./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-wireless-rtl818x-rtl8180-rtl8180.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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.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 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 12:42:25,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 12:42:25,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 12:42:25,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 12:42:25,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 12:42:25,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 12:42:25,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 12:42:25,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 12:42:25,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 12:42:25,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 12:42:25,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 12:42:25,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 12:42:25,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 12:42:25,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 12:42:25,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 12:42:25,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 12:42:25,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 12:42:25,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 12:42:25,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 12:42:25,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 12:42:25,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 12:42:25,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 12:42:25,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 12:42:25,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 12:42:25,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 12:42:25,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 12:42:25,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 12:42:25,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 12:42:25,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 12:42:25,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 12:42:25,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 12:42:25,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 12:42:25,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 12:42:25,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 12:42:25,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 12:42:25,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 12:42:25,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 12:42:25,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 12:42:25,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 12:42:25,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 12:42:25,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 12:42:25,514 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 12:42:25,538 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 12:42:25,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 12:42:25,539 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 12:42:25,539 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 12:42:25,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 12:42:25,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 12:42:25,541 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 12:42:25,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 12:42:25,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 12:42:25,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 12:42:25,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 12:42:25,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 12:42:25,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 12:42:25,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 12:42:25,542 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 12:42:25,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 12:42:25,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 12:42:25,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 12:42:25,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 12:42:25,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 12:42:25,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 12:42:25,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 12:42:25,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 12:42:25,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 12:42:25,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 12:42:25,545 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 12:42:25,545 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 12:42:25,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 12:42:25,545 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 12:42:25,546 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 [2021-11-04 12:42:25,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 12:42:25,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 12:42:25,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 12:42:25,798 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 12:42:25,800 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 12:42:25,801 INFO L432 ainManager$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-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-04 12:42:25,864 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25c1ea251/a851100a350f47f08171483d0a7d72b8/FLAGf2bda5f35 [2021-11-04 12:42:26,791 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 12:42:26,792 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-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-04 12:42:26,853 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25c1ea251/a851100a350f47f08171483d0a7d72b8/FLAGf2bda5f35 [2021-11-04 12:42:26,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25c1ea251/a851100a350f47f08171483d0a7d72b8 [2021-11-04 12:42:26,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 12:42:26,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 12:42:26,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 12:42:26,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 12:42:26,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 12:42:26,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 12:42:26" (1/1) ... [2021-11-04 12:42:26,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27ef4818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:42:26, skipping insertion in model container [2021-11-04 12:42:26,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 12:42:26" (1/1) ... [2021-11-04 12:42:26,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 12:42:27,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 12:42:30,802 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-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2021-11-04 12:42:30,809 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-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2021-11-04 12:42:30,810 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-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2021-11-04 12:42:30,810 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-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2021-11-04 12:42:30,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 12:42:30,946 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 12:42:31,272 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-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2021-11-04 12:42:31,273 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-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2021-11-04 12:42:31,274 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-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2021-11-04 12:42:31,274 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-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2021-11-04 12:42:31,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 12:42:31,426 INFO L208 MainTranslator]: Completed translation [2021-11-04 12:42:31,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:42:31 WrapperNode [2021-11-04 12:42:31,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 12:42:31,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 12:42:31,428 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 12:42:31,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 12:42:31,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:42:31" (1/1) ... [2021-11-04 12:42:31,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:42:31" (1/1) ... [2021-11-04 12:42:34,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 12:42:34,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 12:42:34,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 12:42:34,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 12:42:34,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:42:31" (1/1) ... [2021-11-04 12:42:34,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:42:31" (1/1) ... [2021-11-04 12:42:35,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:42:31" (1/1) ... [2021-11-04 12:42:35,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:42:31" (1/1) ... [2021-11-04 12:42:37,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:42:31" (1/1) ... [2021-11-04 12:42:37,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:42:31" (1/1) ... [2021-11-04 12:42:37,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:42:31" (1/1) ... [2021-11-04 12:42:38,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 12:42:38,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 12:42:38,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 12:42:38,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 12:42:38,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:42:31" (1/1) ... [2021-11-04 12:42:38,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 12:42:38,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 12:42:38,391 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 12:42:38,414 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 12:42:38,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 12:42:38,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 12:42:38,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 12:42:38,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 12:42:38,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 12:42:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 12:42:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 12:42:38,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 12:42:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 12:42:38,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 12:42:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 12:42:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 12:42:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2021-11-04 12:42:38,436 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2021-11-04 12:42:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 12:42:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 12:42:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 12:42:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 12:42:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-04 12:42:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 12:42:50,697 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-04 12:42:50,698 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-04 12:42:50,698 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 12:42:50,699 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-04 12:42:50,699 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-04 12:42:50,699 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2021-11-04 12:42:50,699 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2021-11-04 12:42:50,699 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 12:42:50,699 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res := 0; [2021-11-04 12:42:50,700 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res := 0; [2021-11-04 12:42:50,700 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#9: ldv_switch_0_#res := 0; [2021-11-04 12:42:50,701 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#11: ldv_switch_0_#res := 0; [2021-11-04 12:42:50,701 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#10: ldv_switch_0_#res := 0; [2021-11-04 12:42:50,701 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#12: ldv_switch_0_#res := 0; [2021-11-04 12:42:50,703 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 12:42:50,707 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 12:42:50,789 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 12:42:50,789 INFO L299 CfgBuilder]: Removed 30415 assume(true) statements. [2021-11-04 12:42:50,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 12:42:50 BoogieIcfgContainer [2021-11-04 12:42:50,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 12:42:50,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 12:42:50,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 12:42:50,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 12:42:50,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 12:42:26" (1/3) ... [2021-11-04 12:42:50,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee80287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 12:42:50, skipping insertion in model container [2021-11-04 12:42:50,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:42:31" (2/3) ... [2021-11-04 12:42:50,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee80287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 12:42:50, skipping insertion in model container [2021-11-04 12:42:50,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 12:42:50" (3/3) ... [2021-11-04 12:42:50,820 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-04 12:42:50,825 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 12:42:50,826 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2021-11-04 12:42:50,934 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 12:42:50,943 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 12:42:50,944 INFO L340 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2021-11-04 12:42:51,203 INFO L276 IsEmpty]: Start isEmpty. Operand has 17266 states, 17202 states have (on average 1.219625624927334) internal successors, (20980), 17251 states have internal predecessors, (20980), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-04 12:42:51,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-04 12:42:51,228 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 12:42:51,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 12:42:51,229 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-04 12:42:51,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 12:42:51,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1200985652, now seen corresponding path program 1 times [2021-11-04 12:42:51,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 12:42:51,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113202411] [2021-11-04 12:42:51,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 12:42:51,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 12:42:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 12:42:52,053 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 12:42:52,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 12:42:52,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113202411] [2021-11-04 12:42:52,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113202411] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 12:42:52,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 12:42:52,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 12:42:52,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143275872] [2021-11-04 12:42:52,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 12:42:52,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 12:42:52,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 12:42:52,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 12:42:52,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:42:52,132 INFO L87 Difference]: Start difference. First operand has 17266 states, 17202 states have (on average 1.219625624927334) internal successors, (20980), 17251 states have internal predecessors, (20980), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 12:42:59,246 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:43:16,884 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:43:45,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 12:43:45,816 INFO L93 Difference]: Finished difference Result 50408 states and 61299 transitions. [2021-11-04 12:43:45,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 12:43:45,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 126 [2021-11-04 12:43:45,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 12:43:46,057 INFO L225 Difference]: With dead ends: 50408 [2021-11-04 12:43:46,058 INFO L226 Difference]: Without dead ends: 33082 [2021-11-04 12:43:46,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.58ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:43:46,206 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 19682 mSDsluCounter, 20840 mSDsCounter, 0 mSdLazyCounter, 41192 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42834.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19682 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 41201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 102.26ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41192 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51562.47ms IncrementalHoareTripleChecker+Time [2021-11-04 12:43:46,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19682 Valid, 576 Invalid, 41201 Unknown, 0 Unchecked, 102.26ms Time], IncrementalHoareTripleChecker [7 Valid, 41192 Invalid, 2 Unknown, 0 Unchecked, 51562.47ms Time] [2021-11-04 12:43:46,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33082 states. [2021-11-04 12:43:47,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33082 to 33046. [2021-11-04 12:43:47,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33046 states, 32967 states have (on average 1.2018988685655352) internal successors, (39623), 33017 states have internal predecessors, (39623), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-11-04 12:43:47,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33046 states to 33046 states and 39675 transitions. [2021-11-04 12:43:47,548 INFO L78 Accepts]: Start accepts. Automaton has 33046 states and 39675 transitions. Word has length 126 [2021-11-04 12:43:47,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 12:43:47,550 INFO L470 AbstractCegarLoop]: Abstraction has 33046 states and 39675 transitions. [2021-11-04 12:43:47,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 12:43:47,552 INFO L276 IsEmpty]: Start isEmpty. Operand 33046 states and 39675 transitions. [2021-11-04 12:43:47,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-04 12:43:47,555 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 12:43:47,556 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 12:43:47,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 12:43:47,558 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-04 12:43:47,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 12:43:47,560 INFO L85 PathProgramCache]: Analyzing trace with hash -289314059, now seen corresponding path program 1 times [2021-11-04 12:43:47,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 12:43:47,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004278925] [2021-11-04 12:43:47,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 12:43:47,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 12:43:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 12:43:47,926 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 12:43:47,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 12:43:47,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004278925] [2021-11-04 12:43:47,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004278925] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 12:43:47,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 12:43:47,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 12:43:47,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779945937] [2021-11-04 12:43:47,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 12:43:47,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 12:43:47,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 12:43:47,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 12:43:47,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:43:47,933 INFO L87 Difference]: Start difference. First operand 33046 states and 39675 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 12:44:06,209 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:44:15,721 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:45:06,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 12:45:06,988 INFO L93 Difference]: Finished difference Result 97430 states and 116985 transitions. [2021-11-04 12:45:06,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 12:45:06,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 127 [2021-11-04 12:45:06,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 12:45:07,308 INFO L225 Difference]: With dead ends: 97430 [2021-11-04 12:45:07,309 INFO L226 Difference]: Without dead ends: 64676 [2021-11-04 12:45:07,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.94ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:45:07,519 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 19188 mSDsluCounter, 20221 mSDsCounter, 0 mSdLazyCounter, 40584 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61588.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19188 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 40594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 111.51ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40584 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76053.63ms IncrementalHoareTripleChecker+Time [2021-11-04 12:45:07,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19188 Valid, 74 Invalid, 40594 Unknown, 0 Unchecked, 111.51ms Time], IncrementalHoareTripleChecker [8 Valid, 40584 Invalid, 2 Unknown, 0 Unchecked, 76053.63ms Time] [2021-11-04 12:45:07,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64676 states. [2021-11-04 12:45:09,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64676 to 64398. [2021-11-04 12:45:09,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64398 states, 64291 states have (on average 1.2013034483831329) internal successors, (77233), 64345 states have internal predecessors, (77233), 52 states have call successors, (52), 8 states have call predecessors, (52), 6 states have return successors, (74), 46 states have call predecessors, (74), 52 states have call successors, (74) [2021-11-04 12:45:09,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64398 states to 64398 states and 77359 transitions. [2021-11-04 12:45:09,644 INFO L78 Accepts]: Start accepts. Automaton has 64398 states and 77359 transitions. Word has length 127 [2021-11-04 12:45:09,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 12:45:09,645 INFO L470 AbstractCegarLoop]: Abstraction has 64398 states and 77359 transitions. [2021-11-04 12:45:09,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 12:45:09,645 INFO L276 IsEmpty]: Start isEmpty. Operand 64398 states and 77359 transitions. [2021-11-04 12:45:09,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-04 12:45:09,659 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 12:45:09,659 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 12:45:09,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 12:45:09,660 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-04 12:45:09,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 12:45:09,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1815155163, now seen corresponding path program 1 times [2021-11-04 12:45:09,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 12:45:09,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543112986] [2021-11-04 12:45:09,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 12:45:09,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 12:45:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 12:45:10,005 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 12:45:10,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 12:45:10,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543112986] [2021-11-04 12:45:10,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543112986] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 12:45:10,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 12:45:10,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 12:45:10,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987515297] [2021-11-04 12:45:10,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 12:45:10,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 12:45:10,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 12:45:10,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 12:45:10,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:45:10,011 INFO L87 Difference]: Start difference. First operand 64398 states and 77359 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 12:45:11,559 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:45:51,867 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:45:53,893 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:46:08,975 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:46:14,025 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:47:32,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 12:47:32,251 INFO L93 Difference]: Finished difference Result 128536 states and 154425 transitions. [2021-11-04 12:47:32,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 12:47:32,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 155 [2021-11-04 12:47:32,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 12:47:32,668 INFO L225 Difference]: With dead ends: 128536 [2021-11-04 12:47:32,669 INFO L226 Difference]: Without dead ends: 96126 [2021-11-04 12:47:32,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.01ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:47:32,824 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 19319 mSDsluCounter, 20354 mSDsCounter, 0 mSdLazyCounter, 59993 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104662.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19319 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 60001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 148.44ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59993 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 138181.30ms IncrementalHoareTripleChecker+Time [2021-11-04 12:47:32,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19319 Valid, 78 Invalid, 60001 Unknown, 0 Unchecked, 148.44ms Time], IncrementalHoareTripleChecker [5 Valid, 59993 Invalid, 3 Unknown, 0 Unchecked, 138181.30ms Time] [2021-11-04 12:47:33,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96126 states. [2021-11-04 12:47:35,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96126 to 96090. [2021-11-04 12:47:35,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96090 states, 95954 states have (on average 1.2013985868228527) internal successors, (115279), 96011 states have internal predecessors, (115279), 78 states have call successors, (78), 12 states have call predecessors, (78), 9 states have return successors, (111), 69 states have call predecessors, (111), 78 states have call successors, (111) [2021-11-04 12:47:35,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96090 states to 96090 states and 115468 transitions. [2021-11-04 12:47:35,545 INFO L78 Accepts]: Start accepts. Automaton has 96090 states and 115468 transitions. Word has length 155 [2021-11-04 12:47:35,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 12:47:35,547 INFO L470 AbstractCegarLoop]: Abstraction has 96090 states and 115468 transitions. [2021-11-04 12:47:35,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 12:47:35,547 INFO L276 IsEmpty]: Start isEmpty. Operand 96090 states and 115468 transitions. [2021-11-04 12:47:35,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-04 12:47:35,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 12:47:35,561 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 12:47:35,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 12:47:35,561 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-04 12:47:35,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 12:47:35,562 INFO L85 PathProgramCache]: Analyzing trace with hash 535291485, now seen corresponding path program 1 times [2021-11-04 12:47:35,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 12:47:35,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464364856] [2021-11-04 12:47:35,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 12:47:35,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 12:47:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 12:47:36,230 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 12:47:36,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 12:47:36,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464364856] [2021-11-04 12:47:36,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464364856] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 12:47:36,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 12:47:36,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 12:47:36,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061290345] [2021-11-04 12:47:36,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 12:47:36,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 12:47:36,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 12:47:36,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 12:47:36,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:47:36,233 INFO L87 Difference]: Start difference. First operand 96090 states and 115468 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 12:48:49,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:49:15,461 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:49:21,935 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:51:22,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 12:51:22,662 INFO L93 Difference]: Finished difference Result 191922 states and 230647 transitions. [2021-11-04 12:51:22,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 12:51:22,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 155 [2021-11-04 12:51:22,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 12:51:23,257 INFO L225 Difference]: With dead ends: 191922 [2021-11-04 12:51:23,258 INFO L226 Difference]: Without dead ends: 127820 [2021-11-04 12:51:23,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.19ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:51:23,837 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 19365 mSDsluCounter, 20309 mSDsCounter, 0 mSdLazyCounter, 59950 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 158518.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19365 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 59958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 181.83ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59950 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 221332.39ms IncrementalHoareTripleChecker+Time [2021-11-04 12:51:23,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19365 Valid, 78 Invalid, 59958 Unknown, 0 Unchecked, 181.83ms Time], IncrementalHoareTripleChecker [6 Valid, 59950 Invalid, 2 Unknown, 0 Unchecked, 221332.39ms Time] [2021-11-04 12:51:23,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127820 states. [2021-11-04 12:51:26,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127820 to 127777. [2021-11-04 12:51:26,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127777 states, 127612 states have (on average 1.2014544086763) internal successors, (153320), 127672 states have internal predecessors, (153320), 104 states have call successors, (104), 16 states have call predecessors, (104), 12 states have return successors, (148), 92 states have call predecessors, (148), 104 states have call successors, (148) [2021-11-04 12:51:27,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127777 states to 127777 states and 153572 transitions. [2021-11-04 12:51:27,017 INFO L78 Accepts]: Start accepts. Automaton has 127777 states and 153572 transitions. Word has length 155 [2021-11-04 12:51:27,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 12:51:27,018 INFO L470 AbstractCegarLoop]: Abstraction has 127777 states and 153572 transitions. [2021-11-04 12:51:27,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 12:51:27,018 INFO L276 IsEmpty]: Start isEmpty. Operand 127777 states and 153572 transitions. [2021-11-04 12:51:27,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-04 12:51:27,041 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 12:51:27,041 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 12:51:27,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 12:51:27,042 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-04 12:51:27,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 12:51:27,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1115956186, now seen corresponding path program 1 times [2021-11-04 12:51:27,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 12:51:27,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429072774] [2021-11-04 12:51:27,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 12:51:27,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 12:51:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 12:51:27,482 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 12:51:27,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 12:51:27,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429072774] [2021-11-04 12:51:27,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429072774] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 12:51:27,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 12:51:27,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 12:51:27,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519826711] [2021-11-04 12:51:27,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 12:51:27,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 12:51:27,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 12:51:27,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 12:51:27,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 12:51:27,485 INFO L87 Difference]: Start difference. First operand 127777 states and 153572 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 3 states have internal predecessors, (147), 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 12:51:29,155 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:52:27,121 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:52:38,949 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15