./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.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-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.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 bc34b562a518e1962cb00b051353e0f6c91b97d77e3b06d95f31a41553709599 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 10:57:45,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 10:57:45,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 10:57:45,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 10:57:45,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 10:57:45,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 10:57:45,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 10:57:45,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 10:57:45,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 10:57:45,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 10:57:45,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 10:57:45,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 10:57:45,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 10:57:45,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 10:57:45,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 10:57:45,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 10:57:45,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 10:57:45,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 10:57:45,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 10:57:45,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 10:57:45,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 10:57:45,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 10:57:45,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 10:57:45,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 10:57:45,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 10:57:45,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 10:57:45,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 10:57:45,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 10:57:45,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 10:57:45,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 10:57:45,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 10:57:45,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 10:57:45,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 10:57:45,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 10:57:45,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 10:57:45,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 10:57:45,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 10:57:45,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 10:57:45,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 10:57:45,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 10:57:45,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 10:57:45,500 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 10:57:45,524 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 10:57:45,525 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 10:57:45,525 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 10:57:45,525 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 10:57:45,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 10:57:45,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 10:57:45,526 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 10:57:45,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 10:57:45,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 10:57:45,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 10:57:45,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 10:57:45,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 10:57:45,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 10:57:45,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 10:57:45,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 10:57:45,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 10:57:45,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 10:57:45,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 10:57:45,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 10:57:45,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:57:45,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 10:57:45,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 10:57:45,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 10:57:45,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 10:57:45,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 10:57:45,530 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 10:57:45,530 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 10:57:45,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 10:57:45,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 10:57:45,531 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc34b562a518e1962cb00b051353e0f6c91b97d77e3b06d95f31a41553709599 [2021-11-04 10:57:45,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 10:57:45,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 10:57:45,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 10:57:45,744 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 10:57:45,744 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 10:57:45,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i [2021-11-04 10:57:45,796 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94b3754ee/7929a8865bd44edf80b68551e72b9d52/FLAGeae48f7a7 [2021-11-04 10:57:46,443 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 10:57:46,444 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i [2021-11-04 10:57:46,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94b3754ee/7929a8865bd44edf80b68551e72b9d52/FLAGeae48f7a7 [2021-11-04 10:57:46,826 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94b3754ee/7929a8865bd44edf80b68551e72b9d52 [2021-11-04 10:57:46,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 10:57:46,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 10:57:46,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 10:57:46,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 10:57:46,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 10:57:46,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:57:46" (1/1) ... [2021-11-04 10:57:46,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e8f63df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:57:46, skipping insertion in model container [2021-11-04 10:57:46,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:57:46" (1/1) ... [2021-11-04 10:57:46,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 10:57:46,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 10:57:48,268 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i[295458,295471] [2021-11-04 10:57:48,271 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i[295605,295618] [2021-11-04 10:57:48,272 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i[295744,295757] [2021-11-04 10:57:48,272 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i[295902,295915] [2021-11-04 10:57:48,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:57:48,309 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 10:57:48,551 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i[295458,295471] [2021-11-04 10:57:48,552 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i[295605,295618] [2021-11-04 10:57:48,552 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i[295744,295757] [2021-11-04 10:57:48,552 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i[295902,295915] [2021-11-04 10:57:48,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:57:48,649 INFO L208 MainTranslator]: Completed translation [2021-11-04 10:57:48,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:57:48 WrapperNode [2021-11-04 10:57:48,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 10:57:48,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 10:57:48,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 10:57:48,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 10:57:48,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:57:48" (1/1) ... [2021-11-04 10:57:48,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:57:48" (1/1) ... [2021-11-04 10:57:52,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 10:57:52,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 10:57:52,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 10:57:52,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 10:57:52,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:57:48" (1/1) ... [2021-11-04 10:57:52,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:57:48" (1/1) ... [2021-11-04 10:57:53,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:57:48" (1/1) ... [2021-11-04 10:57:53,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:57:48" (1/1) ... [2021-11-04 10:57:54,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:57:48" (1/1) ... [2021-11-04 10:57:54,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:57:48" (1/1) ... [2021-11-04 10:57:54,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:57:48" (1/1) ... [2021-11-04 10:57:55,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 10:57:55,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 10:57:55,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 10:57:55,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 10:57:55,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:57:48" (1/1) ... [2021-11-04 10:57:55,384 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:57:55,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 10:57:55,402 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 10:57:55,404 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 10:57:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 10:57:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 10:57:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 10:57:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 10:57:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 10:57:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 10:57:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 10:57:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 10:57:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 10:57:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 10:57:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 10:57:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 10:57:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 10:57:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 10:57:55,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 10:58:03,527 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-04 10:58:03,527 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 10:58:03,527 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 10:58:03,529 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 10:58:03,602 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 10:58:03,602 INFO L299 CfgBuilder]: Removed 28663 assume(true) statements. [2021-11-04 10:58:03,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:58:03 BoogieIcfgContainer [2021-11-04 10:58:03,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 10:58:03,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 10:58:03,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 10:58:03,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 10:58:03,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 10:57:46" (1/3) ... [2021-11-04 10:58:03,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191d4dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:58:03, skipping insertion in model container [2021-11-04 10:58:03,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:57:48" (2/3) ... [2021-11-04 10:58:03,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191d4dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:58:03, skipping insertion in model container [2021-11-04 10:58:03,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:58:03" (3/3) ... [2021-11-04 10:58:03,626 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i [2021-11-04 10:58:03,632 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 10:58:03,633 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-04 10:58:03,721 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 10:58:03,727 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 10:58:03,728 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-04 10:58:03,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 21926 states, 21923 states have (on average 1.3656890024175523) internal successors, (29940), 21925 states have internal predecessors, (29940), 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 10:58:03,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-04 10:58:03,952 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:58:03,952 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] [2021-11-04 10:58:03,953 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 10:58:03,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:58:03,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1787303992, now seen corresponding path program 1 times [2021-11-04 10:58:03,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:58:03,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979373879] [2021-11-04 10:58:03,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:58:03,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:58:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:58:04,481 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 10:58:04,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:58:04,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979373879] [2021-11-04 10:58:04,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979373879] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:58:04,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:58:04,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:58:04,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708231017] [2021-11-04 10:58:04,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:58:04,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:58:04,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:58:04,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:58:04,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:58:04,551 INFO L87 Difference]: Start difference. First operand has 21926 states, 21923 states have (on average 1.3656890024175523) internal successors, (29940), 21925 states have internal predecessors, (29940), 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 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 10:58:06,616 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:58:13,637 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:58:18,691 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:58:33,046 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:58:34,646 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:58:36,368 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:58:38,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:58:59,080 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:59:00,797 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:59:30,981 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:59:33,319 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:00:05,185 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:02:15,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 11:02:15,029 INFO L93 Difference]: Finished difference Result 65613 states and 89609 transitions. [2021-11-04 11:02:15,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 11:02:15,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2021-11-04 11:02:15,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 11:02:15,224 INFO L225 Difference]: With dead ends: 65613 [2021-11-04 11:02:15,224 INFO L226 Difference]: Without dead ends: 43534 [2021-11-04 11:02:15,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.82ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:02:15,283 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 29819 mSDsluCounter, 29881 mSDsCounter, 0 mSdLazyCounter, 59593 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 196042.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29819 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 59597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 248.11ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59593 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 245492.73ms IncrementalHoareTripleChecker+Time [2021-11-04 11:02:15,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29819 Valid, 223 Invalid, 59597 Unknown, 0 Unchecked, 248.11ms Time], IncrementalHoareTripleChecker [3 Valid, 59593 Invalid, 1 Unknown, 0 Unchecked, 245492.73ms Time] [2021-11-04 11:02:15,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43534 states. [2021-11-04 11:02:16,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43534 to 43532. [2021-11-04 11:02:16,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43532 states, 43529 states have (on average 1.3623101840152543) internal successors, (59300), 43531 states have internal predecessors, (59300), 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 11:02:16,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43532 states to 43532 states and 59300 transitions. [2021-11-04 11:02:16,564 INFO L78 Accepts]: Start accepts. Automaton has 43532 states and 59300 transitions. Word has length 30 [2021-11-04 11:02:16,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 11:02:16,564 INFO L470 AbstractCegarLoop]: Abstraction has 43532 states and 59300 transitions. [2021-11-04 11:02:16,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 11:02:16,565 INFO L276 IsEmpty]: Start isEmpty. Operand 43532 states and 59300 transitions. [2021-11-04 11:02:16,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-04 11:02:16,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 11:02:16,570 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] [2021-11-04 11:02:16,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 11:02:16,571 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 11:02:16,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 11:02:16,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1199983, now seen corresponding path program 1 times [2021-11-04 11:02:16,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 11:02:16,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495283216] [2021-11-04 11:02:16,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 11:02:16,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 11:02:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 11:02:16,793 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 11:02:16,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 11:02:16,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495283216] [2021-11-04 11:02:16,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495283216] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 11:02:16,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 11:02:16,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 11:02:16,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699889524] [2021-11-04 11:02:16,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 11:02:16,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 11:02:16,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 11:02:16,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 11:02:16,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:02:16,800 INFO L87 Difference]: Start difference. First operand 43532 states and 59300 transitions. 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) [2021-11-04 11:02:18,835 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:02:30,595 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:03:03,577 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:03:10,742 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:03:17,989 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:03:46,102 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:03:53,793 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:04:43,869 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:05:13,461 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:07:52,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 11:07:52,470 INFO L93 Difference]: Finished difference Result 97783 states and 133408 transitions. [2021-11-04 11:07:52,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 11:07:52,471 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 [2021-11-04 11:07:52,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 11:07:52,588 INFO L225 Difference]: With dead ends: 97783 [2021-11-04 11:07:52,588 INFO L226 Difference]: Without dead ends: 54295 [2021-11-04 11:07:52,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.36ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:07:52,657 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 22218 mSDsluCounter, 29639 mSDsCounter, 0 mSdLazyCounter, 59393 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 246701.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22218 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 59412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 257.57ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 59393 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 331331.28ms IncrementalHoareTripleChecker+Time [2021-11-04 11:07:52,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22218 Valid, 0 Invalid, 59412 Unknown, 0 Unchecked, 257.57ms Time], IncrementalHoareTripleChecker [18 Valid, 59393 Invalid, 1 Unknown, 0 Unchecked, 331331.28ms Time] [2021-11-04 11:07:52,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54295 states. [2021-11-04 11:07:53,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54295 to 54275. [2021-11-04 11:07:53,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54275 states, 54272 states have (on average 1.3654739091981132) internal successors, (74107), 54274 states have internal predecessors, (74107), 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 11:07:53,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54275 states to 54275 states and 74107 transitions. [2021-11-04 11:07:53,866 INFO L78 Accepts]: Start accepts. Automaton has 54275 states and 74107 transitions. Word has length 52 [2021-11-04 11:07:53,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 11:07:53,867 INFO L470 AbstractCegarLoop]: Abstraction has 54275 states and 74107 transitions. [2021-11-04 11:07:53,867 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) [2021-11-04 11:07:53,868 INFO L276 IsEmpty]: Start isEmpty. Operand 54275 states and 74107 transitions. [2021-11-04 11:07:53,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-04 11:07:53,871 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 11:07:53,871 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 11:07:53,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 11:07:53,872 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 11:07:53,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 11:07:53,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1697863686, now seen corresponding path program 1 times [2021-11-04 11:07:53,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 11:07:53,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199024925] [2021-11-04 11:07:53,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 11:07:53,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 11:07:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 11:07:54,277 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 11:07:54,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 11:07:54,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199024925] [2021-11-04 11:07:54,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199024925] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 11:07:54,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 11:07:54,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 11:07:54,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618392221] [2021-11-04 11:07:54,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 11:07:54,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 11:07:54,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 11:07:54,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 11:07:54,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:07:54,281 INFO L87 Difference]: Start difference. First operand 54275 states and 74107 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) [2021-11-04 11:07:56,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:08:58,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:09:00,113 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:09:27,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:12:07,744 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15