./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.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 6d894e86e86b8f1112530aa761fa16c8f0bb95df5df03f6ff46df98ca12f1f95 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:33:41,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:33:41,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:33:41,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:33:41,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:33:41,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:33:41,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:33:41,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:33:41,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:33:41,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:33:41,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:33:41,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:33:41,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:33:41,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:33:41,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:33:41,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:33:41,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:33:41,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:33:41,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:33:41,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:33:41,402 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:33:41,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:33:41,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:33:41,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:33:41,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:33:41,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:33:41,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:33:41,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:33:41,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:33:41,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:33:41,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:33:41,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:33:41,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:33:41,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:33:41,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:33:41,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:33:41,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:33:41,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:33:41,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:33:41,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:33:41,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:33:41,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:33:41,424 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:33:41,454 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:33:41,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:33:41,455 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:33:41,455 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:33:41,456 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:33:41,456 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:33:41,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:33:41,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:33:41,457 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:33:41,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:33:41,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:33:41,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:33:41,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:33:41,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:33:41,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:33:41,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:33:41,459 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:33:41,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:33:41,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:33:41,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:33:41,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:33:41,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:33:41,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:33:41,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:33:41,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:33:41,462 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:33:41,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:33:41,462 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:33:41,462 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:33:41,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:33:41,463 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d894e86e86b8f1112530aa761fa16c8f0bb95df5df03f6ff46df98ca12f1f95 [2022-07-14 00:33:41,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:33:41,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:33:41,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:33:41,738 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:33:41,738 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:33:41,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i [2022-07-14 00:33:41,823 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da573740c/fc32c72061cf47329a4c17f49d676d6e/FLAG8afa562e8 [2022-07-14 00:33:42,550 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:33:42,551 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i [2022-07-14 00:33:42,592 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da573740c/fc32c72061cf47329a4c17f49d676d6e/FLAG8afa562e8 [2022-07-14 00:33:42,824 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da573740c/fc32c72061cf47329a4c17f49d676d6e [2022-07-14 00:33:42,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:33:42,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:33:42,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:33:42,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:33:42,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:33:42,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:33:42" (1/1) ... [2022-07-14 00:33:42,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa19ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:42, skipping insertion in model container [2022-07-14 00:33:42,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:33:42" (1/1) ... [2022-07-14 00:33:42,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:33:42,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:33:43,362 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3724] [2022-07-14 00:33:43,364 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3725-3726] [2022-07-14 00:33:43,674 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i[116557,116570] [2022-07-14 00:33:44,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:33:44,973 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:33:45,045 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3724] [2022-07-14 00:33:45,047 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3725-3726] [2022-07-14 00:33:45,059 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i[116557,116570] [2022-07-14 00:33:45,272 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: ite8872_lpt = ite8872_lpt & 65280U [7432] 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 00:33:45,281 INFO L158 Benchmark]: Toolchain (without parser) took 2451.35ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 67.7MB in the beginning and 62.5MB in the end (delta: 5.2MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. [2022-07-14 00:33:45,282 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 00:33:45,283 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2449.19ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 67.4MB in the beginning and 62.5MB in the end (delta: 4.9MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. [2022-07-14 00:33:45,284 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2449.19ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 67.4MB in the beginning and 62.5MB in the end (delta: 4.9MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: ite8872_lpt = ite8872_lpt & 65280U [7432] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: ite8872_lpt = ite8872_lpt & 65280U [7432]: 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.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 6d894e86e86b8f1112530aa761fa16c8f0bb95df5df03f6ff46df98ca12f1f95 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:33:47,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:33:47,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:33:47,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:33:47,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:33:47,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:33:47,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:33:47,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:33:47,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:33:47,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:33:47,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:33:47,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:33:47,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:33:47,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:33:47,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:33:47,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:33:47,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:33:47,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:33:47,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:33:47,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:33:47,180 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:33:47,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:33:47,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:33:47,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:33:47,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:33:47,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:33:47,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:33:47,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:33:47,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:33:47,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:33:47,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:33:47,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:33:47,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:33:47,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:33:47,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:33:47,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:33:47,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:33:47,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:33:47,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:33:47,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:33:47,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:33:47,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:33:47,198 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 00:33:47,225 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:33:47,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:33:47,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:33:47,226 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:33:47,227 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:33:47,227 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:33:47,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:33:47,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:33:47,228 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:33:47,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:33:47,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:33:47,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:33:47,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:33:47,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:33:47,230 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 00:33:47,237 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 00:33:47,237 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 00:33:47,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:33:47,238 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:33:47,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:33:47,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:33:47,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:33:47,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:33:47,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:33:47,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:33:47,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:33:47,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:33:47,240 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 00:33:47,240 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 00:33:47,240 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:33:47,241 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:33:47,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:33:47,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 00:33:47,241 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d894e86e86b8f1112530aa761fa16c8f0bb95df5df03f6ff46df98ca12f1f95 [2022-07-14 00:33:47,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:33:47,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:33:47,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:33:47,617 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:33:47,617 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:33:47,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i [2022-07-14 00:33:47,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4785138df/649b95aba6544b46868da06a62ba6bc9/FLAGe3a18523a [2022-07-14 00:33:48,510 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:33:48,511 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i [2022-07-14 00:33:48,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4785138df/649b95aba6544b46868da06a62ba6bc9/FLAGe3a18523a [2022-07-14 00:33:49,064 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4785138df/649b95aba6544b46868da06a62ba6bc9 [2022-07-14 00:33:49,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:33:49,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:33:49,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:33:49,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:33:49,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:33:49,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:33:49" (1/1) ... [2022-07-14 00:33:49,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ffb94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:49, skipping insertion in model container [2022-07-14 00:33:49,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:33:49" (1/1) ... [2022-07-14 00:33:49,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:33:49,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:33:49,679 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3724] [2022-07-14 00:33:49,679 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3725-3726] [2022-07-14 00:33:50,046 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i[116557,116570] [2022-07-14 00:33:51,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:33:51,419 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 00:33:51,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:33:51,577 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3724] [2022-07-14 00:33:51,577 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3725-3726] [2022-07-14 00:33:51,596 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i[116557,116570] [2022-07-14 00:33:51,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:33:51,850 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:33:51,977 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3724] [2022-07-14 00:33:51,978 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3725-3726] [2022-07-14 00:33:51,986 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i[116557,116570] [2022-07-14 00:33:52,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:33:52,377 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:33:52,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:52 WrapperNode [2022-07-14 00:33:52,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:33:52,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:33:52,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:33:52,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:33:52,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:52" (1/1) ... [2022-07-14 00:33:52,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:52" (1/1) ... [2022-07-14 00:33:52,705 INFO L137 Inliner]: procedures = 312, calls = 2885, calls flagged for inlining = 153, calls inlined = 124, statements flattened = 5584 [2022-07-14 00:33:52,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:33:52,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:33:52,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:33:52,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:33:52,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:52" (1/1) ... [2022-07-14 00:33:52,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:52" (1/1) ... [2022-07-14 00:33:52,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:52" (1/1) ... [2022-07-14 00:33:52,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:52" (1/1) ... [2022-07-14 00:33:52,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:52" (1/1) ... [2022-07-14 00:33:52,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:52" (1/1) ... [2022-07-14 00:33:52,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:52" (1/1) ... [2022-07-14 00:33:52,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:33:52,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:33:52,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:33:52,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:33:52,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:52" (1/1) ... [2022-07-14 00:33:52,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:33:52,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:33:53,009 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 00:33:53,031 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 00:33:53,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 00:33:53,044 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-07-14 00:33:53,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 00:33:53,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 00:33:53,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:33:53,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 00:33:53,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:33:53,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:33:53,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:33:53,045 INFO L130 BoogieDeclarations]: Found specification of procedure winbond_check [2022-07-14 00:33:53,045 INFO L138 BoogieDeclarations]: Found implementation of procedure winbond_check [2022-07-14 00:33:53,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-14 00:33:53,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-14 00:33:53,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:33:53,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:33:53,046 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-07-14 00:33:53,046 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-07-14 00:33:53,046 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_data_forward [2022-07-14 00:33:53,046 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_data_forward [2022-07-14 00:33:53,046 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_disable_irq [2022-07-14 00:33:53,047 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_disable_irq [2022-07-14 00:33:53,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:33:53,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:33:53,047 INFO L130 BoogieDeclarations]: Found specification of procedure frob_set_mode [2022-07-14 00:33:53,047 INFO L138 BoogieDeclarations]: Found implementation of procedure frob_set_mode [2022-07-14 00:33:53,047 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_read_data [2022-07-14 00:33:53,047 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_read_data [2022-07-14 00:33:53,048 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_save_state [2022-07-14 00:33:53,048 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_save_state [2022-07-14 00:33:53,048 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:33:53,048 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:33:53,048 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_epp_read_data [2022-07-14 00:33:53,048 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_epp_read_data [2022-07-14 00:33:53,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:33:53,049 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 00:33:53,049 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 00:33:53,049 INFO L130 BoogieDeclarations]: Found specification of procedure decode_winbond [2022-07-14 00:33:53,049 INFO L138 BoogieDeclarations]: Found implementation of procedure decode_winbond [2022-07-14 00:33:53,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:33:53,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-14 00:33:53,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-14 00:33:53,050 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-07-14 00:33:53,050 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-07-14 00:33:53,050 INFO L130 BoogieDeclarations]: Found specification of procedure parport_PS2_supported [2022-07-14 00:33:53,050 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_PS2_supported [2022-07-14 00:33:53,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 00:33:53,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 00:33:53,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 00:33:53,051 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_ecp_write_data [2022-07-14 00:33:53,051 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_ecp_write_data [2022-07-14 00:33:53,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:33:53,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 00:33:53,051 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-07-14 00:33:53,051 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-07-14 00:33:53,051 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_write_data [2022-07-14 00:33:53,052 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_write_data [2022-07-14 00:33:53,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:33:53,052 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_write_compat [2022-07-14 00:33:53,052 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_write_compat [2022-07-14 00:33:53,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 00:33:53,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 00:33:53,052 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-14 00:33:53,053 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-14 00:33:53,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 00:33:53,053 INFO L130 BoogieDeclarations]: Found specification of procedure irq_probe_EPP [2022-07-14 00:33:53,053 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_probe_EPP [2022-07-14 00:33:53,053 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-14 00:33:53,053 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-14 00:33:53,053 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_epp_read_addr [2022-07-14 00:33:53,054 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_epp_read_addr [2022-07-14 00:33:53,054 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_unregister_port [2022-07-14 00:33:53,054 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_unregister_port [2022-07-14 00:33:53,054 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-14 00:33:53,054 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-14 00:33:53,054 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-14 00:33:53,054 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-14 00:33:53,055 INFO L130 BoogieDeclarations]: Found specification of procedure parport_parse_dma [2022-07-14 00:33:53,055 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_parse_dma [2022-07-14 00:33:53,055 INFO L130 BoogieDeclarations]: Found specification of procedure clear_epp_timeout [2022-07-14 00:33:53,055 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_epp_timeout [2022-07-14 00:33:53,055 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_ecp_read_data [2022-07-14 00:33:53,055 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_ecp_read_data [2022-07-14 00:33:53,055 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2022-07-14 00:33:53,056 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2022-07-14 00:33:53,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:33:53,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:33:53,056 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_ecp_write_addr [2022-07-14 00:33:53,056 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_ecp_write_addr [2022-07-14 00:33:53,056 INFO L130 BoogieDeclarations]: Found specification of procedure winbond_check2 [2022-07-14 00:33:53,056 INFO L138 BoogieDeclarations]: Found implementation of procedure winbond_check2 [2022-07-14 00:33:53,057 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-14 00:33:53,057 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-14 00:33:53,057 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 00:33:53,057 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 00:33:53,057 INFO L130 BoogieDeclarations]: Found specification of procedure __parport_pc_frob_control [2022-07-14 00:33:53,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __parport_pc_frob_control [2022-07-14 00:33:53,057 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-14 00:33:53,058 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-14 00:33:53,058 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2022-07-14 00:33:53,058 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2022-07-14 00:33:53,058 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2022-07-14 00:33:53,058 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2022-07-14 00:33:53,058 INFO L130 BoogieDeclarations]: Found specification of procedure parport_put_port [2022-07-14 00:33:53,058 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_put_port [2022-07-14 00:33:53,059 INFO L130 BoogieDeclarations]: Found specification of procedure parport_irq_probe [2022-07-14 00:33:53,059 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_irq_probe [2022-07-14 00:33:53,059 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_read_control [2022-07-14 00:33:53,059 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_read_control [2022-07-14 00:33:53,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 00:33:53,059 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 00:33:53,059 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-14 00:33:53,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-14 00:33:53,060 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:33:53,060 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:33:53,060 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_flags [2022-07-14 00:33:53,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_flags [2022-07-14 00:33:53,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 00:33:53,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 00:33:53,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 00:33:53,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 00:33:53,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:33:53,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:33:53,061 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_frob_control [2022-07-14 00:33:53,061 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_frob_control [2022-07-14 00:33:53,061 INFO L130 BoogieDeclarations]: Found specification of procedure frob_econtrol [2022-07-14 00:33:53,062 INFO L138 BoogieDeclarations]: Found implementation of procedure frob_econtrol [2022-07-14 00:33:53,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:33:53,062 INFO L130 BoogieDeclarations]: Found specification of procedure find_free_superio [2022-07-14 00:33:53,062 INFO L138 BoogieDeclarations]: Found implementation of procedure find_free_superio [2022-07-14 00:33:53,062 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_data_reverse [2022-07-14 00:33:53,062 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_data_reverse [2022-07-14 00:33:53,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:33:53,062 INFO L130 BoogieDeclarations]: Found specification of procedure find_superio [2022-07-14 00:33:53,063 INFO L138 BoogieDeclarations]: Found implementation of procedure find_superio [2022-07-14 00:33:53,063 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 00:33:53,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 00:33:53,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:33:53,063 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-14 00:33:53,063 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-14 00:33:53,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 00:33:53,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 00:33:53,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-14 00:33:53,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-14 00:33:53,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 00:33:53,064 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_read_nibble [2022-07-14 00:33:53,064 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_read_nibble [2022-07-14 00:33:53,064 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_init_state [2022-07-14 00:33:53,064 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_init_state [2022-07-14 00:33:53,065 INFO L130 BoogieDeclarations]: Found specification of procedure parport_parse_irq [2022-07-14 00:33:53,065 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_parse_irq [2022-07-14 00:33:53,065 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_enable_irq [2022-07-14 00:33:53,065 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_enable_irq [2022-07-14 00:33:53,065 INFO L130 BoogieDeclarations]: Found specification of procedure parport_parse_param [2022-07-14 00:33:53,065 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_parse_param [2022-07-14 00:33:53,065 INFO L130 BoogieDeclarations]: Found specification of procedure smsc_check [2022-07-14 00:33:53,066 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc_check [2022-07-14 00:33:53,066 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_start [2022-07-14 00:33:53,066 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_start [2022-07-14 00:33:53,066 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_restore_state [2022-07-14 00:33:53,066 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_restore_state [2022-07-14 00:33:53,066 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_epp_write_addr [2022-07-14 00:33:53,066 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_epp_write_addr [2022-07-14 00:33:53,066 INFO L130 BoogieDeclarations]: Found specification of procedure parport_EPP_supported [2022-07-14 00:33:53,067 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_EPP_supported [2022-07-14 00:33:53,067 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_read_status [2022-07-14 00:33:53,067 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_read_status [2022-07-14 00:33:53,067 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_probe_port [2022-07-14 00:33:53,067 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_probe_port [2022-07-14 00:33:53,067 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_write_control [2022-07-14 00:33:53,067 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_write_control [2022-07-14 00:33:53,067 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-14 00:33:53,068 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-14 00:33:53,068 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-14 00:33:53,068 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-14 00:33:53,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 00:33:53,068 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-07-14 00:33:53,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-07-14 00:33:53,068 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_valid [2022-07-14 00:33:53,068 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_valid [2022-07-14 00:33:53,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:33:53,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:33:53,069 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 00:33:53,069 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 00:33:53,855 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:33:53,859 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:33:53,987 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:34:25,153 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:34:25,177 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:34:25,178 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 00:34:25,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:34:25 BoogieIcfgContainer [2022-07-14 00:34:25,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:34:25,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:34:25,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:34:25,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:34:25,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:33:49" (1/3) ... [2022-07-14 00:34:25,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb02da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:34:25, skipping insertion in model container [2022-07-14 00:34:25,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:52" (2/3) ... [2022-07-14 00:34:25,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb02da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:34:25, skipping insertion in model container [2022-07-14 00:34:25,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:34:25" (3/3) ... [2022-07-14 00:34:25,189 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i [2022-07-14 00:34:25,201 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:34:25,201 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:34:25,294 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:34:25,299 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@606bfacc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1bde8c9f [2022-07-14 00:34:25,300 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:34:25,309 INFO L276 IsEmpty]: Start isEmpty. Operand has 1736 states, 1203 states have (on average 1.377389858686617) internal successors, (1657), 1235 states have internal predecessors, (1657), 456 states have call successors, (456), 76 states have call predecessors, (456), 75 states have return successors, (448), 446 states have call predecessors, (448), 448 states have call successors, (448) [2022-07-14 00:34:25,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-14 00:34:25,331 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:34:25,332 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:25,333 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:34:25,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:34:25,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1925553432, now seen corresponding path program 1 times [2022-07-14 00:34:25,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:34:25,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498465235] [2022-07-14 00:34:25,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:34:25,362 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:34:25,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:34:25,365 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 00:34:25,386 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 00:34:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:30,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 4575 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:34:30,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:34:30,902 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-14 00:34:30,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:34:30,903 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:34:30,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498465235] [2022-07-14 00:34:30,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498465235] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:34:30,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:34:30,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:34:30,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959513034] [2022-07-14 00:34:30,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:34:30,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:34:30,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:34:30,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:34:30,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:34:30,955 INFO L87 Difference]: Start difference. First operand has 1736 states, 1203 states have (on average 1.377389858686617) internal successors, (1657), 1235 states have internal predecessors, (1657), 456 states have call successors, (456), 76 states have call predecessors, (456), 75 states have return successors, (448), 446 states have call predecessors, (448), 448 states have call successors, (448) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-14 00:34:31,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:34:31,732 INFO L93 Difference]: Finished difference Result 5118 states and 7682 transitions. [2022-07-14 00:34:31,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:34:31,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 100 [2022-07-14 00:34:31,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:34:31,780 INFO L225 Difference]: With dead ends: 5118 [2022-07-14 00:34:31,780 INFO L226 Difference]: Without dead ends: 3324 [2022-07-14 00:34:31,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 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 00:34:31,819 INFO L413 NwaCegarLoop]: 2980 mSDtfsCounter, 2468 mSDsluCounter, 2501 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2468 SdHoareTripleChecker+Valid, 5481 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:34:31,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2468 Valid, 5481 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 00:34:31,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3324 states. [2022-07-14 00:34:32,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3324 to 3319. [2022-07-14 00:34:32,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3319 states, 2302 states have (on average 1.368375325803649) internal successors, (3150), 2342 states have internal predecessors, (3150), 868 states have call successors, (868), 149 states have call predecessors, (868), 148 states have return successors, (867), 862 states have call predecessors, (867), 867 states have call successors, (867) [2022-07-14 00:34:32,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3319 states to 3319 states and 4885 transitions. [2022-07-14 00:34:32,124 INFO L78 Accepts]: Start accepts. Automaton has 3319 states and 4885 transitions. Word has length 100 [2022-07-14 00:34:32,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:34:32,126 INFO L495 AbstractCegarLoop]: Abstraction has 3319 states and 4885 transitions. [2022-07-14 00:34:32,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-14 00:34:32,127 INFO L276 IsEmpty]: Start isEmpty. Operand 3319 states and 4885 transitions. [2022-07-14 00:34:32,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-14 00:34:32,138 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:34:32,139 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:32,317 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 00:34:32,355 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 00:34:32,356 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:34:32,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:34:32,356 INFO L85 PathProgramCache]: Analyzing trace with hash 900359696, now seen corresponding path program 1 times [2022-07-14 00:34:32,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:34:32,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641136263] [2022-07-14 00:34:32,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:34:32,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:34:32,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:34:32,366 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 00:34:32,368 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 00:34:37,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:38,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 4704 conjuncts, 34 conjunts are in the unsatisfiable core [2022-07-14 00:34:38,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:34:38,421 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:34:38,422 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:34:38,603 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:34:38,604 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:34:38,769 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:34:38,769 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:34:38,943 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:34:38,943 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:34:39,104 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:34:39,105 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:34:39,258 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:34:39,258 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:34:39,415 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:34:39,416 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:34:39,568 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:34:39,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:34:39,723 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:34:39,723 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:34:39,879 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:34:39,880 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:34:40,037 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:34:40,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:34:40,204 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:34:40,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:34:40,383 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:34:40,384 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:34:40,544 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:34:40,545 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:34:41,342 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:34:41,343 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2022-07-14 00:34:41,397 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-14 00:34:41,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:34:41,397 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:34:41,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641136263] [2022-07-14 00:34:41,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1641136263] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:34:41,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:34:41,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:34:41,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505107781] [2022-07-14 00:34:41,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:34:41,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:34:41,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:34:41,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:34:41,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:34:41,400 INFO L87 Difference]: Start difference. First operand 3319 states and 4885 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-14 00:34:48,459 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 00:34:58,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:00,792 WARN L534 Checker$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 00:35:03,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:05,122 WARN L534 Checker$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 00:35:07,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:12,916 WARN L534 Checker$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 00:35:14,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:18,653 WARN L534 Checker$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 00:35:22,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:24,431 WARN L534 Checker$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 00:35:29,618 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 00:35:34,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:35:34,874 INFO L93 Difference]: Finished difference Result 8365 states and 12442 transitions. [2022-07-14 00:35:34,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:35:34,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2022-07-14 00:35:34,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:35:34,923 INFO L225 Difference]: With dead ends: 8365 [2022-07-14 00:35:34,923 INFO L226 Difference]: Without dead ends: 5077 [2022-07-14 00:35:34,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:35:34,943 INFO L413 NwaCegarLoop]: 2530 mSDtfsCounter, 1483 mSDsluCounter, 4844 mSDsCounter, 0 mSdLazyCounter, 2899 mSolverCounterSat, 889 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 7374 SdHoareTripleChecker+Invalid, 3797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 889 IncrementalHoareTripleChecker+Valid, 2899 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:35:34,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1653 Valid, 7374 Invalid, 3797 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [889 Valid, 2899 Invalid, 9 Unknown, 0 Unchecked, 52.7s Time] [2022-07-14 00:35:34,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5077 states. [2022-07-14 00:35:35,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5077 to 4929. [2022-07-14 00:35:35,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4929 states, 3395 states have (on average 1.3820324005891016) internal successors, (4692), 3515 states have internal predecessors, (4692), 1283 states have call successors, (1283), 253 states have call predecessors, (1283), 250 states have return successors, (1380), 1220 states have call predecessors, (1380), 1282 states have call successors, (1380) [2022-07-14 00:35:35,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4929 states to 4929 states and 7355 transitions. [2022-07-14 00:35:35,219 INFO L78 Accepts]: Start accepts. Automaton has 4929 states and 7355 transitions. Word has length 121 [2022-07-14 00:35:35,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:35:35,220 INFO L495 AbstractCegarLoop]: Abstraction has 4929 states and 7355 transitions. [2022-07-14 00:35:35,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-14 00:35:35,221 INFO L276 IsEmpty]: Start isEmpty. Operand 4929 states and 7355 transitions. [2022-07-14 00:35:35,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-14 00:35:35,229 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:35:35,229 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:35:35,338 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 00:35:35,451 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 00:35:35,452 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:35:35,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:35:35,452 INFO L85 PathProgramCache]: Analyzing trace with hash -808022057, now seen corresponding path program 1 times [2022-07-14 00:35:35,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:35:35,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [872696447] [2022-07-14 00:35:35,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:35,457 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:35:35,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:35:35,458 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 00:35:35,460 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 00:35:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:41,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 4710 conjuncts, 34 conjunts are in the unsatisfiable core [2022-07-14 00:35:41,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:35:41,415 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:35:41,415 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:35:41,583 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:35:41,583 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:35:41,715 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:35:41,715 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:35:41,862 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:35:41,862 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:35:41,988 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:35:41,989 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:35:42,118 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:35:42,119 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:35:42,281 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:35:42,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:35:42,426 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:35:42,427 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:35:42,546 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:35:42,546 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:35:42,688 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:35:42,688 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:35:42,851 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:35:42,852 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:35:42,979 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:35:42,979 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:35:43,122 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:35:43,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:35:43,262 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:35:43,263 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-14 00:35:44,401 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 00:35:44,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2022-07-14 00:35:44,445 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-14 00:35:44,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:35:44,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:35:44,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [872696447] [2022-07-14 00:35:44,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [872696447] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:35:44,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:35:44,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:35:44,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949678920] [2022-07-14 00:35:44,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:35:44,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:35:44,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:35:44,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:35:44,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:35:44,449 INFO L87 Difference]: Start difference. First operand 4929 states and 7355 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-14 00:35:51,061 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 00:35:58,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:01,062 WARN L534 Checker$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 00:36:03,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:04,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:08,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:11,759 WARN L534 Checker$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 00:36:13,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:17,581 WARN L534 Checker$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 00:36:24,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:26,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:29,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:31,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:34,096 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 00:36:38,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:36:38,488 INFO L93 Difference]: Finished difference Result 9961 states and 14886 transitions. [2022-07-14 00:36:38,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:36:38,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 124 [2022-07-14 00:36:38,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:36:38,533 INFO L225 Difference]: With dead ends: 9961 [2022-07-14 00:36:38,533 INFO L226 Difference]: Without dead ends: 5063 [2022-07-14 00:36:38,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:36:38,560 INFO L413 NwaCegarLoop]: 2770 mSDtfsCounter, 1373 mSDsluCounter, 5134 mSDsCounter, 0 mSdLazyCounter, 2915 mSolverCounterSat, 827 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 7904 SdHoareTripleChecker+Invalid, 3751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 827 IncrementalHoareTripleChecker+Valid, 2915 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:36:38,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1543 Valid, 7904 Invalid, 3751 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [827 Valid, 2915 Invalid, 9 Unknown, 0 Unchecked, 53.3s Time] [2022-07-14 00:36:38,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5063 states. [2022-07-14 00:36:38,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5063 to 4915. [2022-07-14 00:36:38,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4915 states, 3383 states have (on average 1.3810227608631391) internal successors, (4672), 3503 states have internal predecessors, (4672), 1281 states have call successors, (1281), 253 states have call predecessors, (1281), 250 states have return successors, (1376), 1218 states have call predecessors, (1376), 1280 states have call successors, (1376) [2022-07-14 00:36:38,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4915 states to 4915 states and 7329 transitions. [2022-07-14 00:36:38,822 INFO L78 Accepts]: Start accepts. Automaton has 4915 states and 7329 transitions. Word has length 124 [2022-07-14 00:36:38,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:36:38,823 INFO L495 AbstractCegarLoop]: Abstraction has 4915 states and 7329 transitions. [2022-07-14 00:36:38,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-14 00:36:38,824 INFO L276 IsEmpty]: Start isEmpty. Operand 4915 states and 7329 transitions. [2022-07-14 00:36:38,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-14 00:36:38,829 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:36:38,829 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:36:38,973 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 00:36:39,051 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 00:36:39,052 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:36:39,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:36:39,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1045851496, now seen corresponding path program 1 times [2022-07-14 00:36:39,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:36:39,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314028225] [2022-07-14 00:36:39,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:36:39,057 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:36:39,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:36:39,058 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 00:36:39,059 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 00:36:44,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:44,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 4785 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 00:36:44,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:36:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-14 00:36:44,683 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:36:44,684 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:36:44,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314028225] [2022-07-14 00:36:44,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314028225] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:36:44,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:36:44,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:36:44,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29241502] [2022-07-14 00:36:44,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:36:44,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:36:44,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:36:44,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:36:44,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:36:44,686 INFO L87 Difference]: Start difference. First operand 4915 states and 7329 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-14 00:36:45,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:36:45,377 INFO L93 Difference]: Finished difference Result 10968 states and 16540 transitions. [2022-07-14 00:36:45,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 00:36:45,378 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) Word has length 134 [2022-07-14 00:36:45,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:36:45,422 INFO L225 Difference]: With dead ends: 10968 [2022-07-14 00:36:45,423 INFO L226 Difference]: Without dead ends: 6084 [2022-07-14 00:36:45,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:36:45,454 INFO L413 NwaCegarLoop]: 3331 mSDtfsCounter, 648 mSDsluCounter, 15946 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 19277 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:36:45,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 19277 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 00:36:45,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6084 states. [2022-07-14 00:36:45,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6084 to 4939. [2022-07-14 00:36:45,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4939 states, 3399 states have (on average 1.3792291850544278) internal successors, (4688), 3521 states have internal predecessors, (4688), 1281 states have call successors, (1281), 253 states have call predecessors, (1281), 258 states have return successors, (1392), 1224 states have call predecessors, (1392), 1280 states have call successors, (1392) [2022-07-14 00:36:45,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4939 states to 4939 states and 7361 transitions. [2022-07-14 00:36:45,822 INFO L78 Accepts]: Start accepts. Automaton has 4939 states and 7361 transitions. Word has length 134 [2022-07-14 00:36:45,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:36:45,824 INFO L495 AbstractCegarLoop]: Abstraction has 4939 states and 7361 transitions. [2022-07-14 00:36:45,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-14 00:36:45,825 INFO L276 IsEmpty]: Start isEmpty. Operand 4939 states and 7361 transitions. [2022-07-14 00:36:45,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-14 00:36:45,829 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:36:45,830 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:36:45,980 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 00:36:46,043 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 00:36:46,043 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:36:46,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:36:46,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1068877759, now seen corresponding path program 1 times [2022-07-14 00:36:46,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:36:46,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736204525] [2022-07-14 00:36:46,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:36:46,048 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:36:46,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:36:46,050 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 00:36:46,051 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 00:36:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:51,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 4793 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 00:36:51,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:36:51,921 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-14 00:36:51,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:36:51,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:36:51,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736204525] [2022-07-14 00:36:51,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1736204525] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:36:51,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:36:51,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:36:51,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98832460] [2022-07-14 00:36:51,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:36:51,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:36:51,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:36:51,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:36:51,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:36:51,925 INFO L87 Difference]: Start difference. First operand 4939 states and 7361 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-14 00:36:52,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:36:52,337 INFO L93 Difference]: Finished difference Result 11744 states and 17845 transitions. [2022-07-14 00:36:52,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:36:52,338 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) Word has length 138 [2022-07-14 00:36:52,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:36:52,449 INFO L225 Difference]: With dead ends: 11744 [2022-07-14 00:36:52,449 INFO L226 Difference]: Without dead ends: 6836 [2022-07-14 00:36:52,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:36:52,467 INFO L413 NwaCegarLoop]: 3438 mSDtfsCounter, 632 mSDsluCounter, 16392 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 19830 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:36:52,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 19830 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 00:36:52,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6836 states. [2022-07-14 00:36:52,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6836 to 4947. [2022-07-14 00:36:52,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4947 states, 3407 states have (on average 1.3783387144115058) internal successors, (4696), 3525 states have internal predecessors, (4696), 1281 states have call successors, (1281), 253 states have call predecessors, (1281), 258 states have return successors, (1392), 1228 states have call predecessors, (1392), 1280 states have call successors, (1392) [2022-07-14 00:36:52,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4947 states to 4947 states and 7369 transitions. [2022-07-14 00:36:52,797 INFO L78 Accepts]: Start accepts. Automaton has 4947 states and 7369 transitions. Word has length 138 [2022-07-14 00:36:52,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:36:52,798 INFO L495 AbstractCegarLoop]: Abstraction has 4947 states and 7369 transitions. [2022-07-14 00:36:52,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-14 00:36:52,798 INFO L276 IsEmpty]: Start isEmpty. Operand 4947 states and 7369 transitions. [2022-07-14 00:36:52,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-14 00:36:52,803 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:36:52,803 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:36:52,947 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 00:36:53,023 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 00:36:53,024 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:36:53,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:36:53,024 INFO L85 PathProgramCache]: Analyzing trace with hash 416898790, now seen corresponding path program 1 times [2022-07-14 00:36:53,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:36:53,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432512109] [2022-07-14 00:36:53,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:36:53,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:36:53,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:36:53,030 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 00:36:53,031 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 00:36:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:58,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 4797 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-14 00:36:59,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:36:59,070 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 22 treesize of output 14 [2022-07-14 00:36:59,078 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 18 treesize of output 10 [2022-07-14 00:36:59,445 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-14 00:36:59,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:36:59,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:36:59,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432512109] [2022-07-14 00:36:59,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432512109] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:36:59,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:36:59,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 00:36:59,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171608312] [2022-07-14 00:36:59,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:36:59,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 00:36:59,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:36:59,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 00:36:59,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:36:59,448 INFO L87 Difference]: Start difference. First operand 4947 states and 7369 transitions. Second operand has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 00:37:02,892 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 00:37:05,342 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:07,383 WARN L534 Checker$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 00:37:09,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:11,503 WARN L534 Checker$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 00:37:13,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:16,475 WARN L534 Checker$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 00:37:18,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:20,434 WARN L534 Checker$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 00:37:21,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:37:21,240 INFO L93 Difference]: Finished difference Result 9859 states and 14689 transitions. [2022-07-14 00:37:21,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 00:37:21,251 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 139 [2022-07-14 00:37:21,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:37:21,290 INFO L225 Difference]: With dead ends: 9859 [2022-07-14 00:37:21,290 INFO L226 Difference]: Without dead ends: 4943 [2022-07-14 00:37:21,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-14 00:37:21,316 INFO L413 NwaCegarLoop]: 2496 mSDtfsCounter, 21 mSDsluCounter, 14813 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 17309 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:37:21,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 17309 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 8 Unknown, 0 Unchecked, 21.4s Time] [2022-07-14 00:37:21,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4943 states. [2022-07-14 00:37:21,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4943 to 4943. [2022-07-14 00:37:21,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4943 states, 3403 states have (on average 1.3787834263884808) internal successors, (4692), 3523 states have internal predecessors, (4692), 1281 states have call successors, (1281), 253 states have call predecessors, (1281), 258 states have return successors, (1388), 1226 states have call predecessors, (1388), 1280 states have call successors, (1388) [2022-07-14 00:37:21,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4943 states to 4943 states and 7361 transitions. [2022-07-14 00:37:21,576 INFO L78 Accepts]: Start accepts. Automaton has 4943 states and 7361 transitions. Word has length 139 [2022-07-14 00:37:21,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:37:21,577 INFO L495 AbstractCegarLoop]: Abstraction has 4943 states and 7361 transitions. [2022-07-14 00:37:21,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 00:37:21,577 INFO L276 IsEmpty]: Start isEmpty. Operand 4943 states and 7361 transitions. [2022-07-14 00:37:21,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-14 00:37:21,602 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:37:21,602 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:37:21,773 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 00:37:21,803 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 00:37:21,804 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:37:21,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:37:21,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1098571227, now seen corresponding path program 1 times [2022-07-14 00:37:21,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:37:21,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [820139320] [2022-07-14 00:37:21,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:37:21,808 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:37:21,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:37:21,809 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 00:37:21,810 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 00:37:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:27,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 4793 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 00:37:27,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:37:27,655 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-14 00:37:27,655 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:37:27,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:37:27,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [820139320] [2022-07-14 00:37:27,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [820139320] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:37:27,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:37:27,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:37:27,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527084889] [2022-07-14 00:37:27,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:37:27,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:37:27,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:37:27,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:37:27,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:37:27,657 INFO L87 Difference]: Start difference. First operand 4943 states and 7361 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-14 00:37:27,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:37:27,972 INFO L93 Difference]: Finished difference Result 11724 states and 17791 transitions. [2022-07-14 00:37:27,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:37:27,973 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) Word has length 138 [2022-07-14 00:37:27,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:37:28,010 INFO L225 Difference]: With dead ends: 11724 [2022-07-14 00:37:28,010 INFO L226 Difference]: Without dead ends: 6812 [2022-07-14 00:37:28,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:37:28,033 INFO L413 NwaCegarLoop]: 3387 mSDtfsCounter, 618 mSDsluCounter, 16172 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 19559 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:37:28,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 19559 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:37:28,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6812 states. [2022-07-14 00:37:28,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6812 to 4963. [2022-07-14 00:37:28,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4963 states, 3419 states have (on average 1.377010821877742) internal successors, (4708), 3535 states have internal predecessors, (4708), 1281 states have call successors, (1281), 253 states have call predecessors, (1281), 262 states have return successors, (1394), 1234 states have call predecessors, (1394), 1280 states have call successors, (1394) [2022-07-14 00:37:28,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4963 states to 4963 states and 7383 transitions. [2022-07-14 00:37:28,347 INFO L78 Accepts]: Start accepts. Automaton has 4963 states and 7383 transitions. Word has length 138 [2022-07-14 00:37:28,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:37:28,348 INFO L495 AbstractCegarLoop]: Abstraction has 4963 states and 7383 transitions. [2022-07-14 00:37:28,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-14 00:37:28,348 INFO L276 IsEmpty]: Start isEmpty. Operand 4963 states and 7383 transitions. [2022-07-14 00:37:28,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-14 00:37:28,354 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:37:28,354 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:37:28,511 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 00:37:28,579 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 00:37:28,580 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:37:28,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:37:28,580 INFO L85 PathProgramCache]: Analyzing trace with hash -76090973, now seen corresponding path program 1 times [2022-07-14 00:37:28,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:37:28,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855712593] [2022-07-14 00:37:28,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:37:28,584 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:37:28,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:37:28,585 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 00:37:28,586 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 00:37:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:34,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 4797 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-14 00:37:34,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:37:34,262 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 22 treesize of output 14 [2022-07-14 00:37:34,270 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 18 treesize of output 10 [2022-07-14 00:37:34,640 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-14 00:37:34,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:37:34,640 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:37:34,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855712593] [2022-07-14 00:37:34,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1855712593] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:37:34,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:37:34,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 00:37:34,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233260069] [2022-07-14 00:37:34,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:37:34,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 00:37:34,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:37:34,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 00:37:34,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:37:34,642 INFO L87 Difference]: Start difference. First operand 4963 states and 7383 transitions. Second operand has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 00:37:38,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:40,415 WARN L534 Checker$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 00:37:42,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:44,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:45,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:47,567 WARN L534 Checker$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 00:37:50,062 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 []