./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-mutex_drivers-net-ethernet-sun-cassini.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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-mutex_drivers-net-ethernet-sun-cassini.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 232e8c8bdb70ee1ad9fec7edefe8ce3076fc3bc6f131163eee7a33dd2ac504a2 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-03 00:10:14,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 00:10:14,500 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 00:10:14,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 00:10:14,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 00:10:14,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 00:10:14,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 00:10:14,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 00:10:14,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 00:10:14,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 00:10:14,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 00:10:14,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 00:10:14,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 00:10:14,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 00:10:14,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 00:10:14,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 00:10:14,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 00:10:14,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 00:10:14,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 00:10:14,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 00:10:14,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 00:10:14,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 00:10:14,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 00:10:14,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 00:10:14,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 00:10:14,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 00:10:14,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 00:10:14,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 00:10:14,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 00:10:14,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 00:10:14,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 00:10:14,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 00:10:14,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 00:10:14,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 00:10:14,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 00:10:14,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 00:10:14,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 00:10:14,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 00:10:14,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 00:10:14,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 00:10:14,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 00:10:14,577 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 00:10:14,591 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 00:10:14,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 00:10:14,592 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 00:10:14,592 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 00:10:14,593 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 00:10:14,593 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 00:10:14,593 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 00:10:14,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 00:10:14,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 00:10:14,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 00:10:14,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 00:10:14,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 00:10:14,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 00:10:14,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 00:10:14,594 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 00:10:14,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 00:10:14,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 00:10:14,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 00:10:14,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 00:10:14,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 00:10:14,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 00:10:14,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 00:10:14,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 00:10:14,595 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 00:10:14,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 00:10:14,596 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 00:10:14,596 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 00:10:14,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 00:10:14,596 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 00:10:14,596 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 232e8c8bdb70ee1ad9fec7edefe8ce3076fc3bc6f131163eee7a33dd2ac504a2 [2021-11-03 00:10:14,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 00:10:14,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 00:10:14,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 00:10:14,766 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 00:10:14,767 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 00:10:14,768 INFO L432 ainManager$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-mutex_drivers-net-ethernet-sun-cassini.cil.i [2021-11-03 00:10:14,816 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d0a1581c/af85dd8cb0c544788567a271d4a503e1/FLAG907cf9dd7 [2021-11-03 00:10:15,547 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 00:10:15,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i [2021-11-03 00:10:15,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d0a1581c/af85dd8cb0c544788567a271d4a503e1/FLAG907cf9dd7 [2021-11-03 00:10:15,653 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d0a1581c/af85dd8cb0c544788567a271d4a503e1 [2021-11-03 00:10:15,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 00:10:15,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 00:10:15,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 00:10:15,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 00:10:15,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 00:10:15,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:10:15" (1/1) ... [2021-11-03 00:10:15,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b2ff651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:10:15, skipping insertion in model container [2021-11-03 00:10:15,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:10:15" (1/1) ... [2021-11-03 00:10:15,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 00:10:15,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 00:10:18,587 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-mutex_drivers-net-ethernet-sun-cassini.cil.i[445023,445036] [2021-11-03 00:10:18,589 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-mutex_drivers-net-ethernet-sun-cassini.cil.i[445189,445202] [2021-11-03 00:10:18,590 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-mutex_drivers-net-ethernet-sun-cassini.cil.i[445353,445366] [2021-11-03 00:10:18,590 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-mutex_drivers-net-ethernet-sun-cassini.cil.i[445518,445531] [2021-11-03 00:10:18,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 00:10:18,632 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 00:10:18,925 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-mutex_drivers-net-ethernet-sun-cassini.cil.i[445023,445036] [2021-11-03 00:10:18,926 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-mutex_drivers-net-ethernet-sun-cassini.cil.i[445189,445202] [2021-11-03 00:10:18,926 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-mutex_drivers-net-ethernet-sun-cassini.cil.i[445353,445366] [2021-11-03 00:10:18,926 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-mutex_drivers-net-ethernet-sun-cassini.cil.i[445518,445531] [2021-11-03 00:10:18,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 00:10:19,101 INFO L208 MainTranslator]: Completed translation [2021-11-03 00:10:19,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:10:19 WrapperNode [2021-11-03 00:10:19,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 00:10:19,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 00:10:19,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 00:10:19,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 00:10:19,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:10:19" (1/1) ... [2021-11-03 00:10:19,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:10:19" (1/1) ... [2021-11-03 00:10:21,598 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 00:10:21,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 00:10:21,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 00:10:21,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 00:10:21,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:10:19" (1/1) ... [2021-11-03 00:10:21,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:10:19" (1/1) ... [2021-11-03 00:10:22,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:10:19" (1/1) ... [2021-11-03 00:10:22,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:10:19" (1/1) ... [2021-11-03 00:10:23,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:10:19" (1/1) ... [2021-11-03 00:10:23,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:10:19" (1/1) ... [2021-11-03 00:10:23,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:10:19" (1/1) ... [2021-11-03 00:10:24,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 00:10:24,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 00:10:24,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 00:10:24,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 00:10:24,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:10:19" (1/1) ... [2021-11-03 00:10:24,248 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 00:10:24,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 00:10:24,283 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) [2021-11-03 00:10:24,300 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 [2021-11-03 00:10:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 00:10:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-03 00:10:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-03 00:10:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 00:10:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 00:10:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 00:10:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-03 00:10:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 00:10:24,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 00:10:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 00:10:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 00:10:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 00:10:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 00:10:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 00:10:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 00:10:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 00:15:39,953 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-03 00:15:39,953 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-03 00:15:39,954 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-03 00:15:39,954 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-03 00:15:39,955 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 00:15:39,956 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-03 00:15:40,011 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 00:15:40,012 INFO L299 CfgBuilder]: Removed 22558 assume(true) statements. [2021-11-03 00:15:40,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:15:40 BoogieIcfgContainer [2021-11-03 00:15:40,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 00:15:40,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 00:15:40,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 00:15:40,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 00:15:40,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:10:15" (1/3) ... [2021-11-03 00:15:40,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c42f37d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:15:40, skipping insertion in model container [2021-11-03 00:15:40,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:10:19" (2/3) ... [2021-11-03 00:15:40,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c42f37d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:15:40, skipping insertion in model container [2021-11-03 00:15:40,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:15:40" (3/3) ... [2021-11-03 00:15:40,035 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i [2021-11-03 00:15:40,040 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 00:15:40,040 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-11-03 00:15:40,135 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 00:15:40,149 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 [2021-11-03 00:15:40,149 INFO L340 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2021-11-03 00:15:40,341 INFO L276 IsEmpty]: Start isEmpty. Operand has 19678 states, 19644 states have (on average 1.313021787823254) internal successors, (25793), 19677 states have internal predecessors, (25793), 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) [2021-11-03 00:15:40,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-03 00:15:40,353 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:15:40,353 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] [2021-11-03 00:15:40,354 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-03 00:15:40,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:15:40,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1947774779, now seen corresponding path program 1 times [2021-11-03 00:15:40,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:15:40,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855119011] [2021-11-03 00:15:40,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:15:40,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:15:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:15:41,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:15:41,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:15:41,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855119011] [2021-11-03 00:15:41,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855119011] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:15:41,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:15:41,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:15:41,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292294613] [2021-11-03 00:15:41,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:15:41,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:15:41,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:15:41,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:15:41,165 INFO L87 Difference]: Start difference. First operand has 19678 states, 19644 states have (on average 1.313021787823254) internal successors, (25793), 19677 states have internal predecessors, (25793), 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) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-11-03 00:15:43,267 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:15:47,206 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:16:10,707 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:17:30,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:17:30,249 INFO L93 Difference]: Finished difference Result 58108 states and 75884 transitions. [2021-11-03 00:17:30,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:17:30,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2021-11-03 00:17:30,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:17:30,375 INFO L225 Difference]: With dead ends: 58108 [2021-11-03 00:17:30,375 INFO L226 Difference]: Without dead ends: 37925 [2021-11-03 00:17:30,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.70ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:17:30,419 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 24750 mSDsluCounter, 24930 mSDsCounter, 0 mSdLazyCounter, 49265 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94511.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24750 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 49270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 137.30ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49265 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 106529.76ms IncrementalHoareTripleChecker+Time [2021-11-03 00:17:30,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24750 Valid, 647 Invalid, 49270 Unknown, 0 Unchecked, 137.30ms Time], IncrementalHoareTripleChecker [3 Valid, 49265 Invalid, 2 Unknown, 0 Unchecked, 106529.76ms Time] [2021-11-03 00:17:30,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37925 states. [2021-11-03 00:17:31,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37925 to 37833. [2021-11-03 00:17:31,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37833 states, 37799 states have (on average 1.2799809518770338) internal successors, (48382), 37832 states have internal predecessors, (48382), 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) [2021-11-03 00:17:31,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37833 states to 37833 states and 48382 transitions. [2021-11-03 00:17:31,233 INFO L78 Accepts]: Start accepts. Automaton has 37833 states and 48382 transitions. Word has length 51 [2021-11-03 00:17:31,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:17:31,233 INFO L470 AbstractCegarLoop]: Abstraction has 37833 states and 48382 transitions. [2021-11-03 00:17:31,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-11-03 00:17:31,235 INFO L276 IsEmpty]: Start isEmpty. Operand 37833 states and 48382 transitions. [2021-11-03 00:17:31,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-03 00:17:31,243 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:17:31,243 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] [2021-11-03 00:17:31,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 00:17:31,243 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-03 00:17:31,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:17:31,245 INFO L85 PathProgramCache]: Analyzing trace with hash -841760609, now seen corresponding path program 1 times [2021-11-03 00:17:31,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:17:31,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61461052] [2021-11-03 00:17:31,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:17:31,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:17:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:17:31,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:17:31,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:17:31,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61461052] [2021-11-03 00:17:31,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61461052] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:17:31,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:17:31,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:17:31,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185395948] [2021-11-03 00:17:31,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:17:31,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:17:31,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:17:31,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:17:31,561 INFO L87 Difference]: Start difference. First operand 37833 states and 48382 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 00:17:33,633 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:17:37,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:19:29,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:19:29,176 INFO L93 Difference]: Finished difference Result 67601 states and 86793 transitions. [2021-11-03 00:19:29,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:19:29,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-03 00:19:29,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:19:29,234 INFO L225 Difference]: With dead ends: 67601 [2021-11-03 00:19:29,234 INFO L226 Difference]: Without dead ends: 29868 [2021-11-03 00:19:29,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.36ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:19:29,279 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 7136 mSDsluCounter, 24244 mSDsCounter, 0 mSdLazyCounter, 48615 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 99787.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7136 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 48636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 129.11ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 48615 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 115833.88ms IncrementalHoareTripleChecker+Time [2021-11-03 00:19:29,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7136 Valid, 0 Invalid, 48636 Unknown, 0 Unchecked, 129.11ms Time], IncrementalHoareTripleChecker [19 Valid, 48615 Invalid, 2 Unknown, 0 Unchecked, 115833.88ms Time] [2021-11-03 00:19:29,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29868 states. [2021-11-03 00:19:29,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29868 to 29794. [2021-11-03 00:19:29,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29794 states, 29760 states have (on average 1.2908938172043012) internal successors, (38417), 29793 states have internal predecessors, (38417), 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) [2021-11-03 00:19:29,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29794 states to 29794 states and 38417 transitions. [2021-11-03 00:19:29,791 INFO L78 Accepts]: Start accepts. Automaton has 29794 states and 38417 transitions. Word has length 61 [2021-11-03 00:19:29,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:19:29,791 INFO L470 AbstractCegarLoop]: Abstraction has 29794 states and 38417 transitions. [2021-11-03 00:19:29,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 00:19:29,792 INFO L276 IsEmpty]: Start isEmpty. Operand 29794 states and 38417 transitions. [2021-11-03 00:19:29,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-03 00:19:29,793 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:19:29,793 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] [2021-11-03 00:19:29,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 00:19:29,795 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-03 00:19:29,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:19:29,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1817104897, now seen corresponding path program 1 times [2021-11-03 00:19:29,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:19:29,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214800174] [2021-11-03 00:19:29,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:19:29,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:19:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:19:30,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:19:30,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:19:30,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214800174] [2021-11-03 00:19:30,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214800174] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:19:30,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:19:30,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:19:30,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430203617] [2021-11-03 00:19:30,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:19:30,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:19:30,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:19:30,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:19:30,202 INFO L87 Difference]: Start difference. First operand 29794 states and 38417 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2021-11-03 00:19:32,295 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:20:34,043 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:22:02,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:22:02,337 INFO L93 Difference]: Finished difference Result 75330 states and 96928 transitions. [2021-11-03 00:22:02,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:22:02,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2021-11-03 00:22:02,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:22:02,413 INFO L225 Difference]: With dead ends: 75330 [2021-11-03 00:22:02,413 INFO L226 Difference]: Without dead ends: 45636 [2021-11-03 00:22:02,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.36ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:22:02,449 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 20594 mSDsluCounter, 23859 mSDsCounter, 0 mSdLazyCounter, 48254 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 125019.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20594 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 48265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 123.57ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 48254 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 149839.65ms IncrementalHoareTripleChecker+Time [2021-11-03 00:22:02,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20594 Valid, 0 Invalid, 48265 Unknown, 0 Unchecked, 123.57ms Time], IncrementalHoareTripleChecker [9 Valid, 48254 Invalid, 2 Unknown, 0 Unchecked, 149839.65ms Time] [2021-11-03 00:22:02,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45636 states. [2021-11-03 00:22:02,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45636 to 43676. [2021-11-03 00:22:02,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43676 states, 43642 states have (on average 1.287567022592915) internal successors, (56192), 43675 states have internal predecessors, (56192), 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) [2021-11-03 00:22:03,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43676 states to 43676 states and 56192 transitions. [2021-11-03 00:22:03,237 INFO L78 Accepts]: Start accepts. Automaton has 43676 states and 56192 transitions. Word has length 66 [2021-11-03 00:22:03,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:22:03,239 INFO L470 AbstractCegarLoop]: Abstraction has 43676 states and 56192 transitions. [2021-11-03 00:22:03,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2021-11-03 00:22:03,239 INFO L276 IsEmpty]: Start isEmpty. Operand 43676 states and 56192 transitions. [2021-11-03 00:22:03,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-03 00:22:03,241 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:22:03,241 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:22:03,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 00:22:03,242 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-03 00:22:03,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:22:03,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1385227923, now seen corresponding path program 1 times [2021-11-03 00:22:03,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:22:03,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800881036] [2021-11-03 00:22:03,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:22:03,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:22:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:22:03,542 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:22:03,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:22:03,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800881036] [2021-11-03 00:22:03,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800881036] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:22:03,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:22:03,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:22:03,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961459293] [2021-11-03 00:22:03,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:22:03,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:22:03,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:22:03,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:22:03,545 INFO L87 Difference]: Start difference. First operand 43676 states and 56192 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-11-03 00:22:05,621 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 [] Killed by 15