./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 fcb8e130 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-dev-fcb8e13 [2021-11-23 04:03:33,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 04:03:33,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 04:03:33,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 04:03:33,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 04:03:33,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 04:03:33,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 04:03:33,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 04:03:33,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 04:03:33,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 04:03:33,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 04:03:33,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 04:03:33,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 04:03:33,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 04:03:33,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 04:03:33,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 04:03:33,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 04:03:33,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 04:03:33,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 04:03:33,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 04:03:33,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 04:03:33,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 04:03:33,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 04:03:33,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 04:03:33,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 04:03:33,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 04:03:33,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 04:03:33,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 04:03:33,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 04:03:33,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 04:03:33,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 04:03:33,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 04:03:33,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 04:03:33,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 04:03:33,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 04:03:33,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 04:03:33,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 04:03:33,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 04:03:33,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 04:03:33,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 04:03:33,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 04:03:33,192 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 04:03:33,224 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 04:03:33,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 04:03:33,224 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 04:03:33,224 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 04:03:33,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 04:03:33,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 04:03:33,226 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 04:03:33,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 04:03:33,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 04:03:33,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 04:03:33,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 04:03:33,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 04:03:33,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 04:03:33,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 04:03:33,228 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 04:03:33,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 04:03:33,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 04:03:33,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 04:03:33,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 04:03:33,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 04:03:33,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 04:03:33,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 04:03:33,230 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 04:03:33,230 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 04:03:33,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 04:03:33,230 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 04:03:33,231 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 04:03:33,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 04:03:33,231 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 04:03:33,231 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce7b7e06b36a72b3de911fb70c1b245fd97c856ddcef7fa1f63b6ddc09812498 [2021-11-23 04:03:33,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 04:03:33,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 04:03:33,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 04:03:33,513 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 04:03:33,513 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 04:03:33,515 INFO L432 ainManager$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 [2021-11-23 04:03:33,581 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/865b91278/582b639ac6d84f85961a01523ef2e3a5/FLAGe25a0c578 [2021-11-23 04:03:34,417 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 04:03:34,418 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 [2021-11-23 04:03:34,476 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/865b91278/582b639ac6d84f85961a01523ef2e3a5/FLAGe25a0c578 [2021-11-23 04:03:34,571 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/865b91278/582b639ac6d84f85961a01523ef2e3a5 [2021-11-23 04:03:34,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 04:03:34,575 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 04:03:34,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 04:03:34,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 04:03:34,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 04:03:34,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:03:34" (1/1) ... [2021-11-23 04:03:34,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c6aaeb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:34, skipping insertion in model container [2021-11-23 04:03:34,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:03:34" (1/1) ... [2021-11-23 04:03:34,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 04:03:34,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 04:03:40,562 WARN L230 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] [2021-11-23 04:03:40,565 WARN L230 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] [2021-11-23 04:03:40,567 WARN L230 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] [2021-11-23 04:03:40,567 WARN L230 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] [2021-11-23 04:03:40,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 04:03:40,655 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 04:03:41,047 WARN L230 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] [2021-11-23 04:03:41,048 WARN L230 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] [2021-11-23 04:03:41,049 WARN L230 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] [2021-11-23 04:03:41,049 WARN L230 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] [2021-11-23 04:03:41,059 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 04:03:41,328 INFO L208 MainTranslator]: Completed translation [2021-11-23 04:03:41,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:41 WrapperNode [2021-11-23 04:03:41,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 04:03:41,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 04:03:41,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 04:03:41,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 04:03:41,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:41" (1/1) ... [2021-11-23 04:03:41,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:41" (1/1) ... [2021-11-23 04:03:44,486 INFO L137 Inliner]: procedures = 688, calls = 4234, calls flagged for inlining = 1694, calls inlined = 14053, statements flattened = 126471 [2021-11-23 04:03:44,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 04:03:44,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 04:03:44,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 04:03:44,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 04:03:44,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:41" (1/1) ... [2021-11-23 04:03:44,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:41" (1/1) ... [2021-11-23 04:03:45,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:41" (1/1) ... [2021-11-23 04:03:45,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:41" (1/1) ... [2021-11-23 04:03:47,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:41" (1/1) ... [2021-11-23 04:03:47,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:41" (1/1) ... [2021-11-23 04:03:47,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:41" (1/1) ... [2021-11-23 04:03:48,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 04:03:48,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 04:03:48,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 04:03:48,488 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 04:03:48,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:41" (1/1) ... [2021-11-23 04:03:48,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 04:03:48,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 04:03:48,536 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) [2021-11-23 04:03:48,537 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 [2021-11-23 04:03:48,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 04:03:48,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 04:03:48,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 04:03:48,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 04:03:48,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 04:03:48,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 04:03:48,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 04:03:48,566 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 04:03:48,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 04:03:48,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 04:03:48,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 04:03:48,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 04:03:48,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 04:03:48,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 04:03:48,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 04:03:48,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 04:03:48,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 04:03:49,657 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 04:03:49,659 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 04:08:50,781 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-23 04:08:50,782 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res#1 := 0; [2021-11-23 04:08:50,782 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-23 04:08:50,783 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-23 04:08:50,783 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-23 04:08:50,784 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 04:08:50,795 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 04:08:50,981 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 04:08:50,981 INFO L301 CfgBuilder]: Removed 46 assume(true) statements. [2021-11-23 04:08:51,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:08:51 BoogieIcfgContainer [2021-11-23 04:08:51,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 04:08:51,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 04:08:51,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 04:08:51,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 04:08:51,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:03:34" (1/3) ... [2021-11-23 04:08:51,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e91ccbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:08:51, skipping insertion in model container [2021-11-23 04:08:51,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:41" (2/3) ... [2021-11-23 04:08:51,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e91ccbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:08:51, skipping insertion in model container [2021-11-23 04:08:51,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:08:51" (3/3) ... [2021-11-23 04:08:51,015 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-23 04:08:51,019 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 04:08:51,019 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 750 error locations. [2021-11-23 04:08:51,138 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 04:08:51,143 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 [2021-11-23 04:08:51,143 INFO L340 AbstractCegarLoop]: Starting to check reachability of 750 error locations. [2021-11-23 04:08:51,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 27635 states, 26885 states have (on average 1.3084619676399478) internal successors, (35178), 27634 states have internal predecessors, (35178), 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) [2021-11-23 04:08:51,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-23 04:08:51,469 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:08:51,470 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] [2021-11-23 04:08:51,471 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)] === [2021-11-23 04:08:51,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:08:51,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1691383418, now seen corresponding path program 1 times [2021-11-23 04:08:51,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:08:51,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315785911] [2021-11-23 04:08:51,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:08:51,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:08:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:08:52,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:08:52,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:08:52,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315785911] [2021-11-23 04:08:52,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315785911] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:08:52,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:08:52,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:08:52,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252249561] [2021-11-23 04:08:52,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:08:52,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:08:52,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:08:52,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:08:52,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:08:52,628 INFO L87 Difference]: Start difference. First operand has 27635 states, 26885 states have (on average 1.3084619676399478) internal successors, (35178), 27634 states have internal predecessors, (35178), 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 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-11-23 04:08:54,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:08:56,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:08:56,840 INFO L93 Difference]: Finished difference Result 81822 states and 103853 transitions. [2021-11-23 04:08:56,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:08:56,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2021-11-23 04:08:56,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:08:57,068 INFO L225 Difference]: With dead ends: 81822 [2021-11-23 04:08:57,069 INFO L226 Difference]: Without dead ends: 52243 [2021-11-23 04:08:57,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:08:57,160 INFO L933 BasicCegarLoop]: 33629 mSDtfsCounter, 33279 mSDsluCounter, 33585 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33279 SdHoareTripleChecker+Valid, 67214 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-23 04:08:57,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33279 Valid, 67214 Invalid, 14 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-23 04:08:57,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52243 states. [2021-11-23 04:08:58,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52243 to 50819. [2021-11-23 04:08:58,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50819 states, 50069 states have (on average 1.2394295871697059) internal successors, (62057), 50818 states have internal predecessors, (62057), 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) [2021-11-23 04:08:59,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50819 states to 50819 states and 62057 transitions. [2021-11-23 04:08:59,087 INFO L78 Accepts]: Start accepts. Automaton has 50819 states and 62057 transitions. Word has length 52 [2021-11-23 04:08:59,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:08:59,089 INFO L470 AbstractCegarLoop]: Abstraction has 50819 states and 62057 transitions. [2021-11-23 04:08:59,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-11-23 04:08:59,091 INFO L276 IsEmpty]: Start isEmpty. Operand 50819 states and 62057 transitions. [2021-11-23 04:08:59,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-23 04:08:59,099 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:08:59,099 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] [2021-11-23 04:08:59,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 04:08:59,100 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)] === [2021-11-23 04:08:59,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:08:59,102 INFO L85 PathProgramCache]: Analyzing trace with hash 199603474, now seen corresponding path program 1 times [2021-11-23 04:08:59,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:08:59,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813024225] [2021-11-23 04:08:59,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:08:59,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:08:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:08:59,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:08:59,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:08:59,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813024225] [2021-11-23 04:08:59,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813024225] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:08:59,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:08:59,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:08:59,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870312561] [2021-11-23 04:08:59,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:08:59,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:08:59,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:08:59,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:08:59,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:08:59,698 INFO L87 Difference]: Start difference. First operand 50819 states and 62057 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-11-23 04:09:01,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:09:04,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:09:04,294 INFO L93 Difference]: Finished difference Result 144683 states and 176809 transitions. [2021-11-23 04:09:04,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:09:04,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2021-11-23 04:09:04,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:09:04,617 INFO L225 Difference]: With dead ends: 144683 [2021-11-23 04:09:04,618 INFO L226 Difference]: Without dead ends: 93965 [2021-11-23 04:09:04,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:09:04,929 INFO L933 BasicCegarLoop]: 31528 mSDtfsCounter, 27821 mSDsluCounter, 30467 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27821 SdHoareTripleChecker+Valid, 61995 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-23 04:09:04,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27821 Valid, 61995 Invalid, 44 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [12 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2021-11-23 04:09:05,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93965 states. [2021-11-23 04:09:07,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93965 to 86554. [2021-11-23 04:09:07,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86554 states, 85804 states have (on average 1.2425294858048577) internal successors, (106614), 86553 states have internal predecessors, (106614), 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) [2021-11-23 04:09:07,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86554 states to 86554 states and 106614 transitions. [2021-11-23 04:09:07,542 INFO L78 Accepts]: Start accepts. Automaton has 86554 states and 106614 transitions. Word has length 58 [2021-11-23 04:09:07,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:09:07,542 INFO L470 AbstractCegarLoop]: Abstraction has 86554 states and 106614 transitions. [2021-11-23 04:09:07,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-11-23 04:09:07,543 INFO L276 IsEmpty]: Start isEmpty. Operand 86554 states and 106614 transitions. [2021-11-23 04:09:07,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-23 04:09:07,544 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:09:07,545 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] [2021-11-23 04:09:07,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 04:09:07,545 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)] === [2021-11-23 04:09:07,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:09:07,546 INFO L85 PathProgramCache]: Analyzing trace with hash 314806891, now seen corresponding path program 1 times [2021-11-23 04:09:07,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:09:07,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602508973] [2021-11-23 04:09:07,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:09:07,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:09:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:09:08,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:09:08,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:09:08,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602508973] [2021-11-23 04:09:08,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602508973] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:09:08,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:09:08,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:09:08,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705282930] [2021-11-23 04:09:08,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:09:08,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:09:08,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:09:08,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:09:08,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:09:08,092 INFO L87 Difference]: Start difference. First operand 86554 states and 106614 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-11-23 04:09:10,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:09:13,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:09:13,810 INFO L93 Difference]: Finished difference Result 242862 states and 299107 transitions. [2021-11-23 04:09:13,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:09:13,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2021-11-23 04:09:13,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:09:14,217 INFO L225 Difference]: With dead ends: 242862 [2021-11-23 04:09:14,217 INFO L226 Difference]: Without dead ends: 156409 [2021-11-23 04:09:14,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:09:14,382 INFO L933 BasicCegarLoop]: 31530 mSDtfsCounter, 26423 mSDsluCounter, 30957 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26423 SdHoareTripleChecker+Valid, 62487 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-23 04:09:14,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26423 Valid, 62487 Invalid, 98 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2021-11-23 04:09:14,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156409 states.