./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dc77dba7d0a42d28a45b5d35d96b429d0886353a9713255eb9fc5a14ecd01454 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 20:46:41,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 20:46:41,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 20:46:41,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 20:46:41,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 20:46:41,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 20:46:41,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 20:46:41,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 20:46:41,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 20:46:41,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 20:46:41,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 20:46:41,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 20:46:41,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 20:46:41,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 20:46:41,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 20:46:41,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 20:46:41,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 20:46:41,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 20:46:41,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 20:46:41,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 20:46:41,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 20:46:41,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 20:46:41,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 20:46:41,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 20:46:41,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 20:46:41,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 20:46:41,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 20:46:41,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 20:46:41,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 20:46:41,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 20:46:41,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 20:46:41,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 20:46:41,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 20:46:41,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 20:46:41,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 20:46:41,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 20:46:41,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 20:46:41,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 20:46:41,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 20:46:41,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 20:46:41,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 20:46:41,364 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 20:46:41,388 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 20:46:41,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 20:46:41,391 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 20:46:41,391 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 20:46:41,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 20:46:41,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 20:46:41,392 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 20:46:41,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 20:46:41,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 20:46:41,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 20:46:41,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 20:46:41,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 20:46:41,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 20:46:41,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 20:46:41,394 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 20:46:41,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 20:46:41,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 20:46:41,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 20:46:41,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 20:46:41,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 20:46:41,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 20:46:41,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 20:46:41,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 20:46:41,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 20:46:41,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 20:46:41,400 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 20:46:41,400 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 20:46:41,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 20:46:41,401 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 20:46:41,401 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc77dba7d0a42d28a45b5d35d96b429d0886353a9713255eb9fc5a14ecd01454 [2021-11-06 20:46:41,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 20:46:41,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 20:46:41,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 20:46:41,603 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 20:46:41,610 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 20:46:41,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-06 20:46:41,656 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f52d6327/fa0e7b2fc4e44381964ca354ee27e6f7/FLAG463998098 [2021-11-06 20:46:42,534 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 20:46:42,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-06 20:46:42,611 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f52d6327/fa0e7b2fc4e44381964ca354ee27e6f7/FLAG463998098 [2021-11-06 20:46:42,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f52d6327/fa0e7b2fc4e44381964ca354ee27e6f7 [2021-11-06 20:46:42,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 20:46:42,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 20:46:42,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 20:46:42,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 20:46:42,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 20:46:42,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:46:42" (1/1) ... [2021-11-06 20:46:42,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56eaa5fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:46:42, skipping insertion in model container [2021-11-06 20:46:42,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:46:42" (1/1) ... [2021-11-06 20:46:42,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 20:46:42,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 20:46:51,899 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[886222,886235] [2021-11-06 20:46:51,901 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[886391,886404] [2021-11-06 20:46:51,902 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[886558,886571] [2021-11-06 20:46:51,902 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[886726,886739] [2021-11-06 20:46:51,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 20:46:52,055 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 20:46:52,540 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[886222,886235] [2021-11-06 20:46:52,541 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[886391,886404] [2021-11-06 20:46:52,541 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[886558,886571] [2021-11-06 20:46:52,541 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[886726,886739] [2021-11-06 20:46:52,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 20:46:53,213 INFO L208 MainTranslator]: Completed translation [2021-11-06 20:46:53,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:46:53 WrapperNode [2021-11-06 20:46:53,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 20:46:53,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 20:46:53,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 20:46:53,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 20:46:53,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:46:53" (1/1) ... [2021-11-06 20:46:53,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:46:53" (1/1) ... [2021-11-06 20:46:54,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 20:46:54,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 20:46:54,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 20:46:54,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 20:46:54,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:46:53" (1/1) ... [2021-11-06 20:46:54,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:46:53" (1/1) ... [2021-11-06 20:46:55,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:46:53" (1/1) ... [2021-11-06 20:46:55,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:46:53" (1/1) ... [2021-11-06 20:46:55,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:46:53" (1/1) ... [2021-11-06 20:46:55,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:46:53" (1/1) ... [2021-11-06 20:46:55,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:46:53" (1/1) ... [2021-11-06 20:46:56,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 20:46:56,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 20:46:56,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 20:46:56,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 20:46:56,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:46:53" (1/1) ... [2021-11-06 20:46:56,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 20:46:56,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 20:46:56,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 20:46:56,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 20:46:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2021-11-06 20:46:56,434 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2021-11-06 20:46:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2021-11-06 20:46:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2021-11-06 20:46:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2021-11-06 20:46:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2021-11-06 20:46:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2021-11-06 20:46:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2021-11-06 20:46:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 20:46:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 20:46:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2021-11-06 20:46:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2021-11-06 20:46:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 20:46:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 20:46:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2021-11-06 20:46:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2021-11-06 20:46:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2021-11-06 20:46:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2021-11-06 20:46:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 20:46:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 20:46:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 20:46:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-06 20:46:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ethtool_stats [2021-11-06 20:46:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ethtool_stats [2021-11-06 20:46:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2021-11-06 20:46:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2021-11-06 20:46:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2021-11-06 20:46:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2021-11-06 20:46:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 20:46:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 20:46:56,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 20:46:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 20:46:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2021-11-06 20:46:56,438 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2021-11-06 20:46:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2021-11-06 20:46:56,438 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2021-11-06 20:46:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2021-11-06 20:46:56,439 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2021-11-06 20:46:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 20:46:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2021-11-06 20:46:56,439 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2021-11-06 20:46:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2021-11-06 20:46:56,439 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2021-11-06 20:46:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2021-11-06 20:46:56,439 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2021-11-06 20:46:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2021-11-06 20:46:56,440 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2021-11-06 20:46:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2021-11-06 20:46:56,440 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2021-11-06 20:46:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 20:46:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2021-11-06 20:46:56,440 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2021-11-06 20:46:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 20:46:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 20:46:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2021-11-06 20:46:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2021-11-06 20:46:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2021-11-06 20:46:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2021-11-06 20:46:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2021-11-06 20:46:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2021-11-06 20:46:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2021-11-06 20:46:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2021-11-06 20:46:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2021-11-06 20:46:56,442 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2021-11-06 20:46:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2021-11-06 20:46:56,442 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2021-11-06 20:46:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2021-11-06 20:46:56,442 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2021-11-06 20:46:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 20:46:56,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 20:46:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2021-11-06 20:46:56,443 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2021-11-06 20:46:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 20:46:56,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 20:46:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 20:46:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 20:46:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2021-11-06 20:46:56,443 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2021-11-06 20:46:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2021-11-06 20:46:56,443 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2021-11-06 20:46:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2021-11-06 20:46:56,444 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2021-11-06 20:46:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2021-11-06 20:46:56,444 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2021-11-06 20:46:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 20:46:56,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 20:46:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 20:46:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 20:46:56,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 20:46:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2021-11-06 20:46:56,445 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2021-11-06 20:48:35,022 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break: ldv_switch_6_#res := 0; [2021-11-06 20:48:35,023 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 20:48:35,023 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-06 20:48:35,023 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-06 20:48:35,023 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 20:48:35,024 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#4: ldv_switch_6_#res := 0; [2021-11-06 20:48:35,024 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#3: ldv_switch_6_#res := 0; [2021-11-06 20:48:35,024 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#2: ldv_switch_6_#res := 0; [2021-11-06 20:48:35,024 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break#2: ldv_switch_5_#res := 0; [2021-11-06 20:48:35,024 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0; [2021-11-06 20:48:35,024 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#3: ldv_switch_4_#res := 0; [2021-11-06 20:48:35,024 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break: ldv_switch_5_#res := 0; [2021-11-06 20:48:35,024 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break#2: ldv_switch_8_#res := 0; [2021-11-06 20:48:35,025 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-06 20:48:35,025 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-06 20:48:35,025 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 20:48:35,025 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res := 0; [2021-11-06 20:48:35,025 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 20:48:35,026 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-06 20:48:35,026 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_7_switch_break: ldv_switch_7_#res := 0; [2021-11-06 20:48:35,027 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-06 20:48:35,027 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_9_switch_break: ldv_switch_9_#res := 0; [2021-11-06 20:48:35,027 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break: ldv_switch_8_#res := 0; [2021-11-06 20:48:35,027 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-06 20:48:35,027 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 20:48:35,142 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 20:48:35,142 INFO L299 CfgBuilder]: Removed 11171 assume(true) statements. [2021-11-06 20:48:35,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:48:35 BoogieIcfgContainer [2021-11-06 20:48:35,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 20:48:35,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 20:48:35,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 20:48:35,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 20:48:35,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:46:42" (1/3) ... [2021-11-06 20:48:35,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b4736a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:48:35, skipping insertion in model container [2021-11-06 20:48:35,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:46:53" (2/3) ... [2021-11-06 20:48:35,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b4736a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:48:35, skipping insertion in model container [2021-11-06 20:48:35,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:48:35" (3/3) ... [2021-11-06 20:48:35,158 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-06 20:48:35,161 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 20:48:35,162 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 119 error locations. [2021-11-06 20:48:35,230 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 20:48:35,236 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=PETRI_NET, 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 [2021-11-06 20:48:35,237 INFO L340 AbstractCegarLoop]: Starting to check reachability of 119 error locations. [2021-11-06 20:48:35,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 11633 states, 11343 states have (on average 1.3931058802785858) internal successors, (15802), 11470 states have internal predecessors, (15802), 134 states have call successors, (134), 37 states have call predecessors, (134), 37 states have return successors, (134), 132 states have call predecessors, (134), 134 states have call successors, (134) [2021-11-06 20:48:35,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-06 20:48:35,369 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:48:35,370 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:48:35,370 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_resumeErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_resumeErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 116 more)] === [2021-11-06 20:48:35,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:48:35,375 INFO L85 PathProgramCache]: Analyzing trace with hash 27599455, now seen corresponding path program 1 times [2021-11-06 20:48:35,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:48:35,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812227503] [2021-11-06 20:48:35,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:48:35,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:48:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:48:37,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:48:37,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:48:37,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812227503] [2021-11-06 20:48:37,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812227503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:48:37,152 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:48:37,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:48:37,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193061200] [2021-11-06 20:48:37,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:48:37,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:48:37,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:48:37,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:48:37,193 INFO L87 Difference]: Start difference. First operand has 11633 states, 11343 states have (on average 1.3931058802785858) internal successors, (15802), 11470 states have internal predecessors, (15802), 134 states have call successors, (134), 37 states have call predecessors, (134), 37 states have return successors, (134), 132 states have call predecessors, (134), 134 states have call successors, (134) Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:48:40,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:48:40,456 INFO L93 Difference]: Finished difference Result 32939 states and 45932 transitions. [2021-11-06 20:48:40,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:48:40,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 254 [2021-11-06 20:48:40,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:48:40,569 INFO L225 Difference]: With dead ends: 32939 [2021-11-06 20:48:40,569 INFO L226 Difference]: Without dead ends: 21378 [2021-11-06 20:48:40,676 INFO L786 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 [2021-11-06 20:48:40,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21378 states. [2021-11-06 20:48:41,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21378 to 21242. [2021-11-06 20:48:41,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21242 states, 20781 states have (on average 1.36239834464174) internal successors, (28312), 20917 states have internal predecessors, (28312), 268 states have call successors, (268), 74 states have call predecessors, (268), 74 states have return successors, (268), 264 states have call predecessors, (268), 268 states have call successors, (268) [2021-11-06 20:48:41,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21242 states to 21242 states and 28848 transitions. [2021-11-06 20:48:41,309 INFO L78 Accepts]: Start accepts. Automaton has 21242 states and 28848 transitions. Word has length 254 [2021-11-06 20:48:41,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:48:41,310 INFO L470 AbstractCegarLoop]: Abstraction has 21242 states and 28848 transitions. [2021-11-06 20:48:41,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:48:41,311 INFO L276 IsEmpty]: Start isEmpty. Operand 21242 states and 28848 transitions. [2021-11-06 20:48:41,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-11-06 20:48:41,314 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:48:41,315 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:48:41,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 20:48:41,315 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_resumeErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_resumeErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 116 more)] === [2021-11-06 20:48:41,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:48:41,316 INFO L85 PathProgramCache]: Analyzing trace with hash 813214735, now seen corresponding path program 1 times [2021-11-06 20:48:41,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:48:41,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558087925] [2021-11-06 20:48:41,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:48:41,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:48:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:48:42,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:48:42,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:48:42,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558087925] [2021-11-06 20:48:42,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558087925] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:48:42,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:48:42,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:48:42,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199981697] [2021-11-06 20:48:42,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:48:42,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:48:42,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:48:42,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:48:42,627 INFO L87 Difference]: Start difference. First operand 21242 states and 28848 transitions. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:48:45,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:48:45,842 INFO L93 Difference]: Finished difference Result 51734 states and 70507 transitions. [2021-11-06 20:48:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:48:45,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 262 [2021-11-06 20:48:45,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:48:45,975 INFO L225 Difference]: With dead ends: 51734 [2021-11-06 20:48:45,976 INFO L226 Difference]: Without dead ends: 31136 [2021-11-06 20:48:46,057 INFO L786 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 [2021-11-06 20:48:46,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31136 states. [2021-11-06 20:48:46,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31136 to 30800. [2021-11-06 20:48:46,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30800 states, 30168 states have (on average 1.368536197295147) internal successors, (41286), 30313 states have internal predecessors, (41286), 402 states have call successors, (402), 111 states have call predecessors, (402), 111 states have return successors, (402), 396 states have call predecessors, (402), 402 states have call successors, (402) [2021-11-06 20:48:46,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30800 states to 30800 states and 42090 transitions. [2021-11-06 20:48:46,812 INFO L78 Accepts]: Start accepts. Automaton has 30800 states and 42090 transitions. Word has length 262 [2021-11-06 20:48:46,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:48:46,813 INFO L470 AbstractCegarLoop]: Abstraction has 30800 states and 42090 transitions. [2021-11-06 20:48:46,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:48:46,814 INFO L276 IsEmpty]: Start isEmpty. Operand 30800 states and 42090 transitions. [2021-11-06 20:48:46,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-11-06 20:48:46,817 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:48:46,817 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:48:46,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 20:48:46,819 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_resumeErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_resumeErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 116 more)] === [2021-11-06 20:48:46,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:48:46,819 INFO L85 PathProgramCache]: Analyzing trace with hash 691131084, now seen corresponding path program 1 times [2021-11-06 20:48:46,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:48:46,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815368197] [2021-11-06 20:48:46,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:48:46,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:48:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:48:47,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:48:47,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:48:47,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815368197] [2021-11-06 20:48:47,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815368197] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:48:47,810 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:48:47,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:48:47,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112166651] [2021-11-06 20:48:47,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:48:47,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:48:47,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:48:47,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:48:47,815 INFO L87 Difference]: Start difference. First operand 30800 states and 42090 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:48:51,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:48:51,218 INFO L93 Difference]: Finished difference Result 80410 states and 110245 transitions. [2021-11-06 20:48:51,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:48:51,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2021-11-06 20:48:51,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:48:51,399 INFO L225 Difference]: With dead ends: 80410 [2021-11-06 20:48:51,400 INFO L226 Difference]: Without dead ends: 50254 [2021-11-06 20:48:51,507 INFO L786 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 [2021-11-06 20:48:51,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50254 states. [2021-11-06 20:48:52,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50254 to 49916. [2021-11-06 20:48:52,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49916 states, 48942 states have (on average 1.3737485186547342) internal successors, (67234), 49105 states have internal predecessors, (67234), 670 states have call successors, (670), 185 states have call predecessors, (670), 185 states have return successors, (670), 660 states have call predecessors, (670), 670 states have call successors, (670) [2021-11-06 20:48:52,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49916 states to 49916 states and 68574 transitions. [2021-11-06 20:48:52,630 INFO L78 Accepts]: Start accepts. Automaton has 49916 states and 68574 transitions. Word has length 263 [2021-11-06 20:48:52,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:48:52,634 INFO L470 AbstractCegarLoop]: Abstraction has 49916 states and 68574 transitions. [2021-11-06 20:48:52,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:48:52,635 INFO L276 IsEmpty]: Start isEmpty. Operand 49916 states and 68574 transitions. [2021-11-06 20:48:52,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-11-06 20:48:52,639 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:48:52,639 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:48:52,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 20:48:52,639 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_resumeErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_resumeErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 116 more)] === [2021-11-06 20:48:52,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:48:52,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1215188798, now seen corresponding path program 1 times [2021-11-06 20:48:52,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:48:52,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122653141] [2021-11-06 20:48:52,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:48:52,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:48:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:48:54,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:48:54,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:48:54,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122653141] [2021-11-06 20:48:54,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122653141] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:48:54,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:48:54,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:48:54,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104160387] [2021-11-06 20:48:54,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:48:54,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:48:54,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:48:54,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:48:54,010 INFO L87 Difference]: Start difference. First operand 49916 states and 68574 transitions. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:48:58,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:48:58,155 INFO L93 Difference]: Finished difference Result 148315 states and 205404 transitions. [2021-11-06 20:48:58,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:48:58,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 269 [2021-11-06 20:48:58,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:48:58,577 INFO L225 Difference]: With dead ends: 148315 [2021-11-06 20:48:58,578 INFO L226 Difference]: Without dead ends: 99043 [2021-11-06 20:48:58,893 INFO L786 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 [2021-11-06 20:48:58,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99043 states. [2021-11-06 20:49:00,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99043 to 98412. [2021-11-06 20:49:01,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98412 states, 96598 states have (on average 1.3766744653098408) internal successors, (132984), 96801 states have internal predecessors, (132984), 1325 states have call successors, (1325), 365 states have call predecessors, (1325), 370 states have return successors, (2620), 1315 states have call predecessors, (2620), 1325 states have call successors, (2620) [2021-11-06 20:49:01,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98412 states to 98412 states and 136929 transitions. [2021-11-06 20:49:01,563 INFO L78 Accepts]: Start accepts. Automaton has 98412 states and 136929 transitions. Word has length 269 [2021-11-06 20:49:01,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:49:01,564 INFO L470 AbstractCegarLoop]: Abstraction has 98412 states and 136929 transitions. [2021-11-06 20:49:01,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:49:01,564 INFO L276 IsEmpty]: Start isEmpty. Operand 98412 states and 136929 transitions. [2021-11-06 20:49:01,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-11-06 20:49:01,568 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:49:01,569 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:49:01,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 20:49:01,569 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr87ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_resumeErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_resumeErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 116 more)] === [2021-11-06 20:49:01,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:49:01,570 INFO L85 PathProgramCache]: Analyzing trace with hash 334064358, now seen corresponding path program 1 times [2021-11-06 20:49:01,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:49:01,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873842745] [2021-11-06 20:49:01,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:49:01,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:49:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:49:02,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:49:02,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:49:02,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873842745] [2021-11-06 20:49:02,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873842745] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:49:02,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:49:02,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:49:02,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416546380] [2021-11-06 20:49:03,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:49:03,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:49:03,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:49:03,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:49:03,001 INFO L87 Difference]: Start difference. First operand 98412 states and 136929 transitions. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:49:09,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:49:09,048 INFO L93 Difference]: Finished difference Result 290326 states and 404493 transitions. [2021-11-06 20:49:09,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:49:09,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 267 [2021-11-06 20:49:09,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:49:09,748 INFO L225 Difference]: With dead ends: 290326 [2021-11-06 20:49:09,748 INFO L226 Difference]: Without dead ends: 192558 [2021-11-06 20:49:10,042 INFO L786 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 [2021-11-06 20:49:10,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192558 states. [2021-11-06 20:49:14,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192558 to 192184. [2021-11-06 20:49:14,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192184 states, 188745 states have (on average 1.3789981191554743) internal successors, (260279), 189033 states have internal predecessors, (260279), 2580 states have call successors, (2580), 730 states have call predecessors, (2580), 740 states have return successors, (5100), 2560 states have call predecessors, (5100), 2580 states have call successors, (5100) [2021-11-06 20:49:15,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192184 states to 192184 states and 267959 transitions. [2021-11-06 20:49:15,202 INFO L78 Accepts]: Start accepts. Automaton has 192184 states and 267959 transitions. Word has length 267 [2021-11-06 20:49:15,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:49:15,202 INFO L470 AbstractCegarLoop]: Abstraction has 192184 states and 267959 transitions. [2021-11-06 20:49:15,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:49:15,203 INFO L276 IsEmpty]: Start isEmpty. Operand 192184 states and 267959 transitions. [2021-11-06 20:49:15,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-11-06 20:49:15,208 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:49:15,208 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:49:15,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 20:49:15,208 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr67ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_resumeErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_resumeErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 116 more)] === [2021-11-06 20:49:15,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:49:15,209 INFO L85 PathProgramCache]: Analyzing trace with hash 783249628, now seen corresponding path program 1 times [2021-11-06 20:49:15,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:49:15,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224650943] [2021-11-06 20:49:15,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:49:15,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:49:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:49:16,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:49:16,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:49:16,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224650943] [2021-11-06 20:49:16,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224650943] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:49:16,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:49:16,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:49:16,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062782186] [2021-11-06 20:49:16,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:49:16,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:49:16,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:49:16,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:49:16,478 INFO L87 Difference]: Start difference. First operand 192184 states and 267959 transitions. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)