./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.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 fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 20:53:48,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 20:53:48,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 20:53:48,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 20:53:48,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 20:53:48,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 20:53:48,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 20:53:48,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 20:53:48,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 20:53:48,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 20:53:48,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 20:53:48,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 20:53:48,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 20:53:48,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 20:53:48,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 20:53:48,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 20:53:48,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 20:53:48,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 20:53:48,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 20:53:48,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 20:53:48,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 20:53:48,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 20:53:48,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 20:53:48,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 20:53:48,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 20:53:48,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 20:53:48,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 20:53:48,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 20:53:48,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 20:53:48,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 20:53:48,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 20:53:48,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 20:53:48,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 20:53:48,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 20:53:48,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 20:53:48,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 20:53:48,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 20:53:48,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 20:53:48,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 20:53:48,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 20:53:48,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 20:53:48,463 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 20:53:48,478 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 20:53:48,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 20:53:48,478 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 20:53:48,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 20:53:48,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 20:53:48,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 20:53:48,480 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 20:53:48,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 20:53:48,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 20:53:48,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 20:53:48,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 20:53:48,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 20:53:48,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 20:53:48,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 20:53:48,481 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 20:53:48,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 20:53:48,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 20:53:48,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 20:53:48,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 20:53:48,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:53:48,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 20:53:48,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 20:53:48,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 20:53:48,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 20:53:48,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 20:53:48,483 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 20:53:48,483 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 20:53:48,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 20:53:48,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 20:53:48,483 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 [2021-11-05 20:53:48,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 20:53:48,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 20:53:48,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 20:53:48,769 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 20:53:48,770 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 20:53:48,771 INFO L432 ainManager$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-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-05 20:53:48,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f72aea59/5f6a6648ba99405197b81bbd09a8eac9/FLAG1b239130e [2021-11-05 20:53:49,478 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 20:53:49,479 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-05 20:53:49,520 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f72aea59/5f6a6648ba99405197b81bbd09a8eac9/FLAG1b239130e [2021-11-05 20:53:49,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f72aea59/5f6a6648ba99405197b81bbd09a8eac9 [2021-11-05 20:53:49,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 20:53:49,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 20:53:49,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 20:53:49,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 20:53:49,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 20:53:49,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:53:49" (1/1) ... [2021-11-05 20:53:49,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bbc2b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:49, skipping insertion in model container [2021-11-05 20:53:49,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:53:49" (1/1) ... [2021-11-05 20:53:49,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 20:53:50,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 20:53:51,952 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-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2021-11-05 20:53:51,955 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-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2021-11-05 20:53:51,956 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-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2021-11-05 20:53:51,956 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-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2021-11-05 20:53:51,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:53:52,001 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 20:53:52,570 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-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2021-11-05 20:53:52,571 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-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2021-11-05 20:53:52,571 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-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2021-11-05 20:53:52,572 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-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2021-11-05 20:53:52,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:53:52,769 INFO L208 MainTranslator]: Completed translation [2021-11-05 20:53:52,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:52 WrapperNode [2021-11-05 20:53:52,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 20:53:52,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 20:53:52,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 20:53:52,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 20:53:52,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:52" (1/1) ... [2021-11-05 20:53:52,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:52" (1/1) ... [2021-11-05 20:53:58,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 20:53:58,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 20:53:58,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 20:53:58,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 20:53:58,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:52" (1/1) ... [2021-11-05 20:53:58,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:52" (1/1) ... [2021-11-05 20:53:59,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:52" (1/1) ... [2021-11-05 20:53:59,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:52" (1/1) ... [2021-11-05 20:54:01,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:52" (1/1) ... [2021-11-05 20:54:01,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:52" (1/1) ... [2021-11-05 20:54:02,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:52" (1/1) ... [2021-11-05 20:54:02,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 20:54:02,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 20:54:02,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 20:54:02,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 20:54:02,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:52" (1/1) ... [2021-11-05 20:54:02,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:54:02,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 20:54:03,020 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) [2021-11-05 20:54:03,046 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 [2021-11-05 20:54:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2021-11-05 20:54:03,069 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2021-11-05 20:54:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2021-11-05 20:54:03,069 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2021-11-05 20:54:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 20:54:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 20:54:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 20:54:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 20:54:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2021-11-05 20:54:03,070 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2021-11-05 20:54:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 20:54:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 20:54:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 20:54:03,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 20:54:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 20:54:03,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 20:54:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 20:54:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 20:54:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 20:54:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2021-11-05 20:54:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2021-11-05 20:54:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 20:54:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 20:54:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 20:54:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 20:54:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-05 20:54:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-05 20:54:46,520 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 20:54:46,521 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-05 20:54:46,521 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-05 20:54:46,522 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-05 20:54:46,522 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-05 20:54:46,522 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res := 0; [2021-11-05 20:54:46,522 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res := 0; [2021-11-05 20:54:46,522 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#7: ldv_switch_2_#res := 0; [2021-11-05 20:54:46,522 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#8: ldv_switch_2_#res := 0; [2021-11-05 20:54:46,523 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 20:54:46,523 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-05 20:54:46,532 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 20:54:46,532 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 20:54:46,533 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint lmc_trace_returnLabel#14: havoc lmc_proto_type_#t~mem1375.base, lmc_proto_type_#t~mem1375.offset; [2021-11-05 20:54:46,534 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint lmc_trace_returnLabel#10: havoc lmc_proto_type_#t~mem1375.base, lmc_proto_type_#t~mem1375.offset; [2021-11-05 20:54:46,600 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 20:54:46,601 INFO L299 CfgBuilder]: Removed 40678 assume(true) statements. [2021-11-05 20:54:46,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:54:46 BoogieIcfgContainer [2021-11-05 20:54:46,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 20:54:46,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 20:54:46,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 20:54:46,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 20:54:46,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:53:49" (1/3) ... [2021-11-05 20:54:46,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e6e8d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:54:46, skipping insertion in model container [2021-11-05 20:54:46,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:52" (2/3) ... [2021-11-05 20:54:46,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e6e8d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:54:46, skipping insertion in model container [2021-11-05 20:54:46,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:54:46" (3/3) ... [2021-11-05 20:54:46,629 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-05 20:54:46,632 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 20:54:46,632 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 68 error locations. [2021-11-05 20:54:46,726 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 20:54:46,731 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 [2021-11-05 20:54:46,731 INFO L340 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2021-11-05 20:54:46,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 31672 states, 31567 states have (on average 1.2488674881997022) internal successors, (39423), 31638 states have internal predecessors, (39423), 31 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-05 20:54:47,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-05 20:54:47,009 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:47,009 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] [2021-11-05 20:54:47,010 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [lmc_driver_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, lmc_driver_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-05 20:54:47,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:47,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1944323651, now seen corresponding path program 1 times [2021-11-05 20:54:47,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:47,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133152598] [2021-11-05 20:54:47,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:47,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:47,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:54:47,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:47,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133152598] [2021-11-05 20:54:47,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133152598] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:47,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:47,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:47,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695324344] [2021-11-05 20:54:47,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:47,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:54:47,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:47,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:54:47,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:47,632 INFO L87 Difference]: Start difference. First operand has 31672 states, 31567 states have (on average 1.2488674881997022) internal successors, (39423), 31638 states have internal predecessors, (39423), 31 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-11-05 20:54:49,699 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 [] [2021-11-05 20:54:51,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:54:51,749 INFO L93 Difference]: Finished difference Result 94470 states and 117796 transitions. [2021-11-05 20:54:51,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:54:51,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2021-11-05 20:54:51,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:54:52,114 INFO L225 Difference]: With dead ends: 94470 [2021-11-05 20:54:52,114 INFO L226 Difference]: Without dead ends: 62620 [2021-11-05 20:54:52,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:52,275 INFO L933 BasicCegarLoop]: 39439 mSDtfsCounter, 38982 mSDsluCounter, 39356 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2094.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38982 SdHoareTripleChecker+Valid, 78795 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 190.61ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2226.77ms IncrementalHoareTripleChecker+Time [2021-11-05 20:54:52,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38982 Valid, 78795 Invalid, 44 Unknown, 0 Unchecked, 190.61ms Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 1 Unknown, 0 Unchecked, 2226.77ms Time] [2021-11-05 20:54:52,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62620 states. [2021-11-05 20:54:53,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62620 to 62562. [2021-11-05 20:54:53,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62562 states, 62420 states have (on average 1.2424383210509453) internal successors, (77553), 62495 states have internal predecessors, (77553), 62 states have call successors, (62), 12 states have call predecessors, (62), 12 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2021-11-05 20:54:54,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62562 states to 62562 states and 77677 transitions. [2021-11-05 20:54:54,137 INFO L78 Accepts]: Start accepts. Automaton has 62562 states and 77677 transitions. Word has length 63 [2021-11-05 20:54:54,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:54:54,139 INFO L470 AbstractCegarLoop]: Abstraction has 62562 states and 77677 transitions. [2021-11-05 20:54:54,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-11-05 20:54:54,141 INFO L276 IsEmpty]: Start isEmpty. Operand 62562 states and 77677 transitions. [2021-11-05 20:54:54,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-05 20:54:54,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:54,144 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] [2021-11-05 20:54:54,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 20:54:54,145 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [lmc_driver_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, lmc_driver_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-05 20:54:54,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:54,147 INFO L85 PathProgramCache]: Analyzing trace with hash -691082562, now seen corresponding path program 1 times [2021-11-05 20:54:54,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:54,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550637058] [2021-11-05 20:54:54,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:54,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:54,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:54:54,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:54,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550637058] [2021-11-05 20:54:54,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550637058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:54,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:54,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:54,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486163762] [2021-11-05 20:54:54,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:54,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:54:54,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:54,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:54:54,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:54,361 INFO L87 Difference]: Start difference. First operand 62562 states and 77677 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2021-11-05 20:54:56,402 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:54:59,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:54:59,129 INFO L93 Difference]: Finished difference Result 186826 states and 231989 transitions. [2021-11-05 20:54:59,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:54:59,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2021-11-05 20:54:59,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:54:59,604 INFO L225 Difference]: With dead ends: 186826 [2021-11-05 20:54:59,605 INFO L226 Difference]: Without dead ends: 124388 [2021-11-05 20:54:59,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.76ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:59,810 INFO L933 BasicCegarLoop]: 39383 mSDtfsCounter, 38500 mSDsluCounter, 38996 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2102.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38500 SdHoareTripleChecker+Valid, 78379 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 76.79ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2321.14ms IncrementalHoareTripleChecker+Time [2021-11-05 20:54:59,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38500 Valid, 78379 Invalid, 59 Unknown, 0 Unchecked, 76.79ms Time], IncrementalHoareTripleChecker [15 Valid, 43 Invalid, 1 Unknown, 0 Unchecked, 2321.14ms Time] [2021-11-05 20:54:59,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124388 states. [2021-11-05 20:55:02,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124388 to 124094. [2021-11-05 20:55:02,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124094 states, 123882 states have (on average 1.2426421917631294) internal successors, (153941), 123961 states have internal predecessors, (153941), 120 states have call successors, (120), 24 states have call predecessors, (120), 24 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2021-11-05 20:55:03,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124094 states to 124094 states and 154181 transitions. [2021-11-05 20:55:03,178 INFO L78 Accepts]: Start accepts. Automaton has 124094 states and 154181 transitions. Word has length 64 [2021-11-05 20:55:03,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:55:03,178 INFO L470 AbstractCegarLoop]: Abstraction has 124094 states and 154181 transitions. [2021-11-05 20:55:03,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2021-11-05 20:55:03,179 INFO L276 IsEmpty]: Start isEmpty. Operand 124094 states and 154181 transitions. [2021-11-05 20:55:03,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-05 20:55:03,181 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:55:03,181 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] [2021-11-05 20:55:03,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 20:55:03,182 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION === [lmc_driver_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, lmc_driver_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-05 20:55:03,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:55:03,182 INFO L85 PathProgramCache]: Analyzing trace with hash -570518936, now seen corresponding path program 1 times [2021-11-05 20:55:03,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:55:03,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861091306] [2021-11-05 20:55:03,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:55:03,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:55:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:55:03,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:55:03,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:55:03,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861091306] [2021-11-05 20:55:03,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861091306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:55:03,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:55:03,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:55:03,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482631028] [2021-11-05 20:55:03,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:55:03,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:55:03,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:55:03,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:55:03,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:55:03,375 INFO L87 Difference]: Start difference. First operand 124094 states and 154181 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-05 20:55:05,408 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:55:10,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:55:10,544 INFO L93 Difference]: Finished difference Result 356830 states and 443689 transitions. [2021-11-05 20:55:10,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:55:10,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2021-11-05 20:55:10,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:55:11,613 INFO L225 Difference]: With dead ends: 356830 [2021-11-05 20:55:11,613 INFO L226 Difference]: Without dead ends: 232860 [2021-11-05 20:55:12,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.98ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:55:12,300 INFO L933 BasicCegarLoop]: 39161 mSDtfsCounter, 34224 mSDsluCounter, 38986 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2085.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34224 SdHoareTripleChecker+Valid, 78147 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 78.74ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2283.12ms IncrementalHoareTripleChecker+Time [2021-11-05 20:55:12,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34224 Valid, 78147 Invalid, 60 Unknown, 0 Unchecked, 78.74ms Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 1 Unknown, 0 Unchecked, 2283.12ms Time] [2021-11-05 20:55:12,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232860 states. [2021-11-05 20:55:17,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232860 to 231248. [2021-11-05 20:55:17,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231248 states, 230912 states have (on average 1.2437075595898004) internal successors, (287187), 231003 states have internal predecessors, (287187), 220 states have call successors, (220), 48 states have call predecessors, (220), 48 states have return successors, (284), 220 states have call predecessors, (284), 220 states have call successors, (284) [2021-11-05 20:55:18,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231248 states to 231248 states and 287691 transitions. [2021-11-05 20:55:18,621 INFO L78 Accepts]: Start accepts. Automaton has 231248 states and 287691 transitions. Word has length 70 [2021-11-05 20:55:18,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:55:18,621 INFO L470 AbstractCegarLoop]: Abstraction has 231248 states and 287691 transitions. [2021-11-05 20:55:18,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-05 20:55:18,622 INFO L276 IsEmpty]: Start isEmpty. Operand 231248 states and 287691 transitions. [2021-11-05 20:55:18,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-05 20:55:18,626 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:55:18,626 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] [2021-11-05 20:55:18,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 20:55:18,626 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [lmc_driver_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, lmc_driver_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-05 20:55:18,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:55:18,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1980861288, now seen corresponding path program 1 times [2021-11-05 20:55:18,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:55:18,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711769116] [2021-11-05 20:55:18,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:55:18,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:55:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:55:18,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:55:18,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:55:18,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711769116] [2021-11-05 20:55:18,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711769116] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:55:18,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:55:18,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:55:18,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528051409] [2021-11-05 20:55:18,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:55:18,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:55:18,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:55:18,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:55:18,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:55:18,751 INFO L87 Difference]: Start difference. First operand 231248 states and 287691 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-05 20:55:20,821 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []