./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 5b36d44f 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-wip.dd.seqcomp-5b36d44 [2021-11-07 19:18:18,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 19:18:18,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 19:18:18,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 19:18:18,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 19:18:18,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 19:18:18,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 19:18:18,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 19:18:18,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 19:18:18,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 19:18:18,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 19:18:18,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 19:18:18,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 19:18:18,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 19:18:18,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 19:18:18,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 19:18:18,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 19:18:18,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 19:18:18,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 19:18:18,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 19:18:18,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 19:18:18,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 19:18:18,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 19:18:18,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 19:18:18,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 19:18:18,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 19:18:18,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 19:18:18,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 19:18:18,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 19:18:18,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 19:18:18,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 19:18:18,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 19:18:18,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 19:18:18,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 19:18:18,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 19:18:18,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 19:18:18,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 19:18:18,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 19:18:18,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 19:18:18,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 19:18:18,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 19:18:18,502 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 19:18:18,529 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 19:18:18,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 19:18:18,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 19:18:18,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 19:18:18,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 19:18:18,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 19:18:18,532 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 19:18:18,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 19:18:18,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 19:18:18,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 19:18:18,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 19:18:18,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 19:18:18,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 19:18:18,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 19:18:18,534 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 19:18:18,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 19:18:18,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 19:18:18,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 19:18:18,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 19:18:18,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 19:18:18,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 19:18:18,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 19:18:18,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 19:18:18,535 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 19:18:18,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 19:18:18,535 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 19:18:18,536 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 19:18:18,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 19:18:18,536 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 19:18:18,536 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc77dba7d0a42d28a45b5d35d96b429d0886353a9713255eb9fc5a14ecd01454 [2021-11-07 19:18:18,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 19:18:18,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 19:18:18,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 19:18:18,745 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 19:18:18,746 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 19:18:18,747 INFO L432 ainManager$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 [2021-11-07 19:18:18,796 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0131603f/0a59cce7a68d4b27a13f1b5600f8285c/FLAGa3fb540c4 [2021-11-07 19:18:19,595 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 19:18:19,596 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 [2021-11-07 19:18:19,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0131603f/0a59cce7a68d4b27a13f1b5600f8285c/FLAGa3fb540c4 [2021-11-07 19:18:19,773 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0131603f/0a59cce7a68d4b27a13f1b5600f8285c [2021-11-07 19:18:19,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 19:18:19,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 19:18:19,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 19:18:19,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 19:18:19,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 19:18:19,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:18:19" (1/1) ... [2021-11-07 19:18:19,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7349de86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:19, skipping insertion in model container [2021-11-07 19:18:19,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:18:19" (1/1) ... [2021-11-07 19:18:19,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 19:18:19,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 19:18:29,641 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] [2021-11-07 19:18:29,643 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] [2021-11-07 19:18:29,643 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] [2021-11-07 19:18:29,644 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] [2021-11-07 19:18:29,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 19:18:29,749 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 19:18:30,261 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] [2021-11-07 19:18:30,262 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] [2021-11-07 19:18:30,262 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] [2021-11-07 19:18:30,263 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] [2021-11-07 19:18:30,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 19:18:30,747 INFO L208 MainTranslator]: Completed translation [2021-11-07 19:18:30,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:30 WrapperNode [2021-11-07 19:18:30,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 19:18:30,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 19:18:30,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 19:18:30,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 19:18:30,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:30" (1/1) ... [2021-11-07 19:18:30,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:30" (1/1) ... [2021-11-07 19:18:32,417 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 19:18:32,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 19:18:32,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 19:18:32,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 19:18:32,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:30" (1/1) ... [2021-11-07 19:18:32,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:30" (1/1) ... [2021-11-07 19:18:32,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:30" (1/1) ... [2021-11-07 19:18:32,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:30" (1/1) ... [2021-11-07 19:18:33,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:30" (1/1) ... [2021-11-07 19:18:33,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:30" (1/1) ... [2021-11-07 19:18:34,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:30" (1/1) ... [2021-11-07 19:18:34,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 19:18:34,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 19:18:34,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 19:18:34,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 19:18:34,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:30" (1/1) ... [2021-11-07 19:18:34,325 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 19:18:34,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 19:18:34,346 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) [2021-11-07 19:18:34,363 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 [2021-11-07 19:18:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2021-11-07 19:18:34,376 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2021-11-07 19:18:34,376 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2021-11-07 19:18:34,376 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2021-11-07 19:18:34,376 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2021-11-07 19:18:34,376 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2021-11-07 19:18:34,376 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2021-11-07 19:18:34,376 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2021-11-07 19:18:34,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 19:18:34,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 19:18:34,377 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2021-11-07 19:18:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2021-11-07 19:18:34,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 19:18:34,377 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 19:18:34,377 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2021-11-07 19:18:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2021-11-07 19:18:34,378 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2021-11-07 19:18:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2021-11-07 19:18:34,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 19:18:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 19:18:34,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 19:18:34,378 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-07 19:18:34,378 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ethtool_stats [2021-11-07 19:18:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ethtool_stats [2021-11-07 19:18:34,378 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2021-11-07 19:18:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2021-11-07 19:18:34,379 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2021-11-07 19:18:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2021-11-07 19:18:34,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 19:18:34,379 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 19:18:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 19:18:34,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 19:18:34,379 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2021-11-07 19:18:34,380 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2021-11-07 19:18:34,380 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2021-11-07 19:18:34,380 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2021-11-07 19:18:34,380 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2021-11-07 19:18:34,380 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2021-11-07 19:18:34,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 19:18:34,381 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2021-11-07 19:18:34,381 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2021-11-07 19:18:34,381 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2021-11-07 19:18:34,381 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2021-11-07 19:18:34,381 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2021-11-07 19:18:34,381 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2021-11-07 19:18:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2021-11-07 19:18:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2021-11-07 19:18:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2021-11-07 19:18:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2021-11-07 19:18:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 19:18:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2021-11-07 19:18:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2021-11-07 19:18:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 19:18:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 19:18:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2021-11-07 19:18:34,384 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2021-11-07 19:18:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2021-11-07 19:18:34,384 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2021-11-07 19:18:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2021-11-07 19:18:34,384 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2021-11-07 19:18:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2021-11-07 19:18:34,385 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2021-11-07 19:18:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2021-11-07 19:18:34,385 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2021-11-07 19:18:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2021-11-07 19:18:34,385 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2021-11-07 19:18:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2021-11-07 19:18:34,386 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2021-11-07 19:18:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 19:18:34,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 19:18:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2021-11-07 19:18:34,386 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2021-11-07 19:18:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 19:18:34,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 19:18:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 19:18:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 19:18:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2021-11-07 19:18:34,387 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2021-11-07 19:18:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2021-11-07 19:18:34,387 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2021-11-07 19:18:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2021-11-07 19:18:34,387 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2021-11-07 19:18:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2021-11-07 19:18:34,387 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2021-11-07 19:18:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 19:18:34,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 19:18:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 19:18:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 19:18:34,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 19:18:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2021-11-07 19:18:34,389 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2021-11-07 19:20:12,841 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break: ldv_switch_6_#res := 0; [2021-11-07 19:20:12,846 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 19:20:12,847 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-07 19:20:12,847 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-07 19:20:12,847 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 19:20:12,848 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#4: ldv_switch_6_#res := 0; [2021-11-07 19:20:12,849 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#3: ldv_switch_6_#res := 0; [2021-11-07 19:20:12,849 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#2: ldv_switch_6_#res := 0; [2021-11-07 19:20:12,849 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break#2: ldv_switch_5_#res := 0; [2021-11-07 19:20:12,849 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0; [2021-11-07 19:20:12,850 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#3: ldv_switch_4_#res := 0; [2021-11-07 19:20:12,850 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break: ldv_switch_5_#res := 0; [2021-11-07 19:20:12,850 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break#2: ldv_switch_8_#res := 0; [2021-11-07 19:20:12,850 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-07 19:20:12,850 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-07 19:20:12,863 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 19:20:12,863 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res := 0; [2021-11-07 19:20:12,864 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 19:20:12,865 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-07 19:20:12,865 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_7_switch_break: ldv_switch_7_#res := 0; [2021-11-07 19:20:12,866 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-07 19:20:12,866 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_9_switch_break: ldv_switch_9_#res := 0; [2021-11-07 19:20:12,866 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break: ldv_switch_8_#res := 0; [2021-11-07 19:20:12,867 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-07 19:20:12,868 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 19:20:13,007 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 19:20:13,008 INFO L299 CfgBuilder]: Removed 11171 assume(true) statements. [2021-11-07 19:20:13,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:20:13 BoogieIcfgContainer [2021-11-07 19:20:13,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 19:20:13,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 19:20:13,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 19:20:13,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 19:20:13,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:18:19" (1/3) ... [2021-11-07 19:20:13,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178f4baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:20:13, skipping insertion in model container [2021-11-07 19:20:13,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:30" (2/3) ... [2021-11-07 19:20:13,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178f4baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:20:13, skipping insertion in model container [2021-11-07 19:20:13,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:20:13" (3/3) ... [2021-11-07 19:20:13,049 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-07 19:20:13,053 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 19:20:13,053 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 119 error locations. [2021-11-07 19:20:13,115 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 19:20:13,121 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 [2021-11-07 19:20:13,121 INFO L340 AbstractCegarLoop]: Starting to check reachability of 119 error locations. [2021-11-07 19:20:13,236 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) [2021-11-07 19:20:13,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-07 19:20:13,258 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:20:13,259 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:20:13,259 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)] === [2021-11-07 19:20:13,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:20:13,263 INFO L85 PathProgramCache]: Analyzing trace with hash 27599455, now seen corresponding path program 1 times [2021-11-07 19:20:13,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:20:13,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432326844] [2021-11-07 19:20:13,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:20:13,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:20:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:20:15,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:20:15,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:20:15,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432326844] [2021-11-07 19:20:15,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432326844] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:20:15,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:20:15,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:20:15,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57142422] [2021-11-07 19:20:15,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:20:15,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:20:15,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:20:15,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:20:15,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:20:15,045 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) [2021-11-07 19:20:17,528 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:20:18,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:20:18,337 INFO L93 Difference]: Finished difference Result 32939 states and 45932 transitions. [2021-11-07 19:20:18,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:20:18,339 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 [2021-11-07 19:20:18,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:20:18,429 INFO L225 Difference]: With dead ends: 32939 [2021-11-07 19:20:18,430 INFO L226 Difference]: Without dead ends: 21378 [2021-11-07 19:20:18,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.15ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:20:18,519 INFO L933 BasicCegarLoop]: 16002 mSDtfsCounter, 14517 mSDsluCounter, 15807 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2509.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14517 SdHoareTripleChecker+Valid, 31809 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 68.73ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2629.59ms IncrementalHoareTripleChecker+Time [2021-11-07 19:20:18,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14517 Valid, 31809 Invalid, 84 Unknown, 0 Unchecked, 68.73ms Time], IncrementalHoareTripleChecker [17 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 2629.59ms Time] [2021-11-07 19:20:18,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21378 states. [2021-11-07 19:20:19,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21378 to 21242. [2021-11-07 19:20:19,159 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) [2021-11-07 19:20:19,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21242 states to 21242 states and 28848 transitions. [2021-11-07 19:20:19,245 INFO L78 Accepts]: Start accepts. Automaton has 21242 states and 28848 transitions. Word has length 254 [2021-11-07 19:20:19,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:20:19,246 INFO L470 AbstractCegarLoop]: Abstraction has 21242 states and 28848 transitions. [2021-11-07 19:20:19,247 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) [2021-11-07 19:20:19,247 INFO L276 IsEmpty]: Start isEmpty. Operand 21242 states and 28848 transitions. [2021-11-07 19:20:19,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-11-07 19:20:19,251 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:20:19,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:20:19,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 19:20:19,252 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)] === [2021-11-07 19:20:19,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:20:19,253 INFO L85 PathProgramCache]: Analyzing trace with hash 813214735, now seen corresponding path program 1 times [2021-11-07 19:20:19,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:20:19,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941718970] [2021-11-07 19:20:19,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:20:19,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:20:19,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:20:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:20:20,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:20:20,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941718970] [2021-11-07 19:20:20,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941718970] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:20:20,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:20:20,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:20:20,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738169618] [2021-11-07 19:20:20,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:20:20,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:20:20,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:20:20,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:20:20,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:20:20,548 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) [2021-11-07 19:20:22,849 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:20:23,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:20:23,690 INFO L93 Difference]: Finished difference Result 51734 states and 70507 transitions. [2021-11-07 19:20:23,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:20:23,691 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 [2021-11-07 19:20:23,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:20:23,791 INFO L225 Difference]: With dead ends: 51734 [2021-11-07 19:20:23,792 INFO L226 Difference]: Without dead ends: 31136 [2021-11-07 19:20:23,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.74ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:20:23,850 INFO L933 BasicCegarLoop]: 15097 mSDtfsCounter, 13869 mSDsluCounter, 14910 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2349.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13869 SdHoareTripleChecker+Valid, 30007 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.64ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2464.39ms IncrementalHoareTripleChecker+Time [2021-11-07 19:20:23,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13869 Valid, 30007 Invalid, 84 Unknown, 0 Unchecked, 43.64ms Time], IncrementalHoareTripleChecker [13 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 2464.39ms Time] [2021-11-07 19:20:23,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31136 states. [2021-11-07 19:20:24,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31136 to 30800. [2021-11-07 19:20:24,476 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) [2021-11-07 19:20:24,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30800 states to 30800 states and 42090 transitions. [2021-11-07 19:20:24,556 INFO L78 Accepts]: Start accepts. Automaton has 30800 states and 42090 transitions. Word has length 262 [2021-11-07 19:20:24,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:20:24,558 INFO L470 AbstractCegarLoop]: Abstraction has 30800 states and 42090 transitions. [2021-11-07 19:20:24,558 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) [2021-11-07 19:20:24,559 INFO L276 IsEmpty]: Start isEmpty. Operand 30800 states and 42090 transitions. [2021-11-07 19:20:24,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-11-07 19:20:24,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:20:24,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:20:24,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 19:20:24,563 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)] === [2021-11-07 19:20:24,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:20:24,564 INFO L85 PathProgramCache]: Analyzing trace with hash 691131084, now seen corresponding path program 1 times [2021-11-07 19:20:24,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:20:24,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202311320] [2021-11-07 19:20:24,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:20:24,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:20:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:20:25,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:20:25,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:20:25,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202311320] [2021-11-07 19:20:25,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202311320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:20:25,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:20:25,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:20:25,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039644172] [2021-11-07 19:20:25,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:20:25,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:20:25,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:20:25,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:20:25,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:20:25,604 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) [2021-11-07 19:20:28,024 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:20:29,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:20:29,004 INFO L93 Difference]: Finished difference Result 80410 states and 110245 transitions. [2021-11-07 19:20:29,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:20:29,006 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 [2021-11-07 19:20:29,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:20:29,296 INFO L225 Difference]: With dead ends: 80410 [2021-11-07 19:20:29,296 INFO L226 Difference]: Without dead ends: 50254 [2021-11-07 19:20:29,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.75ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:20:29,376 INFO L933 BasicCegarLoop]: 15467 mSDtfsCounter, 13869 mSDsluCounter, 14911 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2474.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13869 SdHoareTripleChecker+Valid, 30378 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.50ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2606.82ms IncrementalHoareTripleChecker+Time [2021-11-07 19:20:29,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13869 Valid, 30378 Invalid, 84 Unknown, 0 Unchecked, 34.50ms Time], IncrementalHoareTripleChecker [13 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 2606.82ms Time] [2021-11-07 19:20:29,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50254 states. [2021-11-07 19:20:30,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50254 to 49916. [2021-11-07 19:20:30,455 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) [2021-11-07 19:20:30,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49916 states to 49916 states and 68574 transitions. [2021-11-07 19:20:30,609 INFO L78 Accepts]: Start accepts. Automaton has 49916 states and 68574 transitions. Word has length 263 [2021-11-07 19:20:30,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:20:30,609 INFO L470 AbstractCegarLoop]: Abstraction has 49916 states and 68574 transitions. [2021-11-07 19:20:30,609 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) [2021-11-07 19:20:30,610 INFO L276 IsEmpty]: Start isEmpty. Operand 49916 states and 68574 transitions. [2021-11-07 19:20:30,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-11-07 19:20:30,613 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:20:30,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:20:30,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 19:20:30,614 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)] === [2021-11-07 19:20:30,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:20:30,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1215188798, now seen corresponding path program 1 times [2021-11-07 19:20:30,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:20:30,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791196882] [2021-11-07 19:20:30,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:20:30,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:20:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:20:31,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:20:31,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:20:31,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791196882] [2021-11-07 19:20:31,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791196882] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:20:31,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:20:31,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:20:31,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426215848] [2021-11-07 19:20:31,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:20:31,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:20:31,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:20:31,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:20:31,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:20:31,684 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) [2021-11-07 19:20:33,983 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:20:35,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:20:35,967 INFO L93 Difference]: Finished difference Result 148315 states and 205404 transitions. [2021-11-07 19:20:35,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:20:35,968 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 [2021-11-07 19:20:35,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:20:36,423 INFO L225 Difference]: With dead ends: 148315 [2021-11-07 19:20:36,424 INFO L226 Difference]: Without dead ends: 99043 [2021-11-07 19:20:36,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.27ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:20:36,555 INFO L933 BasicCegarLoop]: 15387 mSDtfsCounter, 14343 mSDsluCounter, 15060 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2341.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14343 SdHoareTripleChecker+Valid, 30447 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.38ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2464.66ms IncrementalHoareTripleChecker+Time [2021-11-07 19:20:36,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14343 Valid, 30447 Invalid, 47 Unknown, 0 Unchecked, 31.38ms Time], IncrementalHoareTripleChecker [14 Valid, 32 Invalid, 1 Unknown, 0 Unchecked, 2464.66ms Time] [2021-11-07 19:20:36,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99043 states. [2021-11-07 19:20:38,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99043 to 98412. [2021-11-07 19:20:39,072 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) [2021-11-07 19:20:39,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98412 states to 98412 states and 136929 transitions. [2021-11-07 19:20:39,455 INFO L78 Accepts]: Start accepts. Automaton has 98412 states and 136929 transitions. Word has length 269 [2021-11-07 19:20:39,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:20:39,455 INFO L470 AbstractCegarLoop]: Abstraction has 98412 states and 136929 transitions. [2021-11-07 19:20:39,456 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) [2021-11-07 19:20:39,456 INFO L276 IsEmpty]: Start isEmpty. Operand 98412 states and 136929 transitions. [2021-11-07 19:20:39,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-11-07 19:20:39,460 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:20:39,460 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:20:39,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 19:20:39,461 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)] === [2021-11-07 19:20:39,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:20:39,461 INFO L85 PathProgramCache]: Analyzing trace with hash 334064358, now seen corresponding path program 1 times [2021-11-07 19:20:39,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:20:39,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782365650] [2021-11-07 19:20:39,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:20:39,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:20:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:20:40,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:20:40,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:20:40,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782365650] [2021-11-07 19:20:40,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782365650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:20:40,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:20:40,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:20:40,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975379936] [2021-11-07 19:20:40,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:20:40,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:20:40,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:20:40,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:20:40,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:20:40,988 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) [2021-11-07 19:20:43,296 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []