./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 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-dev-173e394 [2021-11-06 19:06:38,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 19:06:38,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 19:06:39,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 19:06:39,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 19:06:39,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 19:06:39,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 19:06:39,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 19:06:39,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 19:06:39,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 19:06:39,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 19:06:39,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 19:06:39,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 19:06:39,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 19:06:39,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 19:06:39,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 19:06:39,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 19:06:39,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 19:06:39,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 19:06:39,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 19:06:39,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 19:06:39,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 19:06:39,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 19:06:39,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 19:06:39,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 19:06:39,023 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 19:06:39,023 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 19:06:39,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 19:06:39,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 19:06:39,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 19:06:39,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 19:06:39,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 19:06:39,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 19:06:39,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 19:06:39,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 19:06:39,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 19:06:39,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 19:06:39,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 19:06:39,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 19:06:39,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 19:06:39,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 19:06:39,030 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 19:06:39,046 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 19:06:39,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 19:06:39,047 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 19:06:39,047 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 19:06:39,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 19:06:39,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 19:06:39,048 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 19:06:39,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 19:06:39,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 19:06:39,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 19:06:39,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 19:06:39,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 19:06:39,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 19:06:39,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 19:06:39,049 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 19:06:39,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 19:06:39,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 19:06:39,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 19:06:39,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 19:06:39,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 19:06:39,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 19:06:39,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 19:06:39,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 19:06:39,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 19:06:39,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 19:06:39,050 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 19:06:39,051 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 19:06:39,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 19:06:39,051 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 19:06:39,055 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 [2021-11-06 19:06:39,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 19:06:39,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 19:06:39,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 19:06:39,293 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 19:06:39,294 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 19:06:39,294 INFO L432 ainManager$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 [2021-11-06 19:06:39,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77c74212b/72d371a136b14794b5bd8704e0828a05/FLAG2922c943a [2021-11-06 19:06:40,055 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 19:06:40,056 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 [2021-11-06 19:06:40,111 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77c74212b/72d371a136b14794b5bd8704e0828a05/FLAG2922c943a [2021-11-06 19:06:40,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77c74212b/72d371a136b14794b5bd8704e0828a05 [2021-11-06 19:06:40,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 19:06:40,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 19:06:40,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 19:06:40,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 19:06:40,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 19:06:40,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:06:40" (1/1) ... [2021-11-06 19:06:40,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46669790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:40, skipping insertion in model container [2021-11-06 19:06:40,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:06:40" (1/1) ... [2021-11-06 19:06:40,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 19:06:40,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 19:06:42,445 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] [2021-11-06 19:06:42,448 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] [2021-11-06 19:06:42,448 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] [2021-11-06 19:06:42,449 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] [2021-11-06 19:06:42,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 19:06:42,483 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 19:06:43,134 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] [2021-11-06 19:06:43,134 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] [2021-11-06 19:06:43,135 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] [2021-11-06 19:06:43,135 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] [2021-11-06 19:06:43,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 19:06:43,286 INFO L208 MainTranslator]: Completed translation [2021-11-06 19:06:43,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:43 WrapperNode [2021-11-06 19:06:43,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 19:06:43,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 19:06:43,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 19:06:43,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 19:06:43,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:43" (1/1) ... [2021-11-06 19:06:43,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:43" (1/1) ... [2021-11-06 19:06:48,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 19:06:48,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 19:06:48,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 19:06:48,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 19:06:48,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:43" (1/1) ... [2021-11-06 19:06:48,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:43" (1/1) ... [2021-11-06 19:06:50,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:43" (1/1) ... [2021-11-06 19:06:50,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:43" (1/1) ... [2021-11-06 19:06:51,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:43" (1/1) ... [2021-11-06 19:06:52,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:43" (1/1) ... [2021-11-06 19:06:52,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:43" (1/1) ... [2021-11-06 19:06:53,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 19:06:53,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 19:06:53,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 19:06:53,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 19:06:53,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:43" (1/1) ... [2021-11-06 19:06:53,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 19:06:53,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 19:06:53,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 19:06:53,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 19:06:53,405 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2021-11-06 19:06:53,405 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2021-11-06 19:06:53,405 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2021-11-06 19:06:53,406 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2021-11-06 19:06:53,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 19:06:53,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 19:06:53,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 19:06:53,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 19:06:53,406 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2021-11-06 19:06:53,406 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2021-11-06 19:06:53,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 19:06:53,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 19:06:53,407 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 19:06:53,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 19:06:53,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 19:06:53,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 19:06:53,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 19:06:53,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 19:06:53,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 19:06:53,408 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2021-11-06 19:06:53,408 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2021-11-06 19:06:53,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 19:06:53,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 19:06:53,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 19:06:53,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 19:06:53,409 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 19:06:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 19:07:37,813 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 19:07:37,814 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-06 19:07:37,814 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-06 19:07:37,814 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-06 19:07:37,814 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-06 19:07:37,814 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res := 0; [2021-11-06 19:07:37,814 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res := 0; [2021-11-06 19:07:37,815 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#7: ldv_switch_2_#res := 0; [2021-11-06 19:07:37,815 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#8: ldv_switch_2_#res := 0; [2021-11-06 19:07:37,815 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 19:07:37,815 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-06 19:07:37,821 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 19:07:37,821 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 19:07:37,822 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint lmc_trace_returnLabel#14: havoc lmc_proto_type_#t~mem1375.base, lmc_proto_type_#t~mem1375.offset; [2021-11-06 19:07:37,822 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint lmc_trace_returnLabel#10: havoc lmc_proto_type_#t~mem1375.base, lmc_proto_type_#t~mem1375.offset; [2021-11-06 19:07:37,912 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 19:07:37,912 INFO L299 CfgBuilder]: Removed 40678 assume(true) statements. [2021-11-06 19:07:37,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:07:37 BoogieIcfgContainer [2021-11-06 19:07:37,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 19:07:37,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 19:07:37,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 19:07:37,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 19:07:37,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:06:40" (1/3) ... [2021-11-06 19:07:37,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65cc6ce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:07:37, skipping insertion in model container [2021-11-06 19:07:37,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:43" (2/3) ... [2021-11-06 19:07:37,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65cc6ce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:07:37, skipping insertion in model container [2021-11-06 19:07:37,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:07:37" (3/3) ... [2021-11-06 19:07:37,944 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-06 19:07:37,947 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 19:07:37,947 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 68 error locations. [2021-11-06 19:07:38,055 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 19:07:38,060 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 19:07:38,060 INFO L340 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2021-11-06 19:07:38,335 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) [2021-11-06 19:07:38,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-06 19:07:38,350 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:07:38,350 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:07:38,351 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)] === [2021-11-06 19:07:38,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:07:38,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1944323651, now seen corresponding path program 1 times [2021-11-06 19:07:38,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:07:38,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945602813] [2021-11-06 19:07:38,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:07:38,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:07:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:07:39,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:07:39,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:07:39,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945602813] [2021-11-06 19:07:39,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945602813] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:07:39,147 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:07:39,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:07:39,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400305716] [2021-11-06 19:07:39,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:07:39,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:07:39,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:07:39,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:07:39,205 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) [2021-11-06 19:07:42,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:07:42,968 INFO L93 Difference]: Finished difference Result 94470 states and 117796 transitions. [2021-11-06 19:07:42,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:07:42,970 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 [2021-11-06 19:07:42,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:07:43,251 INFO L225 Difference]: With dead ends: 94470 [2021-11-06 19:07:43,251 INFO L226 Difference]: Without dead ends: 62620 [2021-11-06 19:07:43,552 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:07:43,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62620 states. [2021-11-06 19:07:44,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62620 to 62562. [2021-11-06 19:07:44,831 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) [2021-11-06 19:07:45,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62562 states to 62562 states and 77677 transitions. [2021-11-06 19:07:45,055 INFO L78 Accepts]: Start accepts. Automaton has 62562 states and 77677 transitions. Word has length 63 [2021-11-06 19:07:45,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:07:45,057 INFO L470 AbstractCegarLoop]: Abstraction has 62562 states and 77677 transitions. [2021-11-06 19:07:45,057 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) [2021-11-06 19:07:45,057 INFO L276 IsEmpty]: Start isEmpty. Operand 62562 states and 77677 transitions. [2021-11-06 19:07:45,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-06 19:07:45,060 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:07:45,061 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:07:45,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 19:07:45,061 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)] === [2021-11-06 19:07:45,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:07:45,063 INFO L85 PathProgramCache]: Analyzing trace with hash -691082562, now seen corresponding path program 1 times [2021-11-06 19:07:45,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:07:45,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754674341] [2021-11-06 19:07:45,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:07:45,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:07:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:07:45,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:07:45,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:07:45,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754674341] [2021-11-06 19:07:45,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754674341] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:07:45,250 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:07:45,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:07:45,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531838034] [2021-11-06 19:07:45,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:07:45,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:07:45,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:07:45,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:07:45,253 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) [2021-11-06 19:07:50,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:07:50,232 INFO L93 Difference]: Finished difference Result 186826 states and 231989 transitions. [2021-11-06 19:07:50,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:07:50,234 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 [2021-11-06 19:07:50,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:07:50,781 INFO L225 Difference]: With dead ends: 186826 [2021-11-06 19:07:50,781 INFO L226 Difference]: Without dead ends: 124388 [2021-11-06 19:07:50,992 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:07:51,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124388 states. [2021-11-06 19:07:53,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124388 to 124094. [2021-11-06 19:07:53,877 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) [2021-11-06 19:07:54,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124094 states to 124094 states and 154181 transitions. [2021-11-06 19:07:54,740 INFO L78 Accepts]: Start accepts. Automaton has 124094 states and 154181 transitions. Word has length 64 [2021-11-06 19:07:54,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:07:54,740 INFO L470 AbstractCegarLoop]: Abstraction has 124094 states and 154181 transitions. [2021-11-06 19:07:54,740 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) [2021-11-06 19:07:54,740 INFO L276 IsEmpty]: Start isEmpty. Operand 124094 states and 154181 transitions. [2021-11-06 19:07:54,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-06 19:07:54,742 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:07:54,743 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:07:54,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 19:07:54,743 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)] === [2021-11-06 19:07:54,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:07:54,749 INFO L85 PathProgramCache]: Analyzing trace with hash -570518936, now seen corresponding path program 1 times [2021-11-06 19:07:54,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:07:54,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578884289] [2021-11-06 19:07:54,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:07:54,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:07:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:07:54,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:07:54,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:07:54,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578884289] [2021-11-06 19:07:54,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578884289] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:07:54,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:07:54,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:07:54,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586821146] [2021-11-06 19:07:54,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:07:54,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:07:54,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:07:54,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:07:54,906 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) [2021-11-06 19:08:02,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:08:02,011 INFO L93 Difference]: Finished difference Result 356830 states and 443689 transitions. [2021-11-06 19:08:02,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:08:02,012 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 [2021-11-06 19:08:02,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:08:02,943 INFO L225 Difference]: With dead ends: 356830 [2021-11-06 19:08:02,944 INFO L226 Difference]: Without dead ends: 232860 [2021-11-06 19:08:03,635 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:08:03,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232860 states. [2021-11-06 19:08:09,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232860 to 231248. [2021-11-06 19:08:09,431 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) [2021-11-06 19:08:10,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231248 states to 231248 states and 287691 transitions. [2021-11-06 19:08:10,800 INFO L78 Accepts]: Start accepts. Automaton has 231248 states and 287691 transitions. Word has length 70 [2021-11-06 19:08:10,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:08:10,801 INFO L470 AbstractCegarLoop]: Abstraction has 231248 states and 287691 transitions. [2021-11-06 19:08:10,801 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) [2021-11-06 19:08:10,802 INFO L276 IsEmpty]: Start isEmpty. Operand 231248 states and 287691 transitions. [2021-11-06 19:08:10,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-06 19:08:10,804 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:08:10,804 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:08:10,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 19:08:10,805 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)] === [2021-11-06 19:08:10,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:08:10,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1980861288, now seen corresponding path program 1 times [2021-11-06 19:08:10,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:08:10,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320812182] [2021-11-06 19:08:10,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:08:10,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:08:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:08:10,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:08:10,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:08:10,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320812182] [2021-11-06 19:08:10,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320812182] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:08:10,972 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:08:10,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:08:10,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184977028] [2021-11-06 19:08:10,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:08:10,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:08:10,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:08:10,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:08:10,974 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)