./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-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 ce7b7e06b36a72b3de911fb70c1b245fd97c856ddcef7fa1f63b6ddc09812498 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 19:18:25,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 19:18:25,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 19:18:25,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 19:18:25,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 19:18:25,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 19:18:25,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 19:18:25,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 19:18:25,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 19:18:25,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 19:18:25,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 19:18:25,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 19:18:25,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 19:18:25,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 19:18:25,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 19:18:25,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 19:18:25,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 19:18:25,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 19:18:25,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 19:18:25,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 19:18:25,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 19:18:25,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 19:18:25,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 19:18:25,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 19:18:25,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 19:18:25,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 19:18:25,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 19:18:25,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 19:18:25,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 19:18:25,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 19:18:25,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 19:18:25,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 19:18:25,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 19:18:25,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 19:18:25,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 19:18:25,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 19:18:25,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 19:18:25,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 19:18:25,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 19:18:25,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 19:18:25,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 19:18:25,693 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 19:18:25,711 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 19:18:25,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 19:18:25,714 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 19:18:25,714 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 19:18:25,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 19:18:25,716 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 19:18:25,716 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 19:18:25,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 19:18:25,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 19:18:25,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 19:18:25,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 19:18:25,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 19:18:25,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 19:18:25,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 19:18:25,717 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 19:18:25,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 19:18:25,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 19:18:25,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 19:18:25,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 19:18:25,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 19:18:25,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 19:18:25,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 19:18:25,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 19:18:25,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 19:18:25,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 19:18:25,719 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 19:18:25,719 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 19:18:25,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 19:18:25,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 19:18:25,720 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce7b7e06b36a72b3de911fb70c1b245fd97c856ddcef7fa1f63b6ddc09812498 [2021-11-07 19:18:25,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 19:18:25,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 19:18:25,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 19:18:25,943 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 19:18:25,943 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 19:18:25,945 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-07 19:18:25,992 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cf562e67/70c4577292dd44008eeb95985c00c26b/FLAGed7f38dc8 [2021-11-07 19:18:26,733 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 19:18:26,733 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-07 19:18:26,779 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cf562e67/70c4577292dd44008eeb95985c00c26b/FLAGed7f38dc8 [2021-11-07 19:18:27,029 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cf562e67/70c4577292dd44008eeb95985c00c26b [2021-11-07 19:18:27,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 19:18:27,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 19:18:27,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 19:18:27,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 19:18:27,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 19:18:27,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:18:27" (1/1) ... [2021-11-07 19:18:27,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a949eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:27, skipping insertion in model container [2021-11-07 19:18:27,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:18:27" (1/1) ... [2021-11-07 19:18:27,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 19:18:27,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 19:18:30,825 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493165,493178] [2021-11-07 19:18:30,828 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493334,493347] [2021-11-07 19:18:30,832 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493501,493514] [2021-11-07 19:18:30,832 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493669,493682] [2021-11-07 19:18:30,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 19:18:30,888 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 19:18:31,215 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493165,493178] [2021-11-07 19:18:31,216 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493334,493347] [2021-11-07 19:18:31,216 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493501,493514] [2021-11-07 19:18:31,216 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493669,493682] [2021-11-07 19:18:31,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 19:18:31,493 INFO L208 MainTranslator]: Completed translation [2021-11-07 19:18:31,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:31 WrapperNode [2021-11-07 19:18:31,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 19:18:31,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 19:18:31,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 19:18:31,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 19:18:31,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:31" (1/1) ... [2021-11-07 19:18:31,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:31" (1/1) ... [2021-11-07 19:18:34,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 19:18:34,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 19:18:34,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 19:18:34,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 19:18:34,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:31" (1/1) ... [2021-11-07 19:18:34,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:31" (1/1) ... [2021-11-07 19:18:34,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:31" (1/1) ... [2021-11-07 19:18:34,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:31" (1/1) ... [2021-11-07 19:18:35,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:31" (1/1) ... [2021-11-07 19:18:36,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:31" (1/1) ... [2021-11-07 19:18:36,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:31" (1/1) ... [2021-11-07 19:18:37,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 19:18:37,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 19:18:37,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 19:18:37,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 19:18:37,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:31" (1/1) ... [2021-11-07 19:18:37,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 19:18:37,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 19:18:37,065 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) [2021-11-07 19:18:37,073 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 [2021-11-07 19:18:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 19:18:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 19:18:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 19:18:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 19:18:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 19:18:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 19:18:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 19:18:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 19:18:37,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 19:18:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 19:18:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 19:18:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 19:18:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 19:18:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 19:18:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 19:18:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 19:25:34,938 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 19:25:34,939 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-07 19:25:34,939 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 19:25:34,939 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 19:25:34,940 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 19:25:34,941 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 19:25:35,024 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 19:25:35,025 INFO L299 CfgBuilder]: Removed 28148 assume(true) statements. [2021-11-07 19:25:35,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:25:35 BoogieIcfgContainer [2021-11-07 19:25:35,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 19:25:35,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 19:25:35,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 19:25:35,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 19:25:35,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:18:27" (1/3) ... [2021-11-07 19:25:35,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40020210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:25:35, skipping insertion in model container [2021-11-07 19:25:35,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:18:31" (2/3) ... [2021-11-07 19:25:35,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40020210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:25:35, skipping insertion in model container [2021-11-07 19:25:35,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:25:35" (3/3) ... [2021-11-07 19:25:35,051 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-07 19:25:35,055 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 19:25:35,055 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 750 error locations. [2021-11-07 19:25:35,162 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 19:25:35,168 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 [2021-11-07 19:25:35,168 INFO L340 AbstractCegarLoop]: Starting to check reachability of 750 error locations. [2021-11-07 19:25:35,444 INFO L276 IsEmpty]: Start isEmpty. Operand has 25356 states, 24606 states have (on average 1.3370316183044786) internal successors, (32899), 25355 states have internal predecessors, (32899), 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) [2021-11-07 19:25:35,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 19:25:35,455 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:25:35,456 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] [2021-11-07 19:25:35,456 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 747 more)] === [2021-11-07 19:25:35,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:25:35,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1804629029, now seen corresponding path program 1 times [2021-11-07 19:25:35,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:25:35,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478785772] [2021-11-07 19:25:35,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:25:35,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:25:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:25:36,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:25:36,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:25:36,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478785772] [2021-11-07 19:25:36,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478785772] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:25:36,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:25:36,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:25:36,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576411202] [2021-11-07 19:25:36,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:25:36,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:25:36,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:25:36,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:25:36,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:25:36,307 INFO L87 Difference]: Start difference. First operand has 25356 states, 24606 states have (on average 1.3370316183044786) internal successors, (32899), 25355 states have internal predecessors, (32899), 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) [2021-11-07 19:25:38,412 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 [] [2021-11-07 19:25:40,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:25:40,137 INFO L93 Difference]: Finished difference Result 75026 states and 97057 transitions. [2021-11-07 19:25:40,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:25:40,140 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 [2021-11-07 19:25:40,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:25:40,320 INFO L225 Difference]: With dead ends: 75026 [2021-11-07 19:25:40,320 INFO L226 Difference]: Without dead ends: 47741 [2021-11-07 19:25:40,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.75ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:25:40,385 INFO L933 BasicCegarLoop]: 31364 mSDtfsCounter, 31025 mSDsluCounter, 31321 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2137.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31025 SdHoareTripleChecker+Valid, 62685 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 121.89ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2282.11ms IncrementalHoareTripleChecker+Time [2021-11-07 19:25:40,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31025 Valid, 62685 Invalid, 14 Unknown, 0 Unchecked, 121.89ms Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2282.11ms Time] [2021-11-07 19:25:40,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47741 states. [2021-11-07 19:25:41,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47741 to 46317. [2021-11-07 19:25:41,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46317 states, 45567 states have (on average 1.2630851273948251) internal successors, (57555), 46316 states have internal predecessors, (57555), 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) [2021-11-07 19:25:41,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46317 states to 46317 states and 57555 transitions. [2021-11-07 19:25:41,636 INFO L78 Accepts]: Start accepts. Automaton has 46317 states and 57555 transitions. Word has length 51 [2021-11-07 19:25:41,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:25:41,636 INFO L470 AbstractCegarLoop]: Abstraction has 46317 states and 57555 transitions. [2021-11-07 19:25:41,637 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) [2021-11-07 19:25:41,637 INFO L276 IsEmpty]: Start isEmpty. Operand 46317 states and 57555 transitions. [2021-11-07 19:25:41,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-07 19:25:41,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:25:41,639 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] [2021-11-07 19:25:41,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 19:25:41,640 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 747 more)] === [2021-11-07 19:25:41,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:25:41,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1758238275, now seen corresponding path program 1 times [2021-11-07 19:25:41,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:25:41,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419798775] [2021-11-07 19:25:41,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:25:41,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:25:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:25:42,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:25:42,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:25:42,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419798775] [2021-11-07 19:25:42,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419798775] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:25:42,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:25:42,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:25:42,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35513341] [2021-11-07 19:25:42,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:25:42,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:25:42,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:25:42,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:25:42,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:25:42,162 INFO L87 Difference]: Start difference. First operand 46317 states and 57555 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-11-07 19:25:44,246 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:25:46,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:25:46,536 INFO L93 Difference]: Finished difference Result 132075 states and 164201 transitions. [2021-11-07 19:25:46,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:25:46,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2021-11-07 19:25:46,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:25:46,766 INFO L225 Difference]: With dead ends: 132075 [2021-11-07 19:25:46,766 INFO L226 Difference]: Without dead ends: 85858 [2021-11-07 19:25:46,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:25:46,876 INFO L933 BasicCegarLoop]: 29273 mSDtfsCounter, 25906 mSDsluCounter, 28321 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2211.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25906 SdHoareTripleChecker+Valid, 57594 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 74.36ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2412.21ms IncrementalHoareTripleChecker+Time [2021-11-07 19:25:46,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25906 Valid, 57594 Invalid, 44 Unknown, 0 Unchecked, 74.36ms Time], IncrementalHoareTripleChecker [12 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 2412.21ms Time] [2021-11-07 19:25:47,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85858 states. [2021-11-07 19:25:48,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85858 to 78896. [2021-11-07 19:25:48,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78896 states, 78146 states have (on average 1.2662964195224324) internal successors, (98956), 78895 states have internal predecessors, (98956), 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) [2021-11-07 19:25:48,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78896 states to 78896 states and 98956 transitions. [2021-11-07 19:25:48,738 INFO L78 Accepts]: Start accepts. Automaton has 78896 states and 98956 transitions. Word has length 56 [2021-11-07 19:25:48,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:25:48,739 INFO L470 AbstractCegarLoop]: Abstraction has 78896 states and 98956 transitions. [2021-11-07 19:25:48,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-11-07 19:25:48,739 INFO L276 IsEmpty]: Start isEmpty. Operand 78896 states and 98956 transitions. [2021-11-07 19:25:48,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 19:25:48,744 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:25:48,744 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] [2021-11-07 19:25:48,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 19:25:48,744 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr156ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 747 more)] === [2021-11-07 19:25:48,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:25:48,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1593794201, now seen corresponding path program 1 times [2021-11-07 19:25:48,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:25:48,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676236073] [2021-11-07 19:25:48,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:25:48,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:25:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:25:49,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:25:49,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:25:49,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676236073] [2021-11-07 19:25:49,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676236073] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:25:49,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:25:49,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:25:49,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778357672] [2021-11-07 19:25:49,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:25:49,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:25:49,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:25:49,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:25:49,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:25:49,300 INFO L87 Difference]: Start difference. First operand 78896 states and 98956 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-11-07 19:25:51,391 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 [] [2021-11-07 19:25:54,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:25:54,137 INFO L93 Difference]: Finished difference Result 221702 states and 277947 transitions. [2021-11-07 19:25:54,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:25:54,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2021-11-07 19:25:54,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:25:54,770 INFO L225 Difference]: With dead ends: 221702 [2021-11-07 19:25:54,770 INFO L226 Difference]: Without dead ends: 142906 [2021-11-07 19:25:54,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.75ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:25:54,931 INFO L933 BasicCegarLoop]: 29275 mSDtfsCounter, 24593 mSDsluCounter, 28760 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2370.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24593 SdHoareTripleChecker+Valid, 58035 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.57ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2568.64ms IncrementalHoareTripleChecker+Time [2021-11-07 19:25:54,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24593 Valid, 58035 Invalid, 98 Unknown, 0 Unchecked, 45.57ms Time], IncrementalHoareTripleChecker [9 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 2568.64ms Time] [2021-11-07 19:25:55,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142906 states. [2021-11-07 19:25:57,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142906 to 137322. [2021-11-07 19:25:58,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137322 states, 136572 states have (on average 1.266731101543508) internal successors, (173000), 137321 states have internal predecessors, (173000), 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) [2021-11-07 19:25:58,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137322 states to 137322 states and 173000 transitions. [2021-11-07 19:25:58,628 INFO L78 Accepts]: Start accepts. Automaton has 137322 states and 173000 transitions. Word has length 59 [2021-11-07 19:25:58,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:25:58,637 INFO L470 AbstractCegarLoop]: Abstraction has 137322 states and 173000 transitions. [2021-11-07 19:25:58,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-11-07 19:25:58,637 INFO L276 IsEmpty]: Start isEmpty. Operand 137322 states and 173000 transitions. [2021-11-07 19:25:58,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 19:25:58,638 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:25:58,638 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] [2021-11-07 19:25:58,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 19:25:58,638 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr728ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 747 more)] === [2021-11-07 19:25:58,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:25:58,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1780408792, now seen corresponding path program 1 times [2021-11-07 19:25:58,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:25:58,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593061068] [2021-11-07 19:25:58,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:25:58,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:25:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:25:59,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:25:59,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:25:59,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593061068] [2021-11-07 19:25:59,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593061068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:25:59,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:25:59,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:25:59,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262935335] [2021-11-07 19:25:59,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:25:59,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:25:59,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:25:59,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:25:59,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:25:59,020 INFO L87 Difference]: Start difference. First operand 137322 states and 173000 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-11-07 19:26:01,104 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []