./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-chelsio-cxgb4vf-cxgb4vf.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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-chelsio-cxgb4vf-cxgb4vf.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 92fce7e8733fef6ba8e1d7d5b12f8bb98a90f9164efa69e5285fd66b003407a0 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 12:29:53,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 12:29:53,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 12:29:53,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 12:29:53,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 12:29:53,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 12:29:53,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 12:29:53,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 12:29:53,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 12:29:53,316 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 12:29:53,317 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 12:29:53,318 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 12:29:53,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 12:29:53,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 12:29:53,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 12:29:53,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 12:29:53,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 12:29:53,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 12:29:53,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 12:29:53,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 12:29:53,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 12:29:53,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 12:29:53,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 12:29:53,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 12:29:53,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 12:29:53,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 12:29:53,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 12:29:53,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 12:29:53,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 12:29:53,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 12:29:53,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 12:29:53,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 12:29:53,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 12:29:53,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 12:29:53,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 12:29:53,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 12:29:53,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 12:29:53,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 12:29:53,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 12:29:53,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 12:29:53,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 12:29:53,355 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 12:29:53,384 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 12:29:53,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 12:29:53,385 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 12:29:53,385 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 12:29:53,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 12:29:53,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 12:29:53,387 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 12:29:53,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 12:29:53,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 12:29:53,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 12:29:53,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 12:29:53,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 12:29:53,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 12:29:53,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 12:29:53,389 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 12:29:53,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 12:29:53,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 12:29:53,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 12:29:53,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 12:29:53,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 12:29:53,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 12:29:53,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 12:29:53,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 12:29:53,391 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 12:29:53,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 12:29:53,391 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 12:29:53,391 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 12:29:53,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 12:29:53,393 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 12:29:53,393 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92fce7e8733fef6ba8e1d7d5b12f8bb98a90f9164efa69e5285fd66b003407a0 [2021-11-04 12:29:53,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 12:29:53,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 12:29:53,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 12:29:53,630 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 12:29:53,631 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 12:29:53,632 INFO L432 ainManager$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-chelsio-cxgb4vf-cxgb4vf.cil.i [2021-11-04 12:29:53,682 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f24d6a3b0/a9b7b6e99db24be292bc96c355bc93fb/FLAG97d6297ea [2021-11-04 12:29:54,508 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 12:29:54,509 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-chelsio-cxgb4vf-cxgb4vf.cil.i [2021-11-04 12:29:54,576 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f24d6a3b0/a9b7b6e99db24be292bc96c355bc93fb/FLAG97d6297ea [2021-11-04 12:29:54,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f24d6a3b0/a9b7b6e99db24be292bc96c355bc93fb [2021-11-04 12:29:54,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 12:29:54,717 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 12:29:54,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 12:29:54,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 12:29:54,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 12:29:54,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 12:29:54" (1/1) ... [2021-11-04 12:29:54,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ba88a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:29:54, skipping insertion in model container [2021-11-04 12:29:54,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 12:29:54" (1/1) ... [2021-11-04 12:29:54,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 12:29:54,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 12:30:00,293 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-chelsio-cxgb4vf-cxgb4vf.cil.i[622479,622492] [2021-11-04 12:30:00,295 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-chelsio-cxgb4vf-cxgb4vf.cil.i[622648,622661] [2021-11-04 12:30:00,296 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-chelsio-cxgb4vf-cxgb4vf.cil.i[622815,622828] [2021-11-04 12:30:00,296 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-chelsio-cxgb4vf-cxgb4vf.cil.i[622983,622996] [2021-11-04 12:30:00,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 12:30:00,406 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 12:30:00,942 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-chelsio-cxgb4vf-cxgb4vf.cil.i[622479,622492] [2021-11-04 12:30:00,943 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-chelsio-cxgb4vf-cxgb4vf.cil.i[622648,622661] [2021-11-04 12:30:00,943 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-chelsio-cxgb4vf-cxgb4vf.cil.i[622815,622828] [2021-11-04 12:30:00,943 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-chelsio-cxgb4vf-cxgb4vf.cil.i[622983,622996] [2021-11-04 12:30:00,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 12:30:01,293 INFO L208 MainTranslator]: Completed translation [2021-11-04 12:30:01,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:30:01 WrapperNode [2021-11-04 12:30:01,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 12:30:01,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 12:30:01,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 12:30:01,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 12:30:01,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:30:01" (1/1) ... [2021-11-04 12:30:01,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:30:01" (1/1) ... [2021-11-04 12:30:05,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 12:30:05,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 12:30:05,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 12:30:05,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 12:30:05,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:30:01" (1/1) ... [2021-11-04 12:30:05,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:30:01" (1/1) ... [2021-11-04 12:30:06,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:30:01" (1/1) ... [2021-11-04 12:30:06,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:30:01" (1/1) ... [2021-11-04 12:30:08,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:30:01" (1/1) ... [2021-11-04 12:30:08,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:30:01" (1/1) ... [2021-11-04 12:30:08,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:30:01" (1/1) ... [2021-11-04 12:30:09,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 12:30:09,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 12:30:09,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 12:30:09,506 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 12:30:09,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:30:01" (1/1) ... [2021-11-04 12:30:09,513 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 12:30:09,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 12:30:09,535 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) [2021-11-04 12:30:09,537 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 [2021-11-04 12:30:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 12:30:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 12:30:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 12:30:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 12:30:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 12:30:09,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 12:30:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 12:30:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-04 12:30:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 12:30:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 12:30:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 12:30:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 12:30:09,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 12:30:09,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 12:30:09,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 12:30:09,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 12:30:09,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 12:30:34,988 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-04 12:30:34,989 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-04 12:30:34,989 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-04 12:30:34,989 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 12:30:34,990 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-04 12:30:34,990 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-04 12:30:34,990 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2021-11-04 12:30:34,990 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2021-11-04 12:30:34,990 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 12:30:34,991 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res := 0; [2021-11-04 12:30:34,991 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res := 0; [2021-11-04 12:30:34,991 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res := 0; [2021-11-04 12:30:34,991 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#3: ldv_switch_3_#res := 0; [2021-11-04 12:30:34,993 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-04 12:30:34,994 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 12:30:34,994 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 12:30:35,000 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-04 12:30:35,073 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 12:30:35,075 INFO L299 CfgBuilder]: Removed 28701 assume(true) statements. [2021-11-04 12:30:35,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 12:30:35 BoogieIcfgContainer [2021-11-04 12:30:35,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 12:30:35,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 12:30:35,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 12:30:35,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 12:30:35,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 12:29:54" (1/3) ... [2021-11-04 12:30:35,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aec5a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 12:30:35, skipping insertion in model container [2021-11-04 12:30:35,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:30:01" (2/3) ... [2021-11-04 12:30:35,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aec5a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 12:30:35, skipping insertion in model container [2021-11-04 12:30:35,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 12:30:35" (3/3) ... [2021-11-04 12:30:35,103 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i [2021-11-04 12:30:35,107 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 12:30:35,108 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2021-11-04 12:30:35,209 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 12:30:35,217 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 [2021-11-04 12:30:35,217 INFO L340 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2021-11-04 12:30:35,468 INFO L276 IsEmpty]: Start isEmpty. Operand has 22956 states, 22900 states have (on average 1.265458515283843) internal successors, (28979), 22955 states have internal predecessors, (28979), 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) [2021-11-04 12:30:35,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-04 12:30:35,492 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 12:30:35,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 12:30:35,494 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-04 12:30:35,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 12:30:35,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1426199353, now seen corresponding path program 1 times [2021-11-04 12:30:35,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 12:30:35,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973109740] [2021-11-04 12:30:35,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 12:30:35,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 12:30:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 12:30:36,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 12:30:36,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 12:30:36,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973109740] [2021-11-04 12:30:36,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973109740] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 12:30:36,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 12:30:36,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 12:30:36,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772233084] [2021-11-04 12:30:36,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 12:30:36,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 12:30:36,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 12:30:36,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 12:30:36,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:30:37,013 INFO L87 Difference]: Start difference. First operand has 22956 states, 22900 states have (on average 1.265458515283843) internal successors, (28979), 22955 states have internal predecessors, (28979), 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 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2021-11-04 12:30:39,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:31:26,599 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:31:36,305 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 12:31:42,171 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-04 12:31:49,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-04 12:31:56,518 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 12:31:59,814 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-04 12:32:29,393 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:33:09,029 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-04 12:33:37,976 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:33:55,770 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:34:00,658 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:34:04,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:34:11,594 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:34:26,058 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:34:39,465 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:35:23,879 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:35:38,674 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 12:35:54,934 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-04 12:35:59,325 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 12:36:08,776 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-04 12:36:34,555 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:36:39,004 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:37:07,813 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-04 12:37:30,766 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:37:41,753 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:38:28,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 12:38:28,335 INFO L93 Difference]: Finished difference Result 64556 states and 81299 transitions. [2021-11-04 12:38:28,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 12:38:28,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 193 [2021-11-04 12:38:28,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 12:38:28,510 INFO L225 Difference]: With dead ends: 64556 [2021-11-04 12:38:28,510 INFO L226 Difference]: Without dead ends: 41497 [2021-11-04 12:38:28,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.81ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:38:28,581 INFO L933 BasicCegarLoop]: 423 mSDtfsCounter, 24150 mSDsluCounter, 28058 mSDsCounter, 0 mSdLazyCounter, 55392 mSolverCounterSat, 8 mSolverCounterUnsat, 26 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 427480.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24150 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 55426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 409.41ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 55392 IncrementalHoareTripleChecker+Invalid, 26 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 465612.26ms IncrementalHoareTripleChecker+Time [2021-11-04 12:38:28,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24150 Valid, 839 Invalid, 55426 Unknown, 0 Unchecked, 409.41ms Time], IncrementalHoareTripleChecker [8 Valid, 55392 Invalid, 26 Unknown, 0 Unchecked, 465612.26ms Time] [2021-11-04 12:38:28,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41497 states. [2021-11-04 12:38:29,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41497 to 41453. [2021-11-04 12:38:29,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41453 states, 41397 states have (on average 1.2283981931057806) internal successors, (50852), 41452 states have internal predecessors, (50852), 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) [2021-11-04 12:38:29,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41453 states to 41453 states and 50852 transitions. [2021-11-04 12:38:29,826 INFO L78 Accepts]: Start accepts. Automaton has 41453 states and 50852 transitions. Word has length 193 [2021-11-04 12:38:29,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 12:38:29,829 INFO L470 AbstractCegarLoop]: Abstraction has 41453 states and 50852 transitions. [2021-11-04 12:38:29,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2021-11-04 12:38:29,831 INFO L276 IsEmpty]: Start isEmpty. Operand 41453 states and 50852 transitions. [2021-11-04 12:38:29,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-04 12:38:29,839 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 12:38:29,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 12:38:29,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 12:38:29,845 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-04 12:38:29,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 12:38:29,847 INFO L85 PathProgramCache]: Analyzing trace with hash -2083684996, now seen corresponding path program 1 times [2021-11-04 12:38:29,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 12:38:29,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322153876] [2021-11-04 12:38:29,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 12:38:29,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 12:38:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 12:38:30,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 12:38:30,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 12:38:30,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322153876] [2021-11-04 12:38:30,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322153876] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 12:38:30,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 12:38:30,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 12:38:30,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096385254] [2021-11-04 12:38:30,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 12:38:30,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 12:38:30,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 12:38:30,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 12:38:30,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:38:30,479 INFO L87 Difference]: Start difference. First operand 41453 states and 50852 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2021-11-04 12:38:32,690 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:38:54,168 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-04 12:38:57,123 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-04 12:39:16,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:39:24,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 12:39:32,671 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-04 12:39:40,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 12:40:09,442 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:40:15,565 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:40:34,609 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:41:05,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-04 12:41:43,956 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:42:07,998 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:42:11,480 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:42:33,430 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:42:48,097 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:43:36,891 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15