./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.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 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 01:34:09,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 01:34:09,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 01:34:09,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 01:34:09,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 01:34:09,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 01:34:09,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 01:34:09,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 01:34:09,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 01:34:09,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 01:34:09,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 01:34:09,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 01:34:09,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 01:34:09,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 01:34:09,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 01:34:09,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 01:34:09,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 01:34:09,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 01:34:09,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 01:34:09,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 01:34:09,170 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 01:34:09,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 01:34:09,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 01:34:09,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 01:34:09,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 01:34:09,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 01:34:09,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 01:34:09,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 01:34:09,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 01:34:09,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 01:34:09,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 01:34:09,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 01:34:09,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 01:34:09,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 01:34:09,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 01:34:09,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 01:34:09,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 01:34:09,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 01:34:09,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 01:34:09,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 01:34:09,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 01:34:09,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 01:34:09,188 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 01:34:09,213 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 01:34:09,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 01:34:09,214 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 01:34:09,214 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 01:34:09,215 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 01:34:09,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 01:34:09,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 01:34:09,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 01:34:09,215 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 01:34:09,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 01:34:09,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 01:34:09,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 01:34:09,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 01:34:09,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 01:34:09,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 01:34:09,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 01:34:09,217 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 01:34:09,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 01:34:09,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 01:34:09,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 01:34:09,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 01:34:09,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:34:09,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 01:34:09,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 01:34:09,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 01:34:09,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 01:34:09,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 01:34:09,219 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 01:34:09,219 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 01:34:09,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 01:34:09,219 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 [2022-07-23 01:34:09,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 01:34:09,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 01:34:09,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 01:34:09,444 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 01:34:09,445 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 01:34:09,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-23 01:34:09,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3ee9e43f/e6e7e34d49e44f958f5a0b40d45dcc41/FLAGce8879109 [2022-07-23 01:34:10,171 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 01:34:10,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-23 01:34:10,227 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3ee9e43f/e6e7e34d49e44f958f5a0b40d45dcc41/FLAGce8879109 [2022-07-23 01:34:10,543 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3ee9e43f/e6e7e34d49e44f958f5a0b40d45dcc41 [2022-07-23 01:34:10,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 01:34:10,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 01:34:10,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 01:34:10,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 01:34:10,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 01:34:10,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:34:10" (1/1) ... [2022-07-23 01:34:10,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c0164b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:10, skipping insertion in model container [2022-07-23 01:34:10,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:34:10" (1/1) ... [2022-07-23 01:34:10,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 01:34:10,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:34:11,945 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2022-07-23 01:34:11,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:34:12,038 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 01:34:12,271 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: cfgpmcsr = cfgpmcsr & 4294967039U [8330] 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:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) 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) [2022-07-23 01:34:12,277 INFO L158 Benchmark]: Toolchain (without parser) took 1728.77ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 90.4MB in the beginning and 87.2MB in the end (delta: 3.2MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-07-23 01:34:12,278 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory was 51.0MB in the beginning and 51.0MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 01:34:12,279 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1726.99ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 90.4MB in the beginning and 87.2MB in the end (delta: 3.2MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-07-23 01:34:12,281 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory was 51.0MB in the beginning and 51.0MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1726.99ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 90.4MB in the beginning and 87.2MB in the end (delta: 3.2MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: cfgpmcsr = cfgpmcsr & 4294967039U [8330] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: cfgpmcsr = cfgpmcsr & 4294967039U [8330]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.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 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 01:34:13,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 01:34:13,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 01:34:13,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 01:34:13,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 01:34:13,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 01:34:13,879 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 01:34:13,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 01:34:13,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 01:34:13,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 01:34:13,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 01:34:13,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 01:34:13,893 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 01:34:13,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 01:34:13,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 01:34:13,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 01:34:13,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 01:34:13,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 01:34:13,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 01:34:13,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 01:34:13,916 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 01:34:13,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 01:34:13,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 01:34:13,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 01:34:13,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 01:34:13,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 01:34:13,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 01:34:13,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 01:34:13,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 01:34:13,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 01:34:13,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 01:34:13,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 01:34:13,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 01:34:13,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 01:34:13,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 01:34:13,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 01:34:13,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 01:34:13,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 01:34:13,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 01:34:13,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 01:34:13,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 01:34:13,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 01:34:13,937 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 01:34:13,970 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 01:34:13,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 01:34:13,971 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 01:34:13,971 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 01:34:13,971 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 01:34:13,971 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 01:34:13,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 01:34:13,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 01:34:13,972 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 01:34:13,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 01:34:13,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 01:34:13,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 01:34:13,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 01:34:13,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 01:34:13,973 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 01:34:13,973 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 01:34:13,979 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 01:34:13,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 01:34:13,980 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 01:34:13,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 01:34:13,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 01:34:13,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 01:34:13,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 01:34:13,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:34:13,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 01:34:13,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 01:34:13,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 01:34:13,982 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 01:34:13,982 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 01:34:13,982 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 01:34:13,982 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 01:34:13,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 01:34:13,983 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 01:34:13,983 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 [2022-07-23 01:34:14,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 01:34:14,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 01:34:14,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 01:34:14,279 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 01:34:14,280 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 01:34:14,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-23 01:34:14,334 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94a718217/4007e1d5ddbe4d1fbf9f3bac454b0876/FLAG48d2fb295 [2022-07-23 01:34:15,060 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 01:34:15,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-23 01:34:15,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94a718217/4007e1d5ddbe4d1fbf9f3bac454b0876/FLAG48d2fb295 [2022-07-23 01:34:15,153 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94a718217/4007e1d5ddbe4d1fbf9f3bac454b0876 [2022-07-23 01:34:15,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 01:34:15,156 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 01:34:15,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 01:34:15,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 01:34:15,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 01:34:15,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:34:15" (1/1) ... [2022-07-23 01:34:15,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23f8f12e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:15, skipping insertion in model container [2022-07-23 01:34:15,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:34:15" (1/1) ... [2022-07-23 01:34:15,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 01:34:15,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:34:16,740 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2022-07-23 01:34:16,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:34:16,848 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 01:34:16,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:34:17,152 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2022-07-23 01:34:17,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:34:17,177 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 01:34:17,393 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2022-07-23 01:34:17,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:34:17,534 INFO L208 MainTranslator]: Completed translation [2022-07-23 01:34:17,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:17 WrapperNode [2022-07-23 01:34:17,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 01:34:17,536 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 01:34:17,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 01:34:17,536 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 01:34:17,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:17" (1/1) ... [2022-07-23 01:34:17,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:17" (1/1) ... [2022-07-23 01:34:17,740 INFO L137 Inliner]: procedures = 283, calls = 1587, calls flagged for inlining = 149, calls inlined = 146, statements flattened = 4146 [2022-07-23 01:34:17,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 01:34:17,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 01:34:17,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 01:34:17,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 01:34:17,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:17" (1/1) ... [2022-07-23 01:34:17,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:17" (1/1) ... [2022-07-23 01:34:17,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:17" (1/1) ... [2022-07-23 01:34:17,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:17" (1/1) ... [2022-07-23 01:34:17,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:17" (1/1) ... [2022-07-23 01:34:17,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:17" (1/1) ... [2022-07-23 01:34:17,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:17" (1/1) ... [2022-07-23 01:34:18,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 01:34:18,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 01:34:18,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 01:34:18,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 01:34:18,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:17" (1/1) ... [2022-07-23 01:34:18,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:34:18,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:34:18,053 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) [2022-07-23 01:34:18,062 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 [2022-07-23 01:34:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2022-07-23 01:34:18,086 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2022-07-23 01:34:18,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 01:34:18,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-23 01:34:18,086 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-07-23 01:34:18,086 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-07-23 01:34:18,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2022-07-23 01:34:18,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2022-07-23 01:34:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 01:34:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-23 01:34:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-23 01:34:18,087 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-23 01:34:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 01:34:18,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 01:34:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 01:34:18,088 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 01:34:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-23 01:34:18,088 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-23 01:34:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-23 01:34:18,088 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-23 01:34:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-23 01:34:18,088 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-23 01:34:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-23 01:34:18,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-23 01:34:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 01:34:18,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 01:34:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2022-07-23 01:34:18,089 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2022-07-23 01:34:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 01:34:18,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 01:34:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-23 01:34:18,090 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-23 01:34:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-23 01:34:18,090 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-23 01:34:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-23 01:34:18,091 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-23 01:34:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-23 01:34:18,091 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-23 01:34:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2022-07-23 01:34:18,091 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2022-07-23 01:34:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-23 01:34:18,092 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-23 01:34:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 01:34:18,092 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 01:34:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-23 01:34:18,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-23 01:34:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-23 01:34:18,093 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-23 01:34:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-23 01:34:18,093 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-23 01:34:18,094 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-23 01:34:18,094 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-23 01:34:18,094 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2022-07-23 01:34:18,094 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2022-07-23 01:34:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-23 01:34:18,095 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-23 01:34:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-07-23 01:34:18,095 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-07-23 01:34:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-23 01:34:18,096 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-23 01:34:18,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 01:34:18,096 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-23 01:34:18,096 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-23 01:34:18,097 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-23 01:34:18,097 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-23 01:34:18,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 01:34:18,097 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-23 01:34:18,097 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-23 01:34:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-23 01:34:18,098 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-23 01:34:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-23 01:34:18,098 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-23 01:34:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-23 01:34:18,098 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-23 01:34:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-23 01:34:18,098 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-23 01:34:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-23 01:34:18,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-23 01:34:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2022-07-23 01:34:18,099 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2022-07-23 01:34:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2022-07-23 01:34:18,099 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2022-07-23 01:34:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-23 01:34:18,100 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-23 01:34:18,100 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2022-07-23 01:34:18,100 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2022-07-23 01:34:18,100 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2022-07-23 01:34:18,101 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2022-07-23 01:34:18,101 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-23 01:34:18,101 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-23 01:34:18,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-23 01:34:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 01:34:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-23 01:34:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 01:34:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 01:34:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 01:34:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-23 01:34:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 01:34:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 01:34:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-23 01:34:18,103 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-23 01:34:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-23 01:34:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-23 01:34:18,104 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-23 01:34:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-23 01:34:18,104 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-23 01:34:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2022-07-23 01:34:18,104 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2022-07-23 01:34:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-23 01:34:18,105 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-23 01:34:18,105 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2022-07-23 01:34:18,106 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2022-07-23 01:34:18,107 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-23 01:34:18,107 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-23 01:34:18,107 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-23 01:34:18,108 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-23 01:34:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-23 01:34:18,109 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-23 01:34:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2022-07-23 01:34:18,109 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2022-07-23 01:34:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2022-07-23 01:34:18,115 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2022-07-23 01:34:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-07-23 01:34:18,115 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-07-23 01:34:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-23 01:34:18,115 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-23 01:34:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-23 01:34:18,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-23 01:34:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-23 01:34:18,116 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-23 01:34:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-23 01:34:18,116 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-23 01:34:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-23 01:34:18,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-23 01:34:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 01:34:18,116 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 01:34:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_resume [2022-07-23 01:34:18,116 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_resume [2022-07-23 01:34:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-23 01:34:18,117 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-23 01:34:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2022-07-23 01:34:18,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2022-07-23 01:34:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-23 01:34:18,117 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-23 01:34:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2022-07-23 01:34:18,117 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2022-07-23 01:34:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 01:34:18,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 01:34:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2022-07-23 01:34:18,118 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2022-07-23 01:34:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-23 01:34:18,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-23 01:34:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_config [2022-07-23 01:34:18,118 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_config [2022-07-23 01:34:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 01:34:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-07-23 01:34:18,119 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-07-23 01:34:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-23 01:34:18,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-23 01:34:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2022-07-23 01:34:18,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2022-07-23 01:34:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 01:34:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2022-07-23 01:34:18,120 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2022-07-23 01:34:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 01:34:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-23 01:34:18,120 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-23 01:34:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-23 01:34:18,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-23 01:34:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-07-23 01:34:18,120 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-07-23 01:34:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-23 01:34:18,121 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-23 01:34:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2022-07-23 01:34:18,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2022-07-23 01:34:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2022-07-23 01:34:18,121 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2022-07-23 01:34:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-23 01:34:18,121 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-23 01:34:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ioctl [2022-07-23 01:34:18,122 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ioctl [2022-07-23 01:34:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-23 01:34:18,122 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-23 01:34:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-07-23 01:34:18,122 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-07-23 01:34:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 01:34:18,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 01:34:18,884 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 01:34:18,887 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 01:34:19,091 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 01:34:47,523 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 01:34:47,535 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 01:34:47,535 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 01:34:47,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:34:47 BoogieIcfgContainer [2022-07-23 01:34:47,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 01:34:47,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 01:34:47,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 01:34:47,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 01:34:47,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:34:15" (1/3) ... [2022-07-23 01:34:47,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488452ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:34:47, skipping insertion in model container [2022-07-23 01:34:47,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:17" (2/3) ... [2022-07-23 01:34:47,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488452ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:34:47, skipping insertion in model container [2022-07-23 01:34:47,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:34:47" (3/3) ... [2022-07-23 01:34:47,545 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-23 01:34:47,555 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 01:34:47,555 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 01:34:47,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 01:34:47,661 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@b894431, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@57f40ab0 [2022-07-23 01:34:47,662 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 01:34:47,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 1706 states, 1176 states have (on average 1.3265306122448979) internal successors, (1560), 1200 states have internal predecessors, (1560), 446 states have call successors, (446), 83 states have call predecessors, (446), 82 states have return successors, (439), 435 states have call predecessors, (439), 439 states have call successors, (439) [2022-07-23 01:34:47,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-23 01:34:47,705 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:34:47,706 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:34:47,706 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:34:47,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:34:47,711 INFO L85 PathProgramCache]: Analyzing trace with hash -276937392, now seen corresponding path program 1 times [2022-07-23 01:34:47,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:34:47,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1387667855] [2022-07-23 01:34:47,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:34:47,727 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:34:47,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:34:47,730 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) [2022-07-23 01:34:47,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-23 01:34:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:34:49,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 01:34:49,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:34:49,247 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-07-23 01:34:49,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:34:49,248 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:34:49,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1387667855] [2022-07-23 01:34:49,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1387667855] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:34:49,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:34:49,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 01:34:49,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309353047] [2022-07-23 01:34:49,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:34:49,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 01:34:49,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:34:49,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 01:34:49,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 01:34:49,275 INFO L87 Difference]: Start difference. First operand has 1706 states, 1176 states have (on average 1.3265306122448979) internal successors, (1560), 1200 states have internal predecessors, (1560), 446 states have call successors, (446), 83 states have call predecessors, (446), 82 states have return successors, (439), 435 states have call predecessors, (439), 439 states have call successors, (439) Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-23 01:34:49,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:34:49,567 INFO L93 Difference]: Finished difference Result 3411 states and 4941 transitions. [2022-07-23 01:34:49,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 01:34:49,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 178 [2022-07-23 01:34:49,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:34:49,597 INFO L225 Difference]: With dead ends: 3411 [2022-07-23 01:34:49,597 INFO L226 Difference]: Without dead ends: 1687 [2022-07-23 01:34:49,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 01:34:49,614 INFO L413 NwaCegarLoop]: 2437 mSDtfsCounter, 3 mSDsluCounter, 4865 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7302 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:34:49,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7302 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:34:49,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2022-07-23 01:34:49,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1687. [2022-07-23 01:34:49,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1166 states have (on average 1.316466552315609) internal successors, (1535), 1181 states have internal predecessors, (1535), 439 states have call successors, (439), 82 states have call predecessors, (439), 81 states have return successors, (438), 434 states have call predecessors, (438), 438 states have call successors, (438) [2022-07-23 01:34:49,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2412 transitions. [2022-07-23 01:34:49,755 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2412 transitions. Word has length 178 [2022-07-23 01:34:49,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:34:49,757 INFO L495 AbstractCegarLoop]: Abstraction has 1687 states and 2412 transitions. [2022-07-23 01:34:49,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-23 01:34:49,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2412 transitions. [2022-07-23 01:34:49,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-07-23 01:34:49,766 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:34:49,766 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:34:49,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-23 01:34:49,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:34:49,980 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:34:49,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:34:49,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1058624020, now seen corresponding path program 1 times [2022-07-23 01:34:49,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:34:49,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250965235] [2022-07-23 01:34:49,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:34:49,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:34:49,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:34:49,996 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) [2022-07-23 01:34:50,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-23 01:34:51,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:34:51,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 1496 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 01:34:51,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:34:51,474 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-07-23 01:34:51,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:34:51,802 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-07-23 01:34:51,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:34:51,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250965235] [2022-07-23 01:34:51,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [250965235] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:34:51,803 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 01:34:51,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-23 01:34:51,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713731366] [2022-07-23 01:34:51,803 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 01:34:51,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 01:34:51,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:34:51,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 01:34:51,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:34:51,806 INFO L87 Difference]: Start difference. First operand 1687 states and 2412 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-23 01:34:52,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:34:52,165 INFO L93 Difference]: Finished difference Result 3367 states and 4819 transitions. [2022-07-23 01:34:52,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 01:34:52,166 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 182 [2022-07-23 01:34:52,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:34:52,173 INFO L225 Difference]: With dead ends: 3367 [2022-07-23 01:34:52,173 INFO L226 Difference]: Without dead ends: 1690 [2022-07-23 01:34:52,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-07-23 01:34:52,180 INFO L413 NwaCegarLoop]: 2409 mSDtfsCounter, 16 mSDsluCounter, 4814 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 7223 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:34:52,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 7223 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:34:52,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2022-07-23 01:34:52,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1690. [2022-07-23 01:34:52,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1690 states, 1169 states have (on average 1.3156544054747648) internal successors, (1538), 1184 states have internal predecessors, (1538), 439 states have call successors, (439), 82 states have call predecessors, (439), 81 states have return successors, (438), 434 states have call predecessors, (438), 438 states have call successors, (438) [2022-07-23 01:34:52,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 2415 transitions. [2022-07-23 01:34:52,232 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 2415 transitions. Word has length 182 [2022-07-23 01:34:52,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:34:52,233 INFO L495 AbstractCegarLoop]: Abstraction has 1690 states and 2415 transitions. [2022-07-23 01:34:52,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-23 01:34:52,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 2415 transitions. [2022-07-23 01:34:52,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-23 01:34:52,239 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:34:52,239 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:34:52,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-23 01:34:52,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:34:52,468 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:34:52,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:34:52,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1116492112, now seen corresponding path program 2 times [2022-07-23 01:34:52,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:34:52,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938189679] [2022-07-23 01:34:52,470 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 01:34:52,470 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:34:52,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:34:52,477 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) [2022-07-23 01:34:52,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-23 01:34:53,324 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 01:34:53,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 01:34:53,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 01:34:53,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:34:53,814 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-23 01:34:53,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:34:53,815 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:34:53,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938189679] [2022-07-23 01:34:53,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [938189679] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:34:53,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:34:53,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 01:34:53,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976324526] [2022-07-23 01:34:53,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:34:53,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 01:34:53,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:34:53,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 01:34:53,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 01:34:53,817 INFO L87 Difference]: Start difference. First operand 1690 states and 2415 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-23 01:34:54,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:34:54,029 INFO L93 Difference]: Finished difference Result 5013 states and 7171 transitions. [2022-07-23 01:34:54,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 01:34:54,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 194 [2022-07-23 01:34:54,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:34:54,046 INFO L225 Difference]: With dead ends: 5013 [2022-07-23 01:34:54,047 INFO L226 Difference]: Without dead ends: 3355 [2022-07-23 01:34:54,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:34:54,055 INFO L413 NwaCegarLoop]: 2847 mSDtfsCounter, 2357 mSDsluCounter, 8051 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 10898 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:34:54,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2361 Valid, 10898 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:34:54,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-07-23 01:34:54,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3342. [2022-07-23 01:34:54,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3342 states, 2312 states have (on average 1.3166089965397925) internal successors, (3044), 2346 states have internal predecessors, (3044), 867 states have call successors, (867), 163 states have call predecessors, (867), 162 states have return successors, (866), 854 states have call predecessors, (866), 866 states have call successors, (866) [2022-07-23 01:34:54,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3342 states to 3342 states and 4777 transitions. [2022-07-23 01:34:54,162 INFO L78 Accepts]: Start accepts. Automaton has 3342 states and 4777 transitions. Word has length 194 [2022-07-23 01:34:54,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:34:54,163 INFO L495 AbstractCegarLoop]: Abstraction has 3342 states and 4777 transitions. [2022-07-23 01:34:54,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-23 01:34:54,163 INFO L276 IsEmpty]: Start isEmpty. Operand 3342 states and 4777 transitions. [2022-07-23 01:34:54,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-23 01:34:54,170 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:34:54,170 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:34:54,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-23 01:34:54,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:34:54,388 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:34:54,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:34:54,388 INFO L85 PathProgramCache]: Analyzing trace with hash -764921439, now seen corresponding path program 1 times [2022-07-23 01:34:54,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:34:54,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1250440257] [2022-07-23 01:34:54,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:34:54,389 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:34:54,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:34:54,391 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) [2022-07-23 01:34:54,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-23 01:34:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:34:56,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 1630 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 01:34:56,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:34:56,964 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-23 01:34:56,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:34:56,965 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:34:56,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1250440257] [2022-07-23 01:34:56,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1250440257] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:34:56,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:34:56,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 01:34:56,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935745976] [2022-07-23 01:34:56,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:34:56,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 01:34:56,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:34:56,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 01:34:56,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 01:34:56,966 INFO L87 Difference]: Start difference. First operand 3342 states and 4777 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-23 01:34:57,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:34:57,268 INFO L93 Difference]: Finished difference Result 9982 states and 14275 transitions. [2022-07-23 01:34:57,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 01:34:57,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 195 [2022-07-23 01:34:57,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:34:57,303 INFO L225 Difference]: With dead ends: 9982 [2022-07-23 01:34:57,304 INFO L226 Difference]: Without dead ends: 6672 [2022-07-23 01:34:57,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:34:57,324 INFO L413 NwaCegarLoop]: 2855 mSDtfsCounter, 2356 mSDsluCounter, 8065 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 10920 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:34:57,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2360 Valid, 10920 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:34:57,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6672 states. [2022-07-23 01:34:57,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6672 to 6651. [2022-07-23 01:34:57,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6651 states, 4604 states have (on average 1.3166811468288444) internal successors, (6062), 4671 states have internal predecessors, (6062), 1722 states have call successors, (1722), 325 states have call predecessors, (1722), 324 states have return successors, (1721), 1698 states have call predecessors, (1721), 1721 states have call successors, (1721) [2022-07-23 01:34:57,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6651 states to 6651 states and 9505 transitions. [2022-07-23 01:34:57,522 INFO L78 Accepts]: Start accepts. Automaton has 6651 states and 9505 transitions. Word has length 195 [2022-07-23 01:34:57,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:34:57,523 INFO L495 AbstractCegarLoop]: Abstraction has 6651 states and 9505 transitions. [2022-07-23 01:34:57,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-23 01:34:57,524 INFO L276 IsEmpty]: Start isEmpty. Operand 6651 states and 9505 transitions. [2022-07-23 01:34:57,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-07-23 01:34:57,531 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:34:57,531 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:34:57,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-23 01:34:57,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:34:57,751 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:34:57,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:34:57,752 INFO L85 PathProgramCache]: Analyzing trace with hash -61131277, now seen corresponding path program 1 times [2022-07-23 01:34:57,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:34:57,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676979533] [2022-07-23 01:34:57,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:34:57,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:34:57,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:34:57,754 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) [2022-07-23 01:34:57,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-23 01:34:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:34:59,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 1632 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 01:34:59,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:35:00,259 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-23 01:35:00,259 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:35:00,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:35:00,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676979533] [2022-07-23 01:35:00,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1676979533] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:35:00,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:35:00,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 01:35:00,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329734346] [2022-07-23 01:35:00,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:35:00,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 01:35:00,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:35:00,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 01:35:00,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 01:35:00,261 INFO L87 Difference]: Start difference. First operand 6651 states and 9505 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-23 01:35:00,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:35:00,683 INFO L93 Difference]: Finished difference Result 19932 states and 28489 transitions. [2022-07-23 01:35:00,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 01:35:00,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 196 [2022-07-23 01:35:00,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:35:00,780 INFO L225 Difference]: With dead ends: 19932 [2022-07-23 01:35:00,781 INFO L226 Difference]: Without dead ends: 13313 [2022-07-23 01:35:00,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:35:00,817 INFO L413 NwaCegarLoop]: 2836 mSDtfsCounter, 2357 mSDsluCounter, 8027 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 10863 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:35:00,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2361 Valid, 10863 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:35:00,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13313 states. [2022-07-23 01:35:01,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13313 to 13274. [2022-07-23 01:35:01,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13274 states, 9193 states have (on average 1.3164364190144675) internal successors, (12102), 9325 states have internal predecessors, (12102), 3431 states have call successors, (3431), 650 states have call predecessors, (3431), 649 states have return successors, (3430), 3386 states have call predecessors, (3430), 3430 states have call successors, (3430) [2022-07-23 01:35:01,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13274 states to 13274 states and 18963 transitions. [2022-07-23 01:35:01,427 INFO L78 Accepts]: Start accepts. Automaton has 13274 states and 18963 transitions. Word has length 196 [2022-07-23 01:35:01,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:35:01,428 INFO L495 AbstractCegarLoop]: Abstraction has 13274 states and 18963 transitions. [2022-07-23 01:35:01,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-23 01:35:01,429 INFO L276 IsEmpty]: Start isEmpty. Operand 13274 states and 18963 transitions. [2022-07-23 01:35:01,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-07-23 01:35:01,438 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:35:01,439 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:35:01,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-07-23 01:35:01,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:35:01,656 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:35:01,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:35:01,656 INFO L85 PathProgramCache]: Analyzing trace with hash -820404636, now seen corresponding path program 1 times [2022-07-23 01:35:01,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:35:01,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1712745175] [2022-07-23 01:35:01,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:35:01,658 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:35:01,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:35:01,668 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) [2022-07-23 01:35:01,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-23 01:35:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:35:03,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 1634 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 01:35:03,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:35:04,165 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-23 01:35:04,165 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:35:04,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:35:04,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1712745175] [2022-07-23 01:35:04,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1712745175] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:35:04,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:35:04,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 01:35:04,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191538797] [2022-07-23 01:35:04,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:35:04,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 01:35:04,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:35:04,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 01:35:04,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 01:35:04,167 INFO L87 Difference]: Start difference. First operand 13274 states and 18963 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-23 01:35:04,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:35:04,861 INFO L93 Difference]: Finished difference Result 39832 states and 56901 transitions. [2022-07-23 01:35:04,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 01:35:04,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 197 [2022-07-23 01:35:04,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:35:05,032 INFO L225 Difference]: With dead ends: 39832 [2022-07-23 01:35:05,033 INFO L226 Difference]: Without dead ends: 26590 [2022-07-23 01:35:05,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:35:05,117 INFO L413 NwaCegarLoop]: 2836 mSDtfsCounter, 2358 mSDsluCounter, 8027 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2362 SdHoareTripleChecker+Valid, 10863 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:35:05,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2362 Valid, 10863 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:35:05,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26590 states. [2022-07-23 01:35:06,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26590 to 26518. [2022-07-23 01:35:06,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26518 states, 18371 states have (on average 1.315987153666104) internal successors, (24176), 18631 states have internal predecessors, (24176), 6846 states have call successors, (6846), 1301 states have call predecessors, (6846), 1300 states have return successors, (6845), 6761 states have call predecessors, (6845), 6845 states have call successors, (6845) [2022-07-23 01:35:06,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26518 states to 26518 states and 37867 transitions. [2022-07-23 01:35:06,156 INFO L78 Accepts]: Start accepts. Automaton has 26518 states and 37867 transitions. Word has length 197 [2022-07-23 01:35:06,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:35:06,157 INFO L495 AbstractCegarLoop]: Abstraction has 26518 states and 37867 transitions. [2022-07-23 01:35:06,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-23 01:35:06,157 INFO L276 IsEmpty]: Start isEmpty. Operand 26518 states and 37867 transitions. [2022-07-23 01:35:06,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-23 01:35:06,165 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:35:06,165 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:35:06,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-23 01:35:06,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:35:06,379 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:35:06,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:35:06,380 INFO L85 PathProgramCache]: Analyzing trace with hash -656198339, now seen corresponding path program 1 times [2022-07-23 01:35:06,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:35:06,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635613028] [2022-07-23 01:35:06,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:35:06,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:35:06,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:35:06,382 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) [2022-07-23 01:35:06,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-23 01:35:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:35:08,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 1655 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:35:08,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:35:08,455 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-07-23 01:35:08,455 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:35:08,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:35:08,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635613028] [2022-07-23 01:35:08,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635613028] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:35:08,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:35:08,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:35:08,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529722022] [2022-07-23 01:35:08,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:35:08,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:35:08,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:35:08,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:35:08,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:35:08,458 INFO L87 Difference]: Start difference. First operand 26518 states and 37867 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-23 01:35:09,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:35:09,845 INFO L93 Difference]: Finished difference Result 73720 states and 104866 transitions. [2022-07-23 01:35:09,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:35:09,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 209 [2022-07-23 01:35:09,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:35:10,271 INFO L225 Difference]: With dead ends: 73720 [2022-07-23 01:35:10,272 INFO L226 Difference]: Without dead ends: 47234 [2022-07-23 01:35:10,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:35:10,393 INFO L413 NwaCegarLoop]: 2735 mSDtfsCounter, 1894 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1894 SdHoareTripleChecker+Valid, 4987 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 01:35:10,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1894 Valid, 4987 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 01:35:10,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47234 states. [2022-07-23 01:35:12,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47234 to 47151. [2022-07-23 01:35:12,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47151 states, 32728 states have (on average 1.3129430457100952) internal successors, (42970), 33262 states have internal predecessors, (42970), 11987 states have call successors, (11987), 2452 states have call predecessors, (11987), 2435 states have return successors, (11986), 11754 states have call predecessors, (11986), 11986 states have call successors, (11986) [2022-07-23 01:35:12,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47151 states to 47151 states and 66943 transitions. [2022-07-23 01:35:12,741 INFO L78 Accepts]: Start accepts. Automaton has 47151 states and 66943 transitions. Word has length 209 [2022-07-23 01:35:12,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:35:12,742 INFO L495 AbstractCegarLoop]: Abstraction has 47151 states and 66943 transitions. [2022-07-23 01:35:12,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-23 01:35:12,742 INFO L276 IsEmpty]: Start isEmpty. Operand 47151 states and 66943 transitions. [2022-07-23 01:35:12,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-07-23 01:35:12,746 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:35:12,747 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:35:12,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-23 01:35:12,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:35:12,963 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:35:12,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:35:12,964 INFO L85 PathProgramCache]: Analyzing trace with hash 747111617, now seen corresponding path program 1 times [2022-07-23 01:35:12,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:35:12,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268423225] [2022-07-23 01:35:12,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:35:12,965 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:35:12,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:35:12,968 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) [2022-07-23 01:35:12,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-23 01:35:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:35:15,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 1666 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-23 01:35:15,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:35:15,656 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-07-23 01:35:15,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:35:15,981 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-07-23 01:35:15,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:35:15,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268423225] [2022-07-23 01:35:15,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268423225] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 01:35:15,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 01:35:15,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 10 [2022-07-23 01:35:15,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431483249] [2022-07-23 01:35:15,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:35:15,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 01:35:15,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:35:15,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 01:35:15,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-23 01:35:15,983 INFO L87 Difference]: Start difference. First operand 47151 states and 66943 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-23 01:35:26,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:35:26,711 INFO L93 Difference]: Finished difference Result 127795 states and 182940 transitions. [2022-07-23 01:35:26,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-23 01:35:26,712 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 207 [2022-07-23 01:35:26,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:35:27,272 INFO L225 Difference]: With dead ends: 127795 [2022-07-23 01:35:27,273 INFO L226 Difference]: Without dead ends: 80676 [2022-07-23 01:35:27,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-07-23 01:35:27,519 INFO L413 NwaCegarLoop]: 4210 mSDtfsCounter, 3882 mSDsluCounter, 19639 mSDsCounter, 0 mSdLazyCounter, 3161 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3889 SdHoareTripleChecker+Valid, 23849 SdHoareTripleChecker+Invalid, 3583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 3161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-07-23 01:35:27,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3889 Valid, 23849 Invalid, 3583 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [422 Valid, 3161 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-07-23 01:35:27,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80676 states. [2022-07-23 01:35:29,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80676 to 70461. [2022-07-23 01:35:29,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70461 states, 48900 states have (on average 1.3134560327198364) internal successors, (64228), 49688 states have internal predecessors, (64228), 17931 states have call successors, (17931), 3654 states have call predecessors, (17931), 3629 states have return successors, (17930), 17594 states have call predecessors, (17930), 17930 states have call successors, (17930) [2022-07-23 01:35:30,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70461 states to 70461 states and 100089 transitions. [2022-07-23 01:35:30,535 INFO L78 Accepts]: Start accepts. Automaton has 70461 states and 100089 transitions. Word has length 207 [2022-07-23 01:35:30,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:35:30,536 INFO L495 AbstractCegarLoop]: Abstraction has 70461 states and 100089 transitions. [2022-07-23 01:35:30,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-23 01:35:30,536 INFO L276 IsEmpty]: Start isEmpty. Operand 70461 states and 100089 transitions. [2022-07-23 01:35:30,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-07-23 01:35:30,544 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:35:30,544 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:35:30,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-23 01:35:30,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:35:30,764 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:35:30,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:35:30,764 INFO L85 PathProgramCache]: Analyzing trace with hash -12337195, now seen corresponding path program 1 times [2022-07-23 01:35:30,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:35:30,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501393906] [2022-07-23 01:35:30,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:35:30,767 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:35:30,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:35:30,768 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:35:30,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-23 01:35:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:35:32,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 1668 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-23 01:35:32,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:35:33,307 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-23 01:35:33,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:35:33,606 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-23 01:35:33,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:35:33,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501393906] [2022-07-23 01:35:33,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [501393906] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:35:33,606 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 01:35:33,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-23 01:35:33,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468581056] [2022-07-23 01:35:33,606 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 01:35:33,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 01:35:33,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:35:33,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 01:35:33,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-23 01:35:33,607 INFO L87 Difference]: Start difference. First operand 70461 states and 100089 transitions. Second operand has 11 states, 11 states have (on average 9.0) internal successors, (99), 9 states have internal predecessors, (99), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-23 01:35:57,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:35:57,122 INFO L93 Difference]: Finished difference Result 162681 states and 232520 transitions. [2022-07-23 01:35:57,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-23 01:35:57,123 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.0) internal successors, (99), 9 states have internal predecessors, (99), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 208 [2022-07-23 01:35:57,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:35:57,698 INFO L225 Difference]: With dead ends: 162681 [2022-07-23 01:35:57,698 INFO L226 Difference]: Without dead ends: 92252 [2022-07-23 01:35:58,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-07-23 01:35:58,077 INFO L413 NwaCegarLoop]: 6252 mSDtfsCounter, 10192 mSDsluCounter, 28073 mSDsCounter, 0 mSdLazyCounter, 8117 mSolverCounterSat, 3087 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10403 SdHoareTripleChecker+Valid, 34325 SdHoareTripleChecker+Invalid, 11204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3087 IncrementalHoareTripleChecker+Valid, 8117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2022-07-23 01:35:58,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10403 Valid, 34325 Invalid, 11204 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3087 Valid, 8117 Invalid, 0 Unknown, 0 Unchecked, 19.4s Time] [2022-07-23 01:35:58,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92252 states. [2022-07-23 01:36:00,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92252 to 82067. [2022-07-23 01:36:01,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82067 states, 56944 states have (on average 1.313395616746277) internal successors, (74790), 57870 states have internal predecessors, (74790), 20891 states have call successors, (20891), 4260 states have call predecessors, (20891), 4231 states have return successors, (20898), 20490 states have call predecessors, (20898), 20890 states have call successors, (20898) [2022-07-23 01:36:01,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82067 states to 82067 states and 116579 transitions. [2022-07-23 01:36:01,738 INFO L78 Accepts]: Start accepts. Automaton has 82067 states and 116579 transitions. Word has length 208 [2022-07-23 01:36:01,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:36:01,755 INFO L495 AbstractCegarLoop]: Abstraction has 82067 states and 116579 transitions. [2022-07-23 01:36:01,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.0) internal successors, (99), 9 states have internal predecessors, (99), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-23 01:36:01,756 INFO L276 IsEmpty]: Start isEmpty. Operand 82067 states and 116579 transitions. [2022-07-23 01:36:01,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-23 01:36:01,764 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:36:01,764 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:36:01,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-23 01:36:01,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:36:01,965 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:36:01,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:36:01,965 INFO L85 PathProgramCache]: Analyzing trace with hash -890851192, now seen corresponding path program 1 times [2022-07-23 01:36:01,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:36:01,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689443311] [2022-07-23 01:36:01,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:36:01,967 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:36:01,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:36:01,968 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:36:01,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-23 01:36:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:36:03,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 1670 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-23 01:36:03,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:36:04,421 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-23 01:36:04,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:36:04,759 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-23 01:36:04,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:36:04,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689443311] [2022-07-23 01:36:04,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [689443311] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:36:04,760 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 01:36:04,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-23 01:36:04,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915047146] [2022-07-23 01:36:04,760 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 01:36:04,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 01:36:04,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:36:04,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 01:36:04,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-23 01:36:04,762 INFO L87 Difference]: Start difference. First operand 82067 states and 116579 transitions. Second operand has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 9 states have internal predecessors, (100), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-23 01:36:38,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:36:38,402 INFO L93 Difference]: Finished difference Result 185895 states and 265502 transitions. [2022-07-23 01:36:38,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-23 01:36:38,404 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 9 states have internal predecessors, (100), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 209 [2022-07-23 01:36:38,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:36:39,093 INFO L225 Difference]: With dead ends: 185895 [2022-07-23 01:36:39,094 INFO L226 Difference]: Without dead ends: 103860 [2022-07-23 01:36:39,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-07-23 01:36:39,389 INFO L413 NwaCegarLoop]: 6598 mSDtfsCounter, 9876 mSDsluCounter, 41986 mSDsCounter, 0 mSdLazyCounter, 13870 mSolverCounterSat, 3005 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10087 SdHoareTripleChecker+Valid, 48584 SdHoareTripleChecker+Invalid, 16875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3005 IncrementalHoareTripleChecker+Valid, 13870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.8s IncrementalHoareTripleChecker+Time [2022-07-23 01:36:39,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10087 Valid, 48584 Invalid, 16875 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3005 Valid, 13870 Invalid, 0 Unknown, 0 Unchecked, 28.8s Time] [2022-07-23 01:36:39,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103860 states. [2022-07-23 01:36:42,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103860 to 87957. [2022-07-23 01:36:42,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87957 states, 61032 states have (on average 1.3134257438720671) internal successors, (80161), 62030 states have internal predecessors, (80161), 22389 states have call successors, (22389), 4566 states have call predecessors, (22389), 4535 states have return successors, (22402), 21954 states have call predecessors, (22402), 22388 states have call successors, (22402) [2022-07-23 01:36:43,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87957 states to 87957 states and 124952 transitions. [2022-07-23 01:36:43,061 INFO L78 Accepts]: Start accepts. Automaton has 87957 states and 124952 transitions. Word has length 209 [2022-07-23 01:36:43,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:36:43,061 INFO L495 AbstractCegarLoop]: Abstraction has 87957 states and 124952 transitions. [2022-07-23 01:36:43,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 9 states have internal predecessors, (100), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-23 01:36:43,062 INFO L276 IsEmpty]: Start isEmpty. Operand 87957 states and 124952 transitions. [2022-07-23 01:36:43,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-23 01:36:43,067 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:36:43,068 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:36:43,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-23 01:36:43,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:36:43,297 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:36:43,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:36:43,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1165418628, now seen corresponding path program 1 times [2022-07-23 01:36:43,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:36:43,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1842152675] [2022-07-23 01:36:43,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:36:43,299 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:36:43,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:36:43,300 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:36:43,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-23 01:36:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:36:45,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-23 01:36:45,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:36:46,009 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-23 01:36:46,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:36:46,293 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-23 01:36:46,293 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:36:46,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1842152675] [2022-07-23 01:36:46,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1842152675] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:36:46,293 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 01:36:46,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-23 01:36:46,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673641645] [2022-07-23 01:36:46,293 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 01:36:46,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 01:36:46,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:36:46,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 01:36:46,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-23 01:36:46,294 INFO L87 Difference]: Start difference. First operand 87957 states and 124952 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 9 states have internal predecessors, (101), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-23 01:37:13,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:37:13,112 INFO L93 Difference]: Finished difference Result 197676 states and 282249 transitions. [2022-07-23 01:37:13,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-23 01:37:13,114 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 9 states have internal predecessors, (101), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 210 [2022-07-23 01:37:13,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:37:13,684 INFO L225 Difference]: With dead ends: 197676 [2022-07-23 01:37:13,684 INFO L226 Difference]: Without dead ends: 109751 [2022-07-23 01:37:14,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-07-23 01:37:14,131 INFO L413 NwaCegarLoop]: 6590 mSDtfsCounter, 9920 mSDsluCounter, 35137 mSDsCounter, 0 mSdLazyCounter, 9729 mSolverCounterSat, 3013 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10131 SdHoareTripleChecker+Valid, 41727 SdHoareTripleChecker+Invalid, 12742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3013 IncrementalHoareTripleChecker+Valid, 9729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2022-07-23 01:37:14,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10131 Valid, 41727 Invalid, 12742 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3013 Valid, 9729 Invalid, 0 Unknown, 0 Unchecked, 21.3s Time] [2022-07-23 01:37:14,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109751 states. [2022-07-23 01:37:17,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109751 to 90903. [2022-07-23 01:37:17,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90903 states, 63076 states have (on average 1.3134472699600481) internal successors, (82847), 64111 states have internal predecessors, (82847), 23139 states have call successors, (23139), 4719 states have call predecessors, (23139), 4687 states have return successors, (23156), 22686 states have call predecessors, (23156), 23138 states have call successors, (23156) [2022-07-23 01:37:18,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90903 states to 90903 states and 129142 transitions. [2022-07-23 01:37:18,062 INFO L78 Accepts]: Start accepts. Automaton has 90903 states and 129142 transitions. Word has length 210 [2022-07-23 01:37:18,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:37:18,064 INFO L495 AbstractCegarLoop]: Abstraction has 90903 states and 129142 transitions. [2022-07-23 01:37:18,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 9 states have internal predecessors, (101), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-23 01:37:18,065 INFO L276 IsEmpty]: Start isEmpty. Operand 90903 states and 129142 transitions. [2022-07-23 01:37:18,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-23 01:37:18,071 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:37:18,072 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:37:18,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-23 01:37:18,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:37:18,276 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:37:18,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:37:18,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1240656292, now seen corresponding path program 1 times [2022-07-23 01:37:18,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:37:18,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932548983] [2022-07-23 01:37:18,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:37:18,278 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:37:18,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:37:18,279 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:37:18,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-23 01:37:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:37:20,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 1706 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-23 01:37:20,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:37:21,156 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2022-07-23 01:37:21,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:37:21,793 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-07-23 01:37:21,793 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:37:21,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932548983] [2022-07-23 01:37:21,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932548983] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:37:21,793 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 01:37:21,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 16 [2022-07-23 01:37:21,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241473229] [2022-07-23 01:37:21,794 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 01:37:21,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-23 01:37:21,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:37:21,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-23 01:37:21,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-07-23 01:37:21,795 INFO L87 Difference]: Start difference. First operand 90903 states and 129142 transitions. Second operand has 16 states, 16 states have (on average 6.75) internal successors, (108), 13 states have internal predecessors, (108), 4 states have call successors, (41), 5 states have call predecessors, (41), 7 states have return successors, (36), 5 states have call predecessors, (36), 4 states have call successors, (36)