37,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:40:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:40:39,625 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2022-10-17 17:40:39,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:40:39,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370095895] [2022-10-17 17:40:39,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370095895] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 17:40:39,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135348713] [2022-10-17 17:40:39,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:40:39,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:40:39,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:40:39,632 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:40:39,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909fc429-37af-42b5-8a10-fe1d3b3ab83a/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 17:40:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:40:41,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 3489 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-17 17:40:41,115 INFO L286 TraceCheckSpWp]: Computing forward predicates...