./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-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 45acb2c796116b4df93c0e090b1e242e2e986b4d7b1240180279cd2f8660db26 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 09:03:09,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 09:03:09,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 09:03:09,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 09:03:09,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 09:03:09,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 09:03:09,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 09:03:09,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 09:03:09,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 09:03:09,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 09:03:09,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 09:03:09,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 09:03:09,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 09:03:09,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 09:03:09,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 09:03:09,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 09:03:09,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 09:03:09,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 09:03:09,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 09:03:09,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 09:03:09,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 09:03:09,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 09:03:09,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 09:03:09,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 09:03:09,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 09:03:09,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 09:03:09,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 09:03:09,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 09:03:09,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 09:03:09,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 09:03:09,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 09:03:09,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 09:03:09,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 09:03:09,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 09:03:09,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 09:03:09,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 09:03:09,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 09:03:09,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 09:03:09,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 09:03:09,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 09:03:09,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 09:03:09,219 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 09:03:09,232 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 09:03:09,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 09:03:09,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 09:03:09,233 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 09:03:09,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 09:03:09,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 09:03:09,234 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 09:03:09,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 09:03:09,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 09:03:09,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 09:03:09,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 09:03:09,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 09:03:09,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 09:03:09,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 09:03:09,235 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 09:03:09,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 09:03:09,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 09:03:09,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 09:03:09,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 09:03:09,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 09:03:09,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 09:03:09,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 09:03:09,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 09:03:09,236 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 09:03:09,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 09:03:09,237 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 09:03:09,237 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 09:03:09,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 09:03:09,237 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 09:03:09,237 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45acb2c796116b4df93c0e090b1e242e2e986b4d7b1240180279cd2f8660db26 [2021-11-04 09:03:09,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 09:03:09,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 09:03:09,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 09:03:09,432 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 09:03:09,433 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 09:03:09,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-04 09:03:09,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a87d1deb3/1c8642462fd34107bb1a5e9c57780010/FLAG30aee123f [2021-11-04 09:03:10,176 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 09:03:10,177 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-04 09:03:10,239 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a87d1deb3/1c8642462fd34107bb1a5e9c57780010/FLAG30aee123f [2021-11-04 09:03:10,527 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a87d1deb3/1c8642462fd34107bb1a5e9c57780010 [2021-11-04 09:03:10,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 09:03:10,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 09:03:10,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 09:03:10,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 09:03:10,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 09:03:10,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 09:03:10" (1/1) ... [2021-11-04 09:03:10,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@948d37e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:03:10, skipping insertion in model container [2021-11-04 09:03:10,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 09:03:10" (1/1) ... [2021-11-04 09:03:10,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 09:03:10,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 09:03:13,032 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480731,480744] [2021-11-04 09:03:13,034 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480876,480889] [2021-11-04 09:03:13,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 09:03:13,104 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 09:03:13,427 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480731,480744] [2021-11-04 09:03:13,428 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480876,480889] [2021-11-04 09:03:13,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 09:03:13,601 INFO L208 MainTranslator]: Completed translation [2021-11-04 09:03:13,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:03:13 WrapperNode [2021-11-04 09:03:13,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 09:03:13,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 09:03:13,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 09:03:13,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 09:03:13,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:03:13" (1/1) ... [2021-11-04 09:03:13,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:03:13" (1/1) ... [2021-11-04 09:03:15,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 09:03:15,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 09:03:15,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 09:03:15,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 09:03:15,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:03:13" (1/1) ... [2021-11-04 09:03:15,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:03:13" (1/1) ... [2021-11-04 09:03:15,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:03:13" (1/1) ... [2021-11-04 09:03:15,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:03:13" (1/1) ... [2021-11-04 09:03:16,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:03:13" (1/1) ... [2021-11-04 09:03:17,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:03:13" (1/1) ... [2021-11-04 09:03:17,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:03:13" (1/1) ... [2021-11-04 09:03:17,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 09:03:17,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 09:03:17,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 09:03:17,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 09:03:17,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:03:13" (1/1) ... [2021-11-04 09:03:17,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 09:03:17,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 09:03:17,779 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) [2021-11-04 09:03:17,799 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 [2021-11-04 09:03:17,806 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2021-11-04 09:03:17,807 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2021-11-04 09:03:17,807 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2021-11-04 09:03:17,807 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2021-11-04 09:03:17,807 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2021-11-04 09:03:17,807 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2021-11-04 09:03:17,807 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2021-11-04 09:03:17,807 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2021-11-04 09:03:17,807 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-04 09:03:17,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 09:03:17,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 09:03:17,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 09:03:17,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 09:03:17,808 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2021-11-04 09:03:17,808 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2021-11-04 09:03:17,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 09:03:17,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 09:03:17,809 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-04 09:03:17,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-04 09:03:17,809 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2021-11-04 09:03:17,809 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2021-11-04 09:03:17,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 09:03:17,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 09:03:17,809 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2021-11-04 09:03:17,809 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2021-11-04 09:03:17,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 09:03:17,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 09:03:17,810 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2021-11-04 09:03:17,810 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2021-11-04 09:03:17,810 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2021-11-04 09:03:17,810 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2021-11-04 09:03:17,810 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2021-11-04 09:03:17,810 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2021-11-04 09:03:17,810 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2021-11-04 09:03:17,810 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2021-11-04 09:03:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 09:03:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2021-11-04 09:03:17,811 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2021-11-04 09:03:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2021-11-04 09:03:17,811 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2021-11-04 09:03:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 09:03:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2021-11-04 09:03:17,811 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2021-11-04 09:03:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-04 09:03:17,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-04 09:03:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 09:03:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2021-11-04 09:03:17,812 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2021-11-04 09:03:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2021-11-04 09:03:17,812 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2021-11-04 09:03:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2021-11-04 09:03:17,812 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2021-11-04 09:03:17,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 09:03:17,813 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2021-11-04 09:03:17,813 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2021-11-04 09:03:17,813 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2021-11-04 09:03:17,813 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2021-11-04 09:03:17,813 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2021-11-04 09:03:17,813 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2021-11-04 09:03:17,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 09:03:17,813 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-04 09:04:04,016 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-04 09:04:04,017 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-04 09:04:04,017 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 09:04:04,017 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-04 09:04:04,018 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-04 09:04:04,018 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2021-11-04 09:04:04,018 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2021-11-04 09:04:04,018 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 09:04:04,018 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res := 0; [2021-11-04 09:04:04,018 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res := 0; [2021-11-04 09:04:04,019 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 09:04:04,020 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 09:04:04,109 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 09:04:04,109 INFO L299 CfgBuilder]: Removed 21830 assume(true) statements. [2021-11-04 09:04:04,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 09:04:04 BoogieIcfgContainer [2021-11-04 09:04:04,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 09:04:04,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 09:04:04,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 09:04:04,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 09:04:04,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 09:03:10" (1/3) ... [2021-11-04 09:04:04,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74769e36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 09:04:04, skipping insertion in model container [2021-11-04 09:04:04,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:03:13" (2/3) ... [2021-11-04 09:04:04,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74769e36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 09:04:04, skipping insertion in model container [2021-11-04 09:04:04,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 09:04:04" (3/3) ... [2021-11-04 09:04:04,129 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-04 09:04:04,132 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 09:04:04,133 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-04 09:04:04,205 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 09:04:04,211 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 [2021-11-04 09:04:04,211 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-04 09:04:04,372 INFO L276 IsEmpty]: Start isEmpty. Operand has 17632 states, 17521 states have (on average 1.2907368300896067) internal successors, (22615), 17523 states have internal predecessors, (22615), 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) [2021-11-04 09:04:04,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-04 09:04:04,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:04:04,403 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] [2021-11-04 09:04:04,403 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting de4x5_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [de4x5_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 09:04:04,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:04:04,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1054011777, now seen corresponding path program 1 times [2021-11-04 09:04:04,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:04:04,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879229109] [2021-11-04 09:04:04,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:04:04,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:04:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:04:05,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:04:05,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:04:05,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879229109] [2021-11-04 09:04:05,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879229109] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:04:05,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:04:05,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:04:05,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641509736] [2021-11-04 09:04:05,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:04:05,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:04:05,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:04:05,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:04:05,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:04:05,127 INFO L87 Difference]: Start difference. First operand has 17632 states, 17521 states have (on average 1.2907368300896067) internal successors, (22615), 17523 states have internal predecessors, (22615), 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 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2021-11-04 09:04:07,375 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:06:40,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:06:40,277 INFO L93 Difference]: Finished difference Result 48591 states and 63143 transitions. [2021-11-04 09:06:40,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:06:40,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 86 [2021-11-04 09:06:40,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:06:40,484 INFO L225 Difference]: With dead ends: 48591 [2021-11-04 09:06:40,484 INFO L226 Difference]: Without dead ends: 30778 [2021-11-04 09:06:40,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.03ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:06:40,676 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 18003 mSDsluCounter, 21911 mSDsCounter, 0 mSdLazyCounter, 43293 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 138170.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18003 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 43313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 284.06ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 43293 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 151273.19ms IncrementalHoareTripleChecker+Time [2021-11-04 09:06:40,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18003 Valid, 781 Invalid, 43313 Unknown, 0 Unchecked, 284.06ms Time], IncrementalHoareTripleChecker [19 Valid, 43293 Invalid, 1 Unknown, 0 Unchecked, 151273.19ms Time] [2021-11-04 09:06:40,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30778 states. [2021-11-04 09:06:41,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30778 to 30770. [2021-11-04 09:06:41,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30770 states, 30557 states have (on average 1.2775141538763621) internal successors, (39037), 30559 states have internal predecessors, (39037), 167 states have call successors, (167), 44 states have call predecessors, (167), 44 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) [2021-11-04 09:06:41,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30770 states to 30770 states and 39371 transitions. [2021-11-04 09:06:41,603 INFO L78 Accepts]: Start accepts. Automaton has 30770 states and 39371 transitions. Word has length 86 [2021-11-04 09:06:41,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:06:41,605 INFO L470 AbstractCegarLoop]: Abstraction has 30770 states and 39371 transitions. [2021-11-04 09:06:41,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2021-11-04 09:06:41,607 INFO L276 IsEmpty]: Start isEmpty. Operand 30770 states and 39371 transitions. [2021-11-04 09:06:41,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-04 09:06:41,622 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:06:41,622 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] [2021-11-04 09:06:41,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 09:06:41,623 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [de4x5_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 09:06:41,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:06:41,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1596591377, now seen corresponding path program 1 times [2021-11-04 09:06:41,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:06:41,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980190823] [2021-11-04 09:06:41,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:06:41,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:06:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:06:41,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:06:41,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:06:41,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980190823] [2021-11-04 09:06:41,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980190823] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:06:41,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:06:41,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:06:41,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454909785] [2021-11-04 09:06:41,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:06:41,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:06:41,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:06:41,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:06:41,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:06:41,943 INFO L87 Difference]: Start difference. First operand 30770 states and 39371 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2021-11-04 09:06:43,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:10:12,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:10:12,062 INFO L93 Difference]: Finished difference Result 90909 states and 116603 transitions. [2021-11-04 09:10:12,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:10:12,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2021-11-04 09:10:12,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:10:12,484 INFO L225 Difference]: With dead ends: 90909 [2021-11-04 09:10:12,485 INFO L226 Difference]: Without dead ends: 60263 [2021-11-04 09:10:12,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.51ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:10:12,690 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 20968 mSDsluCounter, 21330 mSDsCounter, 0 mSdLazyCounter, 42524 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 177194.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20968 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 42537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 281.46ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 42524 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 205091.40ms IncrementalHoareTripleChecker+Time [2021-11-04 09:10:12,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20968 Valid, 594 Invalid, 42537 Unknown, 0 Unchecked, 281.46ms Time], IncrementalHoareTripleChecker [12 Valid, 42524 Invalid, 1 Unknown, 0 Unchecked, 205091.40ms Time] [2021-11-04 09:10:12,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60263 states. [2021-11-04 09:10:13,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60263 to 60126. [2021-11-04 09:10:13,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60126 states, 59702 states have (on average 1.27702589527989) internal successors, (76241), 59705 states have internal predecessors, (76241), 334 states have call successors, (334), 88 states have call predecessors, (334), 88 states have return successors, (636), 334 states have call predecessors, (636), 334 states have call successors, (636) [2021-11-04 09:10:14,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60126 states to 60126 states and 77211 transitions. [2021-11-04 09:10:14,189 INFO L78 Accepts]: Start accepts. Automaton has 60126 states and 77211 transitions. Word has length 91 [2021-11-04 09:10:14,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:10:14,191 INFO L470 AbstractCegarLoop]: Abstraction has 60126 states and 77211 transitions. [2021-11-04 09:10:14,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2021-11-04 09:10:14,192 INFO L276 IsEmpty]: Start isEmpty. Operand 60126 states and 77211 transitions. [2021-11-04 09:10:14,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-04 09:10:14,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:10:14,217 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] [2021-11-04 09:10:14,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 09:10:14,218 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting de4x5_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [de4x5_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 09:10:14,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:10:14,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1781012299, now seen corresponding path program 1 times [2021-11-04 09:10:14,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:10:14,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555257278] [2021-11-04 09:10:14,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:10:14,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:10:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:10:14,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:10:14,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:10:14,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555257278] [2021-11-04 09:10:14,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555257278] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:10:14,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:10:14,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:10:14,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671896215] [2021-11-04 09:10:14,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:10:14,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:10:14,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:10:14,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:10:14,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:10:14,491 INFO L87 Difference]: Start difference. First operand 60126 states and 77211 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:10:16,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:14:16,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:14:16,288 INFO L93 Difference]: Finished difference Result 178118 states and 228711 transitions. [2021-11-04 09:14:16,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:14:16,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-04 09:14:16,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:14:17,143 INFO L225 Difference]: With dead ends: 178118 [2021-11-04 09:14:17,143 INFO L226 Difference]: Without dead ends: 118116 [2021-11-04 09:14:17,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.83ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:14:17,532 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 20786 mSDsluCounter, 21558 mSDsCounter, 0 mSdLazyCounter, 42850 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 194584.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20786 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 42860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 253.24ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 42850 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 235913.37ms IncrementalHoareTripleChecker+Time [2021-11-04 09:14:17,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20786 Valid, 434 Invalid, 42860 Unknown, 0 Unchecked, 253.24ms Time], IncrementalHoareTripleChecker [9 Valid, 42850 Invalid, 1 Unknown, 0 Unchecked, 235913.37ms Time] [2021-11-04 09:14:17,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118116 states. [2021-11-04 09:14:19,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118116 to 118108. [2021-11-04 09:14:20,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118108 states, 117266 states have (on average 1.2764569440417513) internal successors, (149685), 117271 states have internal predecessors, (149685), 664 states have call successors, (664), 176 states have call predecessors, (664), 176 states have return successors, (1264), 664 states have call predecessors, (1264), 664 states have call successors, (1264) [2021-11-04 09:14:20,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118108 states to 118108 states and 151613 transitions. [2021-11-04 09:14:20,788 INFO L78 Accepts]: Start accepts. Automaton has 118108 states and 151613 transitions. Word has length 108 [2021-11-04 09:14:20,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:14:20,789 INFO L470 AbstractCegarLoop]: Abstraction has 118108 states and 151613 transitions. [2021-11-04 09:14:20,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:14:20,789 INFO L276 IsEmpty]: Start isEmpty. Operand 118108 states and 151613 transitions. [2021-11-04 09:14:20,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-04 09:14:20,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:14:20,815 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] [2021-11-04 09:14:20,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 09:14:20,815 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting de4x5_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [de4x5_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 09:14:20,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:14:20,816 INFO L85 PathProgramCache]: Analyzing trace with hash -2015465521, now seen corresponding path program 1 times [2021-11-04 09:14:20,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:14:20,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767701150] [2021-11-04 09:14:20,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:14:20,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:14:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:14:21,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:14:21,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:14:21,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767701150] [2021-11-04 09:14:21,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767701150] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:14:21,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:14:21,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:14:21,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244415178] [2021-11-04 09:14:21,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:14:21,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:14:21,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:14:21,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:14:21,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:14:21,069 INFO L87 Difference]: Start difference. First operand 118108 states and 151613 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:14:23,161 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15