./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.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 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 01:41:30,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 01:41:30,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 01:41:30,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 01:41:30,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 01:41:30,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 01:41:30,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 01:41:30,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 01:41:30,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 01:41:30,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 01:41:30,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 01:41:30,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 01:41:30,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 01:41:30,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 01:41:30,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 01:41:30,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 01:41:30,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 01:41:30,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 01:41:30,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 01:41:30,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 01:41:30,324 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 01:41:30,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 01:41:30,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 01:41:30,327 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 01:41:30,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 01:41:30,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 01:41:30,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 01:41:30,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 01:41:30,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 01:41:30,336 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 01:41:30,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 01:41:30,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 01:41:30,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 01:41:30,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 01:41:30,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 01:41:30,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 01:41:30,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 01:41:30,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 01:41:30,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 01:41:30,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 01:41:30,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 01:41:30,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 01:41:30,345 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 01:41:30,377 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 01:41:30,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 01:41:30,378 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 01:41:30,378 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 01:41:30,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 01:41:30,379 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 01:41:30,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 01:41:30,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 01:41:30,380 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 01:41:30,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 01:41:30,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 01:41:30,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 01:41:30,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 01:41:30,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 01:41:30,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 01:41:30,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 01:41:30,382 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 01:41:30,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 01:41:30,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 01:41:30,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 01:41:30,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 01:41:30,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:41:30,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 01:41:30,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 01:41:30,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 01:41:30,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 01:41:30,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 01:41:30,386 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 01:41:30,386 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 01:41:30,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 01:41:30,386 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 [2022-07-14 01:41:30,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 01:41:30,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 01:41:30,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 01:41:30,680 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 01:41:30,681 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 01:41:30,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2022-07-14 01:41:30,744 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d43a9f2ab/ee78572bef4e4adaadcea3ebdf21750a/FLAGcabccfa11 [2022-07-14 01:41:31,528 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 01:41:31,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2022-07-14 01:41:31,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d43a9f2ab/ee78572bef4e4adaadcea3ebdf21750a/FLAGcabccfa11 [2022-07-14 01:41:31,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d43a9f2ab/ee78572bef4e4adaadcea3ebdf21750a [2022-07-14 01:41:31,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 01:41:31,741 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 01:41:31,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 01:41:31,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 01:41:31,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 01:41:31,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:41:31" (1/1) ... [2022-07-14 01:41:31,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42c6d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:41:31, skipping insertion in model container [2022-07-14 01:41:31,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:41:31" (1/1) ... [2022-07-14 01:41:31,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 01:41:31,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:41:33,607 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2022-07-14 01:41:33,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:41:33,815 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 01:41:34,087 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: hc_fminterval = hc_fminterval & 16383U [7308] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-14 01:41:34,096 INFO L158 Benchmark]: Toolchain (without parser) took 2353.07ms. Allocated memory was 86.0MB in the beginning and 140.5MB in the end (delta: 54.5MB). Free memory was 40.1MB in the beginning and 80.5MB in the end (delta: -40.4MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2022-07-14 01:41:34,097 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 86.0MB. Free memory was 43.5MB in the beginning and 43.5MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 01:41:34,099 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2351.15ms. Allocated memory was 86.0MB in the beginning and 140.5MB in the end (delta: 54.5MB). Free memory was 39.8MB in the beginning and 80.5MB in the end (delta: -40.6MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2022-07-14 01:41:34,100 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 86.0MB. Free memory was 43.5MB in the beginning and 43.5MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2351.15ms. Allocated memory was 86.0MB in the beginning and 140.5MB in the end (delta: 54.5MB). Free memory was 39.8MB in the beginning and 80.5MB in the end (delta: -40.6MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: hc_fminterval = hc_fminterval & 16383U [7308] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: hc_fminterval = hc_fminterval & 16383U [7308]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 01:41:35,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 01:41:35,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 01:41:35,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 01:41:35,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 01:41:35,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 01:41:35,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 01:41:35,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 01:41:35,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 01:41:35,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 01:41:35,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 01:41:35,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 01:41:35,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 01:41:35,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 01:41:35,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 01:41:35,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 01:41:35,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 01:41:35,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 01:41:35,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 01:41:35,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 01:41:35,865 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 01:41:35,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 01:41:35,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 01:41:35,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 01:41:35,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 01:41:35,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 01:41:35,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 01:41:35,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 01:41:35,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 01:41:35,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 01:41:35,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 01:41:35,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 01:41:35,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 01:41:35,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 01:41:35,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 01:41:35,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 01:41:35,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 01:41:35,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 01:41:35,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 01:41:35,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 01:41:35,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 01:41:35,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 01:41:35,894 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 01:41:35,929 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 01:41:35,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 01:41:35,930 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 01:41:35,931 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 01:41:35,931 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 01:41:35,931 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 01:41:35,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 01:41:35,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 01:41:35,933 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 01:41:35,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 01:41:35,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 01:41:35,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 01:41:35,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 01:41:35,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 01:41:35,943 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 01:41:35,944 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 01:41:35,944 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 01:41:35,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 01:41:35,944 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 01:41:35,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 01:41:35,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 01:41:35,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 01:41:35,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 01:41:35,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:41:35,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 01:41:35,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 01:41:35,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 01:41:35,946 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 01:41:35,947 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 01:41:35,947 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 01:41:35,947 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 01:41:35,948 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 01:41:35,948 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 01:41:35,948 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 [2022-07-14 01:41:36,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 01:41:36,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 01:41:36,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 01:41:36,274 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 01:41:36,274 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 01:41:36,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2022-07-14 01:41:36,337 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dc2a64bf/b7b12d4fb7ee4abb9e1ee61db5cea2d3/FLAG1b6dd4093 [2022-07-14 01:41:37,146 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 01:41:37,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2022-07-14 01:41:37,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dc2a64bf/b7b12d4fb7ee4abb9e1ee61db5cea2d3/FLAG1b6dd4093 [2022-07-14 01:41:37,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dc2a64bf/b7b12d4fb7ee4abb9e1ee61db5cea2d3 [2022-07-14 01:41:37,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 01:41:37,330 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 01:41:37,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 01:41:37,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 01:41:37,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 01:41:37,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:41:37" (1/1) ... [2022-07-14 01:41:37,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14cd89e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:41:37, skipping insertion in model container [2022-07-14 01:41:37,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:41:37" (1/1) ... [2022-07-14 01:41:37,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 01:41:37,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:41:39,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2022-07-14 01:41:39,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:41:39,351 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 01:41:39,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:41:39,690 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2022-07-14 01:41:39,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:41:39,731 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 01:41:40,050 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2022-07-14 01:41:40,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:41:40,207 INFO L208 MainTranslator]: Completed translation [2022-07-14 01:41:40,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:41:40 WrapperNode [2022-07-14 01:41:40,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 01:41:40,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 01:41:40,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 01:41:40,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 01:41:40,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:41:40" (1/1) ... [2022-07-14 01:41:40,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:41:40" (1/1) ... [2022-07-14 01:41:40,497 INFO L137 Inliner]: procedures = 394, calls = 3030, calls flagged for inlining = 180, calls inlined = 148, statements flattened = 6570 [2022-07-14 01:41:40,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 01:41:40,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 01:41:40,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 01:41:40,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 01:41:40,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:41:40" (1/1) ... [2022-07-14 01:41:40,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:41:40" (1/1) ... [2022-07-14 01:41:40,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:41:40" (1/1) ... [2022-07-14 01:41:40,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:41:40" (1/1) ... [2022-07-14 01:41:40,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:41:40" (1/1) ... [2022-07-14 01:41:40,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:41:40" (1/1) ... [2022-07-14 01:41:40,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:41:40" (1/1) ... [2022-07-14 01:41:40,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 01:41:40,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 01:41:40,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 01:41:40,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 01:41:40,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:41:40" (1/1) ... [2022-07-14 01:41:40,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:41:40,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:41:40,836 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) [2022-07-14 01:41:40,857 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 [2022-07-14 01:41:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-07-14 01:41:40,874 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-07-14 01:41:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 01:41:40,874 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 01:41:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_flush_input_fifo [2022-07-14 01:41:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_flush_input_fifo [2022-07-14 01:41:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 01:41:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 01:41:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-07-14 01:41:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-07-14 01:41:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-07-14 01:41:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-07-14 01:41:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-07-14 01:41:40,876 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-07-14 01:41:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_get_kref [2022-07-14 01:41:40,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_get_kref [2022-07-14 01:41:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-14 01:41:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-07-14 01:41:40,876 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-07-14 01:41:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_cancel_work [2022-07-14 01:41:40,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_cancel_work [2022-07-14 01:41:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ftdi_module_lock [2022-07-14 01:41:40,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ftdi_module_lock [2022-07-14 01:41:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 01:41:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 01:41:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 01:41:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 01:41:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-14 01:41:40,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-14 01:41:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-14 01:41:40,879 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-14 01:41:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_requeue_work [2022-07-14 01:41:40,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_requeue_work [2022-07-14 01:41:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_gone_away [2022-07-14 01:41:40,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_gone_away [2022-07-14 01:41:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_config [2022-07-14 01:41:40,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_config [2022-07-14 01:41:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_requeue_work [2022-07-14 01:41:40,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_requeue_work [2022-07-14 01:41:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-07-14 01:41:40,880 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-07-14 01:41:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_reg [2022-07-14 01:41:40,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_reg [2022-07-14 01:41:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_respond_queue_work [2022-07-14 01:41:40,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_respond_queue_work [2022-07-14 01:41:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-14 01:41:40,881 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-14 01:41:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_89 [2022-07-14 01:41:40,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_89 [2022-07-14 01:41:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_88 [2022-07-14 01:41:40,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_88 [2022-07-14 01:41:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_87 [2022-07-14 01:41:40,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_87 [2022-07-14 01:41:40,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 01:41:40,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 01:41:40,884 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_put_kref [2022-07-14 01:41:40,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_put_kref [2022-07-14 01:41:40,885 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_targets [2022-07-14 01:41:40,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_targets [2022-07-14 01:41:40,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 01:41:40,885 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_pcimem [2022-07-14 01:41:40,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_pcimem [2022-07-14 01:41:40,885 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-07-14 01:41:40,886 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-07-14 01:41:40,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_u132_lock_of_usb_ftdi [2022-07-14 01:41:40,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_u132_lock_of_usb_ftdi [2022-07-14 01:41:40,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 01:41:40,887 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-07-14 01:41:40,887 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-07-14 01:41:40,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 01:41:40,887 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_requeue_work [2022-07-14 01:41:40,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_requeue_work [2022-07-14 01:41:40,887 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 01:41:40,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 01:41:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_queue_work [2022-07-14 01:41:40,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_queue_work [2022-07-14 01:41:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-07-14 01:41:40,888 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-07-14 01:41:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_pcimem [2022-07-14 01:41:40,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_pcimem [2022-07-14 01:41:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-14 01:41:40,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-14 01:41:40,889 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 01:41:40,889 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 01:41:40,889 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-07-14 01:41:40,890 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-07-14 01:41:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 01:41:40,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 01:41:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 01:41:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-07-14 01:41:40,891 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-07-14 01:41:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-14 01:41:40,891 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-14 01:41:40,892 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-07-14 01:41:40,892 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-07-14 01:41:40,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 01:41:40,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 01:41:40,892 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_kick_command_queue [2022-07-14 01:41:40,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_kick_command_queue [2022-07-14 01:41:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 01:41:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 01:41:40,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 01:41:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-07-14 01:41:40,893 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-07-14 01:41:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_config [2022-07-14 01:41:40,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_config [2022-07-14 01:41:40,894 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-07-14 01:41:40,894 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-07-14 01:41:40,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_u132_lock_of_usb_ftdi [2022-07-14 01:41:40,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_u132_lock_of_usb_ftdi [2022-07-14 01:41:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 01:41:40,895 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 01:41:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-07-14 01:41:40,897 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-07-14 01:41:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 01:41:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 01:41:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-07-14 01:41:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-07-14 01:41:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 01:41:40,900 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 01:41:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-14 01:41:40,904 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-14 01:41:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_status_work [2022-07-14 01:41:40,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_status_work [2022-07-14 01:41:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_cancel_work [2022-07-14 01:41:40,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_cancel_work [2022-07-14 01:41:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 01:41:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 01:41:40,905 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 01:41:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure up [2022-07-14 01:41:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2022-07-14 01:41:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 01:41:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-07-14 01:41:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-07-14 01:41:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 01:41:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 01:41:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 01:41:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 01:41:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2022-07-14 01:41:40,907 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2022-07-14 01:41:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 01:41:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_cancel_work [2022-07-14 01:41:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_cancel_work [2022-07-14 01:41:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-14 01:41:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-14 01:41:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_do_callback [2022-07-14 01:41:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_do_callback [2022-07-14 01:41:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-07-14 01:41:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-07-14 01:41:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-14 01:41:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-14 01:41:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-14 01:41:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-14 01:41:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-07-14 01:41:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-07-14 01:41:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_found_controller [2022-07-14 01:41:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_found_controller [2022-07-14 01:41:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_setup_controller [2022-07-14 01:41:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_setup_controller [2022-07-14 01:41:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_respond_work [2022-07-14 01:41:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_respond_work [2022-07-14 01:41:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-07-14 01:41:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-07-14 01:41:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-07-14 01:41:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-07-14 01:41:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_disconnect [2022-07-14 01:41:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_disconnect [2022-07-14 01:41:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write [2022-07-14 01:41:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write [2022-07-14 01:41:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-14 01:41:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-14 01:41:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_completions [2022-07-14 01:41:40,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_completions [2022-07-14 01:41:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-07-14 01:41:40,912 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-07-14 01:41:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 01:41:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 01:41:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 01:41:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 01:41:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 01:41:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_command_work [2022-07-14 01:41:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_command_work [2022-07-14 01:41:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-14 01:41:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-14 01:41:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-07-14 01:41:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-07-14 01:41:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-07-14 01:41:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-07-14 01:41:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-14 01:41:40,915 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-14 01:41:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-14 01:41:40,915 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-14 01:41:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_reg [2022-07-14 01:41:40,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_reg [2022-07-14 01:41:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ftdi_module_lock [2022-07-14 01:41:40,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ftdi_module_lock [2022-07-14 01:41:41,760 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 01:41:41,763 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 01:42:02,671 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 01:42:53,231 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 01:42:53,247 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 01:42:53,247 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 01:42:53,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:42:53 BoogieIcfgContainer [2022-07-14 01:42:53,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 01:42:53,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 01:42:53,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 01:42:53,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 01:42:53,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:41:37" (1/3) ... [2022-07-14 01:42:53,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abe6cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:42:53, skipping insertion in model container [2022-07-14 01:42:53,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:41:40" (2/3) ... [2022-07-14 01:42:53,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abe6cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:42:53, skipping insertion in model container [2022-07-14 01:42:53,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:42:53" (3/3) ... [2022-07-14 01:42:53,259 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2022-07-14 01:42:53,270 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 01:42:53,271 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 01:42:53,354 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 01:42:53,363 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@378b0404, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@66b09414 [2022-07-14 01:42:53,364 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 01:42:53,374 INFO L276 IsEmpty]: Start isEmpty. Operand has 1674 states, 1126 states have (on average 1.3996447602131439) internal successors, (1576), 1179 states have internal predecessors, (1576), 461 states have call successors, (461), 86 states have call predecessors, (461), 85 states have return successors, (454), 445 states have call predecessors, (454), 454 states have call successors, (454) [2022-07-14 01:42:53,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-14 01:42:53,398 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:42:53,399 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:42:53,399 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:42:53,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:42:53,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1015355331, now seen corresponding path program 1 times [2022-07-14 01:42:53,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:42:53,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316069976] [2022-07-14 01:42:53,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:42:53,419 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:42:53,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:42:53,423 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:42:53,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 01:42:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:42:54,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 1614 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-14 01:42:54,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:42:55,012 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-07-14 01:42:55,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:42:55,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:42:55,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316069976] [2022-07-14 01:42:55,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1316069976] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:42:55,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:42:55,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 01:42:55,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615855000] [2022-07-14 01:42:55,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:42:55,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-14 01:42:55,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:42:55,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-14 01:42:55,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 01:42:55,052 INFO L87 Difference]: Start difference. First operand has 1674 states, 1126 states have (on average 1.3996447602131439) internal successors, (1576), 1179 states have internal predecessors, (1576), 461 states have call successors, (461), 86 states have call predecessors, (461), 85 states have return successors, (454), 445 states have call predecessors, (454), 454 states have call successors, (454) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 01:42:55,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:42:55,257 INFO L93 Difference]: Finished difference Result 3343 states and 5205 transitions. [2022-07-14 01:42:55,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-14 01:42:55,260 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2022-07-14 01:42:55,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:42:55,285 INFO L225 Difference]: With dead ends: 3343 [2022-07-14 01:42:55,286 INFO L226 Difference]: Without dead ends: 1660 [2022-07-14 01:42:55,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 01:42:55,315 INFO L413 NwaCegarLoop]: 2479 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2479 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 01:42:55,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 01:42:55,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2022-07-14 01:42:55,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1660. [2022-07-14 01:42:55,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1660 states, 1121 states have (on average 1.392506690454951) internal successors, (1561), 1165 states have internal predecessors, (1561), 454 states have call successors, (454), 85 states have call predecessors, (454), 84 states have return successors, (445), 436 states have call predecessors, (445), 445 states have call successors, (445) [2022-07-14 01:42:55,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2460 transitions. [2022-07-14 01:42:55,480 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2460 transitions. Word has length 135 [2022-07-14 01:42:55,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:42:55,483 INFO L495 AbstractCegarLoop]: Abstraction has 1660 states and 2460 transitions. [2022-07-14 01:42:55,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 01:42:55,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2460 transitions. [2022-07-14 01:42:55,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-14 01:42:55,489 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:42:55,490 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:42:55,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-14 01:42:55,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:42:55,712 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:42:55,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:42:55,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1914785415, now seen corresponding path program 1 times [2022-07-14 01:42:55,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:42:55,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102936696] [2022-07-14 01:42:55,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:42:55,714 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:42:55,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:42:55,717 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:42:55,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 01:42:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:42:57,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 1614 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 01:42:57,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:42:57,533 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-07-14 01:42:57,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:42:57,533 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:42:57,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102936696] [2022-07-14 01:42:57,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102936696] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:42:57,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:42:57,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 01:42:57,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31483147] [2022-07-14 01:42:57,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:42:57,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 01:42:57,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:42:57,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 01:42:57,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 01:42:57,537 INFO L87 Difference]: Start difference. First operand 1660 states and 2460 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-14 01:42:57,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:42:57,875 INFO L93 Difference]: Finished difference Result 3310 states and 4908 transitions. [2022-07-14 01:42:57,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 01:42:57,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 135 [2022-07-14 01:42:57,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:42:57,890 INFO L225 Difference]: With dead ends: 3310 [2022-07-14 01:42:57,891 INFO L226 Difference]: Without dead ends: 1661 [2022-07-14 01:42:57,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 01:42:57,904 INFO L413 NwaCegarLoop]: 2458 mSDtfsCounter, 3 mSDsluCounter, 4907 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7365 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:42:57,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7365 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 01:42:57,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2022-07-14 01:42:57,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1661. [2022-07-14 01:42:57,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1661 states, 1122 states have (on average 1.392156862745098) internal successors, (1562), 1166 states have internal predecessors, (1562), 454 states have call successors, (454), 85 states have call predecessors, (454), 84 states have return successors, (445), 436 states have call predecessors, (445), 445 states have call successors, (445) [2022-07-14 01:42:57,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2461 transitions. [2022-07-14 01:42:57,973 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2461 transitions. Word has length 135 [2022-07-14 01:42:57,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:42:57,975 INFO L495 AbstractCegarLoop]: Abstraction has 1661 states and 2461 transitions. [2022-07-14 01:42:57,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-14 01:42:57,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2461 transitions. [2022-07-14 01:42:57,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-14 01:42:57,978 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:42:57,978 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:42:58,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 01:42:58,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:42:58,199 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:42:58,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:42:58,200 INFO L85 PathProgramCache]: Analyzing trace with hash 914592341, now seen corresponding path program 1 times [2022-07-14 01:42:58,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:42:58,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321529401] [2022-07-14 01:42:58,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:42:58,202 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:42:58,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:42:58,204 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:42:58,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 01:42:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:42:59,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 1658 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 01:42:59,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:43:00,201 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-07-14 01:43:00,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 01:43:00,879 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-07-14 01:43:00,879 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:43:00,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [321529401] [2022-07-14 01:43:00,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [321529401] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 01:43:00,880 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 01:43:00,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-14 01:43:00,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447635687] [2022-07-14 01:43:00,880 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 01:43:00,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 01:43:00,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:43:00,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 01:43:00,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:43:00,882 INFO L87 Difference]: Start difference. First operand 1661 states and 2461 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 01:43:02,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:43:02,164 INFO L93 Difference]: Finished difference Result 3321 states and 4925 transitions. [2022-07-14 01:43:02,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 01:43:02,165 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2022-07-14 01:43:02,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:43:02,177 INFO L225 Difference]: With dead ends: 3321 [2022-07-14 01:43:02,178 INFO L226 Difference]: Without dead ends: 1671 [2022-07-14 01:43:02,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-07-14 01:43:02,189 INFO L413 NwaCegarLoop]: 2457 mSDtfsCounter, 12 mSDsluCounter, 12264 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 14721 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 01:43:02,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 14721 Invalid, 69 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 01:43:02,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2022-07-14 01:43:02,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1671. [2022-07-14 01:43:02,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1131 states have (on average 1.391688770999116) internal successors, (1574), 1175 states have internal predecessors, (1574), 454 states have call successors, (454), 86 states have call predecessors, (454), 85 states have return successors, (445), 436 states have call predecessors, (445), 445 states have call successors, (445) [2022-07-14 01:43:02,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2473 transitions. [2022-07-14 01:43:02,252 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2473 transitions. Word has length 139 [2022-07-14 01:43:02,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:43:02,253 INFO L495 AbstractCegarLoop]: Abstraction has 1671 states and 2473 transitions. [2022-07-14 01:43:02,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 01:43:02,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2473 transitions. [2022-07-14 01:43:02,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-14 01:43:02,257 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:43:02,257 INFO L195 NwaCegarLoop]: trace histogram [14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:43:02,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 01:43:02,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:43:02,470 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:43:02,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:43:02,471 INFO L85 PathProgramCache]: Analyzing trace with hash -58419911, now seen corresponding path program 2 times [2022-07-14 01:43:02,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:43:02,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282668444] [2022-07-14 01:43:02,472 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 01:43:02,472 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:43:02,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:43:02,474 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:43:02,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 01:43:03,623 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 01:43:03,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 01:43:03,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 01:43:03,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:43:03,865 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-07-14 01:43:03,937 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2022-07-14 01:43:03,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:43:03,937 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:43:03,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282668444] [2022-07-14 01:43:03,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282668444] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:43:03,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:43:03,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 01:43:03,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108489936] [2022-07-14 01:43:03,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:43:03,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 01:43:03,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:43:03,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 01:43:03,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 01:43:03,944 INFO L87 Difference]: Start difference. First operand 1671 states and 2473 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-14 01:43:06,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:08,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:11,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:15,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:16,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:17,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:19,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:21,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:23,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:25,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:28,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:30,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:31,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:32,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:34,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:36,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:38,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:41,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:42,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:43,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:46,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:51,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:53,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:55,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:43:58,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:00,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:01,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:04,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:06,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:08,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:10,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:12,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:16,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:19,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:21,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:23,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:25,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:27,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:29,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:31,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:33,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:35,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:37,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:39,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:41,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:43,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:45,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:48,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:50,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:51,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:53,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:55,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:56,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:44:58,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:45:01,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:45:02,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:45:07,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:45:09,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:45:09,020 INFO L93 Difference]: Finished difference Result 3278 states and 4925 transitions. [2022-07-14 01:45:09,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 01:45:09,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 149 [2022-07-14 01:45:09,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:45:09,033 INFO L225 Difference]: With dead ends: 3278 [2022-07-14 01:45:09,036 INFO L226 Difference]: Without dead ends: 1647 [2022-07-14 01:45:09,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:45:09,053 INFO L413 NwaCegarLoop]: 2377 mSDtfsCounter, 24 mSDsluCounter, 6580 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 4 mSolverCounterUnsat, 36 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 122.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 8957 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 36 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 124.8s IncrementalHoareTripleChecker+Time [2022-07-14 01:45:09,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 8957 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 565 Invalid, 36 Unknown, 0 Unchecked, 124.8s Time] [2022-07-14 01:45:09,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-07-14 01:45:09,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1628. [2022-07-14 01:45:09,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1103 states have (on average 1.388032638259293) internal successors, (1531), 1147 states have internal predecessors, (1531), 439 states have call successors, (439), 86 states have call predecessors, (439), 85 states have return successors, (430), 421 states have call predecessors, (430), 430 states have call successors, (430) [2022-07-14 01:45:09,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2400 transitions. [2022-07-14 01:45:09,118 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2400 transitions. Word has length 149 [2022-07-14 01:45:09,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:45:09,119 INFO L495 AbstractCegarLoop]: Abstraction has 1628 states and 2400 transitions. [2022-07-14 01:45:09,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-14 01:45:09,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2400 transitions. [2022-07-14 01:45:09,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-14 01:45:09,124 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:45:09,125 INFO L195 NwaCegarLoop]: trace histogram [14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:45:09,163 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-14 01:45:09,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:45:09,351 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:45:09,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:45:09,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1109194293, now seen corresponding path program 1 times [2022-07-14 01:45:09,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:45:09,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438223482] [2022-07-14 01:45:09,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:45:09,354 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:45:09,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:45:09,355 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:45:09,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 01:45:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:45:10,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 1772 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 01:45:10,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:45:11,731 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 77 proven. 10 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-07-14 01:45:11,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 01:45:13,987 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-07-14 01:45:13,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:45:13,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438223482] [2022-07-14 01:45:13,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [438223482] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 01:45:13,988 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 01:45:13,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-07-14 01:45:13,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673086752] [2022-07-14 01:45:13,988 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 01:45:13,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 01:45:13,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:45:13,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 01:45:13,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-14 01:45:13,990 INFO L87 Difference]: Start difference. First operand 1628 states and 2400 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 01:45:16,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:45:16,657 INFO L93 Difference]: Finished difference Result 3260 states and 4809 transitions. [2022-07-14 01:45:16,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-14 01:45:16,659 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 151 [2022-07-14 01:45:16,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:45:16,677 INFO L225 Difference]: With dead ends: 3260 [2022-07-14 01:45:16,678 INFO L226 Difference]: Without dead ends: 1640 [2022-07-14 01:45:16,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420 [2022-07-14 01:45:16,688 INFO L413 NwaCegarLoop]: 2388 mSDtfsCounter, 52 mSDsluCounter, 11921 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 14309 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:45:16,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 14309 Invalid, 170 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-14 01:45:16,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2022-07-14 01:45:16,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1634. [2022-07-14 01:45:16,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1109 states have (on average 1.3868349864743013) internal successors, (1538), 1153 states have internal predecessors, (1538), 439 states have call successors, (439), 86 states have call predecessors, (439), 85 states have return successors, (430), 421 states have call predecessors, (430), 430 states have call successors, (430) [2022-07-14 01:45:16,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2407 transitions. [2022-07-14 01:45:16,762 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2407 transitions. Word has length 151 [2022-07-14 01:45:16,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:45:16,763 INFO L495 AbstractCegarLoop]: Abstraction has 1634 states and 2407 transitions. [2022-07-14 01:45:16,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 01:45:16,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2407 transitions. [2022-07-14 01:45:16,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-14 01:45:16,767 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:45:16,768 INFO L195 NwaCegarLoop]: trace histogram [26, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:45:16,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 01:45:16,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:45:16,988 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:45:16,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:45:16,988 INFO L85 PathProgramCache]: Analyzing trace with hash 806146123, now seen corresponding path program 2 times [2022-07-14 01:45:16,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:45:16,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893405907] [2022-07-14 01:45:16,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 01:45:16,990 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:45:16,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:45:16,991 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:45:16,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 01:45:18,174 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 01:45:18,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 01:45:18,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 1340 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:45:18,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:45:18,438 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2022-07-14 01:45:18,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:45:18,438 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:45:18,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893405907] [2022-07-14 01:45:18,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [893405907] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:45:18,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:45:18,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:45:18,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592879154] [2022-07-14 01:45:18,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:45:18,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:45:18,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:45:18,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:45:18,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:45:18,440 INFO L87 Difference]: Start difference. First operand 1634 states and 2407 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-14 01:45:18,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:45:18,789 INFO L93 Difference]: Finished difference Result 4723 states and 7275 transitions. [2022-07-14 01:45:18,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:45:18,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 163 [2022-07-14 01:45:18,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:45:18,811 INFO L225 Difference]: With dead ends: 4723 [2022-07-14 01:45:18,812 INFO L226 Difference]: Without dead ends: 3135 [2022-07-14 01:45:18,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:45:18,827 INFO L413 NwaCegarLoop]: 2804 mSDtfsCounter, 2235 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2235 SdHoareTripleChecker+Valid, 5293 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:45:18,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2235 Valid, 5293 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 01:45:18,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3135 states. [2022-07-14 01:45:18,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3135 to 3116. [2022-07-14 01:45:18,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 2121 states have (on average 1.3927392739273927) internal successors, (2954), 2207 states have internal predecessors, (2954), 835 states have call successors, (835), 168 states have call predecessors, (835), 159 states have return successors, (956), 788 states have call predecessors, (956), 826 states have call successors, (956) [2022-07-14 01:45:18,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 4745 transitions. [2022-07-14 01:45:18,970 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 4745 transitions. Word has length 163 [2022-07-14 01:45:18,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:45:18,970 INFO L495 AbstractCegarLoop]: Abstraction has 3116 states and 4745 transitions. [2022-07-14 01:45:18,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-14 01:45:18,971 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 4745 transitions. [2022-07-14 01:45:18,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-14 01:45:18,975 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:45:18,975 INFO L195 NwaCegarLoop]: trace histogram [26, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:45:19,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 01:45:19,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:45:19,191 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:45:19,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:45:19,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1296385389, now seen corresponding path program 1 times [2022-07-14 01:45:19,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:45:19,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018671401] [2022-07-14 01:45:19,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:45:19,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:45:19,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:45:19,196 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:45:19,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 01:45:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:45:21,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 1906 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 01:45:21,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:45:21,582 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 262 proven. 3 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2022-07-14 01:45:21,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 01:45:22,688 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 30 proven. 63 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2022-07-14 01:45:22,688 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:45:22,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018671401] [2022-07-14 01:45:22,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1018671401] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 01:45:22,688 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 01:45:22,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-07-14 01:45:22,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191440150] [2022-07-14 01:45:22,689 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 01:45:22,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 01:45:22,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:45:22,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 01:45:22,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-14 01:45:22,690 INFO L87 Difference]: Start difference. First operand 3116 states and 4745 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 01:45:23,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:45:23,732 INFO L93 Difference]: Finished difference Result 6216 states and 9465 transitions. [2022-07-14 01:45:23,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 01:45:23,734 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 164 [2022-07-14 01:45:23,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:45:23,756 INFO L225 Difference]: With dead ends: 6216 [2022-07-14 01:45:23,756 INFO L226 Difference]: Without dead ends: 3116 [2022-07-14 01:45:23,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-07-14 01:45:23,775 INFO L413 NwaCegarLoop]: 2381 mSDtfsCounter, 20 mSDsluCounter, 11890 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 14271 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 01:45:23,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 14271 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 01:45:23,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-07-14 01:45:23,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-07-14 01:45:23,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 2121 states have (on average 1.3908533710513908) internal successors, (2950), 2207 states have internal predecessors, (2950), 835 states have call successors, (835), 168 states have call predecessors, (835), 159 states have return successors, (956), 788 states have call predecessors, (956), 826 states have call successors, (956) [2022-07-14 01:45:23,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 4741 transitions. [2022-07-14 01:45:23,907 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 4741 transitions. Word has length 164 [2022-07-14 01:45:23,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:45:23,907 INFO L495 AbstractCegarLoop]: Abstraction has 3116 states and 4741 transitions. [2022-07-14 01:45:23,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 01:45:23,908 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 4741 transitions. [2022-07-14 01:45:23,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-14 01:45:23,911 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:45:23,911 INFO L195 NwaCegarLoop]: trace histogram [28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:45:23,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 01:45:24,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:45:24,130 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:45:24,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:45:24,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1126223917, now seen corresponding path program 2 times [2022-07-14 01:45:24,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:45:24,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [565239266] [2022-07-14 01:45:24,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 01:45:24,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:45:24,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:45:24,134 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:45:24,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 01:45:25,355 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 01:45:25,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 01:45:25,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 1342 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:45:25,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:45:25,588 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-14 01:45:25,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:45:25,589 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:45:25,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [565239266] [2022-07-14 01:45:25,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [565239266] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:45:25,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:45:25,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:45:25,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695777122] [2022-07-14 01:45:25,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:45:25,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:45:25,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:45:25,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:45:25,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:45:25,591 INFO L87 Difference]: Start difference. First operand 3116 states and 4741 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-14 01:45:26,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:45:26,122 INFO L93 Difference]: Finished difference Result 7764 states and 12276 transitions. [2022-07-14 01:45:26,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:45:26,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 166 [2022-07-14 01:45:26,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:45:26,154 INFO L225 Difference]: With dead ends: 7764 [2022-07-14 01:45:26,155 INFO L226 Difference]: Without dead ends: 4694 [2022-07-14 01:45:26,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:45:26,171 INFO L413 NwaCegarLoop]: 2805 mSDtfsCounter, 2361 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 5298 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:45:26,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2361 Valid, 5298 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 01:45:26,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4694 states. [2022-07-14 01:45:26,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4694 to 4675. [2022-07-14 01:45:26,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4675 states, 3180 states have (on average 1.389937106918239) internal successors, (4420), 3303 states have internal predecessors, (4420), 1252 states have call successors, (1252), 251 states have call predecessors, (1252), 242 states have return successors, (1597), 1195 states have call predecessors, (1597), 1243 states have call successors, (1597) [2022-07-14 01:45:26,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4675 states to 4675 states and 7269 transitions. [2022-07-14 01:45:26,344 INFO L78 Accepts]: Start accepts. Automaton has 4675 states and 7269 transitions. Word has length 166 [2022-07-14 01:45:26,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:45:26,345 INFO L495 AbstractCegarLoop]: Abstraction has 4675 states and 7269 transitions. [2022-07-14 01:45:26,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-14 01:45:26,345 INFO L276 IsEmpty]: Start isEmpty. Operand 4675 states and 7269 transitions. [2022-07-14 01:45:26,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-14 01:45:26,348 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:45:26,348 INFO L195 NwaCegarLoop]: trace histogram [28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:45:26,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 01:45:26,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:45:26,563 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:45:26,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:45:26,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1579180554, now seen corresponding path program 1 times [2022-07-14 01:45:26,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:45:26,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954198436] [2022-07-14 01:45:26,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:45:26,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:45:26,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:45:26,568 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:45:26,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 01:45:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:45:29,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 1960 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:45:29,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:45:29,783 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-14 01:45:29,783 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:45:29,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:45:29,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954198436] [2022-07-14 01:45:29,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954198436] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:45:29,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:45:29,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:45:29,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663260932] [2022-07-14 01:45:29,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:45:29,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:45:29,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:45:29,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:45:29,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:45:29,785 INFO L87 Difference]: Start difference. First operand 4675 states and 7269 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 01:45:30,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:45:30,228 INFO L93 Difference]: Finished difference Result 13431 states and 20925 transitions. [2022-07-14 01:45:30,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:45:30,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 166 [2022-07-14 01:45:30,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:45:30,307 INFO L225 Difference]: With dead ends: 13431 [2022-07-14 01:45:30,307 INFO L226 Difference]: Without dead ends: 8802 [2022-07-14 01:45:30,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:45:30,338 INFO L413 NwaCegarLoop]: 2856 mSDtfsCounter, 2171 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 5154 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:45:30,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 5154 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 01:45:30,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8802 states. [2022-07-14 01:45:30,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8802 to 8779. [2022-07-14 01:45:30,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8779 states, 5989 states have (on average 1.3983970612790115) internal successors, (8375), 6219 states have internal predecessors, (8375), 2325 states have call successors, (2325), 481 states have call predecessors, (2325), 464 states have return successors, (2981), 2223 states have call predecessors, (2981), 2316 states have call successors, (2981) [2022-07-14 01:45:30,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8779 states to 8779 states and 13681 transitions. [2022-07-14 01:45:30,715 INFO L78 Accepts]: Start accepts. Automaton has 8779 states and 13681 transitions. Word has length 166 [2022-07-14 01:45:30,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:45:30,716 INFO L495 AbstractCegarLoop]: Abstraction has 8779 states and 13681 transitions. [2022-07-14 01:45:30,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 01:45:30,716 INFO L276 IsEmpty]: Start isEmpty. Operand 8779 states and 13681 transitions. [2022-07-14 01:45:30,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-14 01:45:30,719 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:45:30,719 INFO L195 NwaCegarLoop]: trace histogram [28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:45:30,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 01:45:30,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:45:30,935 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:45:30,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:45:30,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1337346782, now seen corresponding path program 1 times [2022-07-14 01:45:30,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:45:30,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097875603] [2022-07-14 01:45:30,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:45:30,938 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:45:30,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:45:30,940 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:45:30,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 01:45:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:45:34,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 1930 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:45:34,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:45:34,297 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-14 01:45:34,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:45:34,298 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:45:34,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097875603] [2022-07-14 01:45:34,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097875603] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:45:34,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:45:34,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:45:34,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517414622] [2022-07-14 01:45:34,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:45:34,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:45:34,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:45:34,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:45:34,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:45:34,300 INFO L87 Difference]: Start difference. First operand 8779 states and 13681 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-14 01:45:34,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:45:34,894 INFO L93 Difference]: Finished difference Result 20473 states and 33126 transitions. [2022-07-14 01:45:34,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:45:34,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 167 [2022-07-14 01:45:34,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:45:34,965 INFO L225 Difference]: With dead ends: 20473 [2022-07-14 01:45:34,966 INFO L226 Difference]: Without dead ends: 11740 [2022-07-14 01:45:35,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:45:35,028 INFO L413 NwaCegarLoop]: 2802 mSDtfsCounter, 2362 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2362 SdHoareTripleChecker+Valid, 5295 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:45:35,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2362 Valid, 5295 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 01:45:35,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11740 states. [2022-07-14 01:45:35,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11740 to 11721. [2022-07-14 01:45:35,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11721 states, 7995 states have (on average 1.396998123827392) internal successors, (11169), 8296 states have internal predecessors, (11169), 3101 states have call successors, (3101), 641 states have call predecessors, (3101), 624 states have return successors, (4296), 2980 states have call predecessors, (4296), 3092 states have call successors, (4296) [2022-07-14 01:45:35,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11721 states to 11721 states and 18566 transitions. [2022-07-14 01:45:35,534 INFO L78 Accepts]: Start accepts. Automaton has 11721 states and 18566 transitions. Word has length 167 [2022-07-14 01:45:35,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:45:35,535 INFO L495 AbstractCegarLoop]: Abstraction has 11721 states and 18566 transitions. [2022-07-14 01:45:35,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-14 01:45:35,536 INFO L276 IsEmpty]: Start isEmpty. Operand 11721 states and 18566 transitions. [2022-07-14 01:45:35,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-14 01:45:35,539 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:45:35,539 INFO L195 NwaCegarLoop]: trace histogram [28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:45:35,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 01:45:35,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:45:35,755 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:45:35,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:45:35,756 INFO L85 PathProgramCache]: Analyzing trace with hash -69869020, now seen corresponding path program 1 times [2022-07-14 01:45:35,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:45:35,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296818348] [2022-07-14 01:45:35,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:45:35,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:45:35,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:45:35,759 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:45:35,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 01:45:38,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:45:38,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 1932 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:45:38,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:45:39,186 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-14 01:45:39,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:45:39,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:45:39,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296818348] [2022-07-14 01:45:39,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296818348] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:45:39,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:45:39,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:45:39,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254628367] [2022-07-14 01:45:39,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:45:39,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:45:39,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:45:39,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:45:39,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:45:39,188 INFO L87 Difference]: Start difference. First operand 11721 states and 18566 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-14 01:45:39,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:45:39,886 INFO L93 Difference]: Finished difference Result 26351 states and 43316 transitions. [2022-07-14 01:45:39,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:45:39,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 168 [2022-07-14 01:45:39,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:45:39,988 INFO L225 Difference]: With dead ends: 26351 [2022-07-14 01:45:39,988 INFO L226 Difference]: Without dead ends: 14676 [2022-07-14 01:45:40,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:45:40,077 INFO L413 NwaCegarLoop]: 2800 mSDtfsCounter, 2363 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2363 SdHoareTripleChecker+Valid, 5293 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:45:40,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2363 Valid, 5293 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 01:45:40,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14676 states. [2022-07-14 01:45:40,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14676 to 14657. [2022-07-14 01:45:40,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14657 states, 9999 states have (on average 1.395839583958396) internal successors, (13957), 10371 states have internal predecessors, (13957), 3873 states have call successors, (3873), 801 states have call predecessors, (3873), 784 states have return successors, (5587), 3733 states have call predecessors, (5587), 3864 states have call successors, (5587) [2022-07-14 01:45:40,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14657 states to 14657 states and 23417 transitions. [2022-07-14 01:45:40,828 INFO L78 Accepts]: Start accepts. Automaton has 14657 states and 23417 transitions. Word has length 168 [2022-07-14 01:45:40,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:45:40,828 INFO L495 AbstractCegarLoop]: Abstraction has 14657 states and 23417 transitions. [2022-07-14 01:45:40,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-14 01:45:40,829 INFO L276 IsEmpty]: Start isEmpty. Operand 14657 states and 23417 transitions. [2022-07-14 01:45:40,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-14 01:45:40,831 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:45:40,832 INFO L195 NwaCegarLoop]: trace histogram [28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:45:40,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 01:45:41,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:45:41,047 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:45:41,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:45:41,048 INFO L85 PathProgramCache]: Analyzing trace with hash -69115209, now seen corresponding path program 1 times [2022-07-14 01:45:41,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:45:41,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702504974] [2022-07-14 01:45:41,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:45:41,049 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:45:41,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:45:41,051 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:45:41,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 01:45:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:45:44,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 1885 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:45:44,122 INFO L286 TraceCheckSpWp]: Computing forward predicates...