./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-dec-tulip-de4x5.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-dec-tulip-de4x5.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 52f53de973aa03e2a9eaadeeb26ce30c3104ed671c54a416d14fc4c2bdab8bd9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 20:42:01,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 20:42:01,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 20:42:01,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 20:42:01,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 20:42:01,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 20:42:01,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 20:42:01,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 20:42:01,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 20:42:01,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 20:42:01,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 20:42:01,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 20:42:01,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 20:42:01,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 20:42:01,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 20:42:01,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 20:42:01,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 20:42:01,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 20:42:01,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 20:42:01,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 20:42:01,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 20:42:01,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 20:42:01,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 20:42:01,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 20:42:01,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 20:42:01,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 20:42:01,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 20:42:01,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 20:42:01,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 20:42:01,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 20:42:01,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 20:42:01,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 20:42:01,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 20:42:01,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 20:42:01,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 20:42:01,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 20:42:01,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 20:42:01,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 20:42:01,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 20:42:01,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 20:42:01,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 20:42:01,603 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 20:42:01,633 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 20:42:01,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 20:42:01,634 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 20:42:01,635 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 20:42:01,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 20:42:01,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 20:42:01,636 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 20:42:01,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 20:42:01,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 20:42:01,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 20:42:01,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 20:42:01,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 20:42:01,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 20:42:01,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 20:42:01,639 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 20:42:01,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 20:42:01,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 20:42:01,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 20:42:01,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 20:42:01,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 20:42:01,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 20:42:01,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 20:42:01,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 20:42:01,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 20:42:01,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 20:42:01,641 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 20:42:01,641 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 20:42:01,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 20:42:01,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 20:42:01,642 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52f53de973aa03e2a9eaadeeb26ce30c3104ed671c54a416d14fc4c2bdab8bd9 [2021-11-06 20:42:01,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 20:42:01,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 20:42:01,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 20:42:01,856 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 20:42:01,856 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 20:42:01,857 INFO L432 ainManager$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-dec-tulip-de4x5.cil.i [2021-11-06 20:42:01,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8575a6bdf/afedc7ed311b44b2886da172c9a2d090/FLAG84606503f [2021-11-06 20:42:02,719 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 20:42:02,720 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-dec-tulip-de4x5.cil.i [2021-11-06 20:42:02,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8575a6bdf/afedc7ed311b44b2886da172c9a2d090/FLAG84606503f [2021-11-06 20:42:02,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8575a6bdf/afedc7ed311b44b2886da172c9a2d090 [2021-11-06 20:42:02,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 20:42:02,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 20:42:02,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 20:42:02,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 20:42:02,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 20:42:02,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:42:02" (1/1) ... [2021-11-06 20:42:02,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41f023c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:42:02, skipping insertion in model container [2021-11-06 20:42:02,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:42:02" (1/1) ... [2021-11-06 20:42:02,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 20:42:03,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 20:42:06,266 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-dec-tulip-de4x5.cil.i[479863,479876] [2021-11-06 20:42:06,269 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-dec-tulip-de4x5.cil.i[480032,480045] [2021-11-06 20:42:06,269 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-dec-tulip-de4x5.cil.i[480199,480212] [2021-11-06 20:42:06,269 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-dec-tulip-de4x5.cil.i[480367,480380] [2021-11-06 20:42:06,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 20:42:06,324 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 20:42:06,762 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-dec-tulip-de4x5.cil.i[479863,479876] [2021-11-06 20:42:06,764 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-dec-tulip-de4x5.cil.i[480032,480045] [2021-11-06 20:42:06,765 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-dec-tulip-de4x5.cil.i[480199,480212] [2021-11-06 20:42:06,765 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-dec-tulip-de4x5.cil.i[480367,480380] [2021-11-06 20:42:06,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 20:42:06,996 INFO L208 MainTranslator]: Completed translation [2021-11-06 20:42:06,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:42:06 WrapperNode [2021-11-06 20:42:06,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 20:42:06,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 20:42:06,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 20:42:06,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 20:42:07,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:42:06" (1/1) ... [2021-11-06 20:42:07,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:42:06" (1/1) ... [2021-11-06 20:42:09,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 20:42:09,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 20:42:09,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 20:42:09,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 20:42:09,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:42:06" (1/1) ... [2021-11-06 20:42:09,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:42:06" (1/1) ... [2021-11-06 20:42:10,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:42:06" (1/1) ... [2021-11-06 20:42:10,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:42:06" (1/1) ... [2021-11-06 20:42:11,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:42:06" (1/1) ... [2021-11-06 20:42:12,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:42:06" (1/1) ... [2021-11-06 20:42:12,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:42:06" (1/1) ... [2021-11-06 20:42:12,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 20:42:12,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 20:42:12,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 20:42:12,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 20:42:12,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:42:06" (1/1) ... [2021-11-06 20:42:12,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 20:42:12,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 20:42:12,888 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 20:42:12,898 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 20:42:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2021-11-06 20:42:12,925 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2021-11-06 20:42:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2021-11-06 20:42:12,925 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2021-11-06 20:42:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2021-11-06 20:42:12,926 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2021-11-06 20:42:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2021-11-06 20:42:12,926 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2021-11-06 20:42:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-06 20:42:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 20:42:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 20:42:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 20:42:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 20:42:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2021-11-06 20:42:12,927 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2021-11-06 20:42:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 20:42:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 20:42:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 20:42:12,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 20:42:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2021-11-06 20:42:12,928 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2021-11-06 20:42:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 20:42:12,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 20:42:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2021-11-06 20:42:12,929 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2021-11-06 20:42:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 20:42:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 20:42:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2021-11-06 20:42:12,929 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2021-11-06 20:42:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2021-11-06 20:42:12,930 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2021-11-06 20:42:12,930 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2021-11-06 20:42:12,930 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2021-11-06 20:42:12,930 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2021-11-06 20:42:12,930 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2021-11-06 20:42:12,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 20:42:12,931 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2021-11-06 20:42:12,931 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2021-11-06 20:42:12,931 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2021-11-06 20:42:12,931 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2021-11-06 20:42:12,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 20:42:12,932 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2021-11-06 20:42:12,932 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2021-11-06 20:42:12,932 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-06 20:42:12,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-06 20:42:12,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 20:42:12,933 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2021-11-06 20:42:12,933 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2021-11-06 20:42:12,933 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2021-11-06 20:42:12,933 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2021-11-06 20:42:12,933 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2021-11-06 20:42:12,934 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2021-11-06 20:42:12,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 20:42:12,934 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2021-11-06 20:42:12,935 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2021-11-06 20:42:12,935 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2021-11-06 20:42:12,936 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2021-11-06 20:42:12,936 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2021-11-06 20:42:12,936 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2021-11-06 20:42:12,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 20:42:12,936 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-06 20:42:57,571 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 20:42:57,571 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-06 20:42:57,571 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 20:42:57,572 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-06 20:42:57,572 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-06 20:42:57,572 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2021-11-06 20:42:57,572 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2021-11-06 20:42:57,572 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 20:42:57,572 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res := 0; [2021-11-06 20:42:57,573 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res := 0; [2021-11-06 20:42:57,574 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 20:42:57,574 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 20:42:57,871 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 20:42:57,871 INFO L299 CfgBuilder]: Removed 21838 assume(true) statements. [2021-11-06 20:42:57,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:42:57 BoogieIcfgContainer [2021-11-06 20:42:57,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 20:42:57,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 20:42:57,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 20:42:57,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 20:42:57,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:42:02" (1/3) ... [2021-11-06 20:42:57,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6172f092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:42:57, skipping insertion in model container [2021-11-06 20:42:57,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:42:06" (2/3) ... [2021-11-06 20:42:57,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6172f092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:42:57, skipping insertion in model container [2021-11-06 20:42:57,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:42:57" (3/3) ... [2021-11-06 20:42:57,894 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-06 20:42:57,898 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 20:42:57,899 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 91 error locations. [2021-11-06 20:42:57,991 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 20:42:57,999 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 20:42:58,000 INFO L340 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2021-11-06 20:42:58,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 17891 states, 17691 states have (on average 1.2968741167825448) internal successors, (22943), 17782 states have internal predecessors, (22943), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-06 20:42:58,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-06 20:42:58,198 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:42:58,199 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] [2021-11-06 20:42:58,199 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 88 more)] === [2021-11-06 20:42:58,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:42:58,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1649355456, now seen corresponding path program 1 times [2021-11-06 20:42:58,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:42:58,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20828991] [2021-11-06 20:42:58,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:42:58,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:42:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:42:58,876 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 20:42:58,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:42:58,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20828991] [2021-11-06 20:42:58,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20828991] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:42:58,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:42:58,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:42:58,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817312113] [2021-11-06 20:42:58,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:42:58,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:42:58,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:42:58,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:42:58,943 INFO L87 Difference]: Start difference. First operand has 17891 states, 17691 states have (on average 1.2968741167825448) internal successors, (22943), 17782 states have internal predecessors, (22943), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 20:43:02,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:43:02,894 INFO L93 Difference]: Finished difference Result 52311 states and 67734 transitions. [2021-11-06 20:43:02,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:43:02,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2021-11-06 20:43:02,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:43:03,119 INFO L225 Difference]: With dead ends: 52311 [2021-11-06 20:43:03,119 INFO L226 Difference]: Without dead ends: 34261 [2021-11-06 20:43:03,364 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 20:43:03,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34261 states. [2021-11-06 20:43:04,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34261 to 34131. [2021-11-06 20:43:04,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34131 states, 33822 states have (on average 1.2727218969901248) internal successors, (43046), 33914 states have internal predecessors, (43046), 174 states have call successors, (174), 44 states have call predecessors, (174), 44 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2021-11-06 20:43:04,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34131 states to 34131 states and 43394 transitions. [2021-11-06 20:43:04,896 INFO L78 Accepts]: Start accepts. Automaton has 34131 states and 43394 transitions. Word has length 60 [2021-11-06 20:43:04,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:43:04,898 INFO L470 AbstractCegarLoop]: Abstraction has 34131 states and 43394 transitions. [2021-11-06 20:43:04,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 20:43:04,899 INFO L276 IsEmpty]: Start isEmpty. Operand 34131 states and 43394 transitions. [2021-11-06 20:43:04,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-06 20:43:04,906 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:43:04,907 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] [2021-11-06 20:43:04,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 20:43:04,907 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 88 more)] === [2021-11-06 20:43:04,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:43:04,910 INFO L85 PathProgramCache]: Analyzing trace with hash 831250567, now seen corresponding path program 1 times [2021-11-06 20:43:04,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:43:04,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763835732] [2021-11-06 20:43:04,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:43:04,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:43:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:43:05,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:43:05,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:43:05,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763835732] [2021-11-06 20:43:05,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763835732] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:43:05,236 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:43:05,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:43:05,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892242321] [2021-11-06 20:43:05,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:43:05,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:43:05,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:43:05,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:43:05,239 INFO L87 Difference]: Start difference. First operand 34131 states and 43394 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 20:43:09,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:43:09,857 INFO L93 Difference]: Finished difference Result 100801 states and 128463 transitions. [2021-11-06 20:43:09,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:43:09,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 61 [2021-11-06 20:43:09,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:43:10,450 INFO L225 Difference]: With dead ends: 100801 [2021-11-06 20:43:10,451 INFO L226 Difference]: Without dead ends: 66794 [2021-11-06 20:43:10,638 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 20:43:10,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66794 states. [2021-11-06 20:43:12,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66794 to 66360. [2021-11-06 20:43:12,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66360 states, 65833 states have (on average 1.2727355581547248) internal successors, (83788), 65927 states have internal predecessors, (83788), 348 states have call successors, (348), 88 states have call predecessors, (348), 88 states have return successors, (664), 348 states have call predecessors, (664), 348 states have call successors, (664) [2021-11-06 20:43:13,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66360 states to 66360 states and 84800 transitions. [2021-11-06 20:43:13,137 INFO L78 Accepts]: Start accepts. Automaton has 66360 states and 84800 transitions. Word has length 61 [2021-11-06 20:43:13,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:43:13,138 INFO L470 AbstractCegarLoop]: Abstraction has 66360 states and 84800 transitions. [2021-11-06 20:43:13,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 20:43:13,138 INFO L276 IsEmpty]: Start isEmpty. Operand 66360 states and 84800 transitions. [2021-11-06 20:43:13,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-06 20:43:13,141 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:43:13,141 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] [2021-11-06 20:43:13,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 20:43:13,142 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 88 more)] === [2021-11-06 20:43:13,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:43:13,142 INFO L85 PathProgramCache]: Analyzing trace with hash -2012454023, now seen corresponding path program 1 times [2021-11-06 20:43:13,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:43:13,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979899245] [2021-11-06 20:43:13,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:43:13,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:43:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:43:13,394 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 20:43:13,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:43:13,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979899245] [2021-11-06 20:43:13,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979899245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:43:13,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:43:13,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:43:13,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467345051] [2021-11-06 20:43:13,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:43:13,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:43:13,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:43:13,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:43:13,398 INFO L87 Difference]: Start difference. First operand 66360 states and 84800 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 20:43:18,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:43:18,708 INFO L93 Difference]: Finished difference Result 196776 states and 251418 transitions. [2021-11-06 20:43:18,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:43:18,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2021-11-06 20:43:18,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:43:19,503 INFO L225 Difference]: With dead ends: 196776 [2021-11-06 20:43:19,504 INFO L226 Difference]: Without dead ends: 130540 [2021-11-06 20:43:19,855 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 20:43:19,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130540 states. [2021-11-06 20:43:23,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130540 to 130304. [2021-11-06 20:43:23,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130304 states, 129341 states have (on average 1.2721101584184442) internal successors, (164536), 129439 states have internal predecessors, (164536), 696 states have call successors, (696), 176 states have call predecessors, (696), 176 states have return successors, (1328), 696 states have call predecessors, (1328), 696 states have call successors, (1328) [2021-11-06 20:43:24,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130304 states to 130304 states and 166560 transitions. [2021-11-06 20:43:24,549 INFO L78 Accepts]: Start accepts. Automaton has 130304 states and 166560 transitions. Word has length 72 [2021-11-06 20:43:24,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:43:24,551 INFO L470 AbstractCegarLoop]: Abstraction has 130304 states and 166560 transitions. [2021-11-06 20:43:24,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 20:43:24,551 INFO L276 IsEmpty]: Start isEmpty. Operand 130304 states and 166560 transitions. [2021-11-06 20:43:24,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-06 20:43:24,561 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:43:24,562 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] [2021-11-06 20:43:24,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 20:43:24,562 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 88 more)] === [2021-11-06 20:43:24,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:43:24,563 INFO L85 PathProgramCache]: Analyzing trace with hash 284913516, now seen corresponding path program 1 times [2021-11-06 20:43:24,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:43:24,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511786387] [2021-11-06 20:43:24,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:43:24,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:43:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:43:24,822 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 20:43:24,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:43:24,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511786387] [2021-11-06 20:43:24,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511786387] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:43:24,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:43:24,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:43:24,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468949466] [2021-11-06 20:43:24,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:43:24,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:43:24,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:43:24,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:43:24,826 INFO L87 Difference]: Start difference. First operand 130304 states and 166560 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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)