./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.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 7d0df1181ffc4c53f45cd03069b14e0b0a1098ff4e46600d385a44951d78aaf4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 11:06:42,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:06:42,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:06:42,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:06:42,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:06:42,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:06:42,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:06:42,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:06:42,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:06:42,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:06:42,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:06:42,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:06:42,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:06:42,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:06:42,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:06:42,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:06:42,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:06:42,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:06:42,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:06:42,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:06:42,163 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:06:42,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:06:42,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:06:42,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:06:42,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:06:42,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:06:42,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:06:42,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:06:42,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:06:42,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:06:42,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:06:42,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:06:42,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:06:42,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:06:42,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:06:42,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:06:42,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:06:42,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:06:42,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:06:42,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:06:42,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:06:42,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:06:42,182 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 11:06:42,212 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:06:42,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:06:42,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:06:42,214 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:06:42,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:06:42,214 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:06:42,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:06:42,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:06:42,215 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:06:42,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:06:42,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 11:06:42,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:06:42,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:06:42,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:06:42,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:06:42,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:06:42,224 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:06:42,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:06:42,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:06:42,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:06:42,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:06:42,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:06:42,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:06:42,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:06:42,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:06:42,226 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 11:06:42,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 11:06:42,226 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:06:42,226 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:06:42,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:06:42,227 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d0df1181ffc4c53f45cd03069b14e0b0a1098ff4e46600d385a44951d78aaf4 [2022-07-21 11:06:42,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:06:42,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:06:42,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:06:42,522 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:06:42,523 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:06:42,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i [2022-07-21 11:06:42,581 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bd7510dc/17cc90f2867447c2bd17b5713d2787ab/FLAG564848704 [2022-07-21 11:06:43,392 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:06:43,393 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i [2022-07-21 11:06:43,442 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bd7510dc/17cc90f2867447c2bd17b5713d2787ab/FLAG564848704 [2022-07-21 11:06:43,923 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bd7510dc/17cc90f2867447c2bd17b5713d2787ab [2022-07-21 11:06:43,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:06:43,927 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:06:43,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:06:43,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:06:43,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:06:43,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:06:43" (1/1) ... [2022-07-21 11:06:43,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e06dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:06:43, skipping insertion in model container [2022-07-21 11:06:43,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:06:43" (1/1) ... [2022-07-21 11:06:43,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:06:44,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:06:44,787 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i[183405,183418] [2022-07-21 11:06:47,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:06:47,256 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:06:47,410 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i[183405,183418] [2022-07-21 11:06:47,429 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: mii_reg = (unsigned int )mii_reg & 63487U [6591] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-21 11:06:47,438 INFO L158 Benchmark]: Toolchain (without parser) took 3508.64ms. Allocated memory was 62.9MB in the beginning and 144.7MB in the end (delta: 81.8MB). Free memory was 35.8MB in the beginning and 71.2MB in the end (delta: -35.5MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. [2022-07-21 11:06:47,439 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 62.9MB. Free memory was 44.5MB in the beginning and 44.4MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 11:06:47,440 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3506.94ms. Allocated memory was 62.9MB in the beginning and 144.7MB in the end (delta: 81.8MB). Free memory was 35.6MB in the beginning and 71.2MB in the end (delta: -35.6MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. [2022-07-21 11:06:47,442 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 62.9MB. Free memory was 44.5MB in the beginning and 44.4MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3506.94ms. Allocated memory was 62.9MB in the beginning and 144.7MB in the end (delta: 81.8MB). Free memory was 35.6MB in the beginning and 71.2MB in the end (delta: -35.6MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: mii_reg = (unsigned int )mii_reg & 63487U [6591] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: mii_reg = (unsigned int )mii_reg & 63487U [6591]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.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 7d0df1181ffc4c53f45cd03069b14e0b0a1098ff4e46600d385a44951d78aaf4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 11:06:49,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:06:49,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:06:49,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:06:49,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:06:49,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:06:49,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:06:49,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:06:49,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:06:49,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:06:49,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:06:49,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:06:49,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:06:49,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:06:49,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:06:49,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:06:49,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:06:49,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:06:49,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:06:49,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:06:49,212 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:06:49,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:06:49,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:06:49,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:06:49,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:06:49,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:06:49,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:06:49,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:06:49,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:06:49,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:06:49,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:06:49,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:06:49,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:06:49,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:06:49,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:06:49,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:06:49,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:06:49,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:06:49,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:06:49,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:06:49,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:06:49,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:06:49,238 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 11:06:49,270 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:06:49,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:06:49,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:06:49,271 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:06:49,272 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:06:49,272 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:06:49,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:06:49,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:06:49,273 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:06:49,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:06:49,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:06:49,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:06:49,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:06:49,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:06:49,275 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 11:06:49,275 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 11:06:49,275 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 11:06:49,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:06:49,276 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:06:49,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:06:49,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:06:49,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:06:49,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:06:49,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:06:49,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:06:49,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:06:49,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:06:49,277 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 11:06:49,278 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 11:06:49,278 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:06:49,278 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:06:49,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:06:49,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 11:06:49,279 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d0df1181ffc4c53f45cd03069b14e0b0a1098ff4e46600d385a44951d78aaf4 [2022-07-21 11:06:49,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:06:49,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:06:49,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:06:49,580 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:06:49,581 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:06:49,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i [2022-07-21 11:06:49,642 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cc1c9a6d/d30430a1cbe54b5b9ad08547a51fd0ac/FLAG5eb1bda41 [2022-07-21 11:06:50,498 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:06:50,499 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i [2022-07-21 11:06:50,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cc1c9a6d/d30430a1cbe54b5b9ad08547a51fd0ac/FLAG5eb1bda41 [2022-07-21 11:06:50,635 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cc1c9a6d/d30430a1cbe54b5b9ad08547a51fd0ac [2022-07-21 11:06:50,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:06:50,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:06:50,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:06:50,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:06:50,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:06:50,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:06:50" (1/1) ... [2022-07-21 11:06:50,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626b5fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:06:50, skipping insertion in model container [2022-07-21 11:06:50,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:06:50" (1/1) ... [2022-07-21 11:06:50,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:06:50,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:06:51,517 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i[183405,183418] [2022-07-21 11:06:53,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:06:53,898 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 11:06:53,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:06:54,079 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i[183405,183418] [2022-07-21 11:06:54,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:06:54,392 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:06:54,513 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i[183405,183418] [2022-07-21 11:06:54,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:06:55,007 INFO L208 MainTranslator]: Completed translation [2022-07-21 11:06:55,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:06:55 WrapperNode [2022-07-21 11:06:55,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 11:06:55,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 11:06:55,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 11:06:55,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 11:06:55,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:06:55" (1/1) ... [2022-07-21 11:06:55,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:06:55" (1/1) ... [2022-07-21 11:06:55,356 INFO L137 Inliner]: procedures = 495, calls = 5164, calls flagged for inlining = 241, calls inlined = 216, statements flattened = 8860 [2022-07-21 11:06:55,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 11:06:55,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 11:06:55,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 11:06:55,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 11:06:55,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:06:55" (1/1) ... [2022-07-21 11:06:55,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:06:55" (1/1) ... [2022-07-21 11:06:55,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:06:55" (1/1) ... [2022-07-21 11:06:55,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:06:55" (1/1) ... [2022-07-21 11:06:55,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:06:55" (1/1) ... [2022-07-21 11:06:55,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:06:55" (1/1) ... [2022-07-21 11:06:55,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:06:55" (1/1) ... [2022-07-21 11:06:55,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 11:06:55,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 11:06:55,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 11:06:55,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 11:06:55,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:06:55" (1/1) ... [2022-07-21 11:06:55,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:06:55,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:06:55,715 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) [2022-07-21 11:06:55,731 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 [2022-07-21 11:06:55,753 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-21 11:06:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-21 11:06:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_irq_disable [2022-07-21 11:06:55,754 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_irq_disable [2022-07-21 11:06:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_intr [2022-07-21 11:06:55,754 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_intr [2022-07-21 11:06:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 11:06:55,754 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 11:06:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 11:06:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 11:06:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_minnow_platform_init [2022-07-21 11:06:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_minnow_platform_init [2022-07-21 11:06:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_open [2022-07-21 11:06:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_open [2022-07-21 11:06:55,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-21 11:06:55,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-21 11:06:55,756 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-07-21 11:06:55,756 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-07-21 11:06:55,756 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-07-21 11:06:55,756 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-07-21 11:06:55,756 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_reinit_locked [2022-07-21 11:06:55,757 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_reinit_locked [2022-07-21 11:06:55,757 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_power_up_phy [2022-07-21 11:06:55,757 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_power_up_phy [2022-07-21 11:06:55,757 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_setup_tx_resources [2022-07-21 11:06:55,757 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_setup_tx_resources [2022-07-21 11:06:55,757 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-21 11:06:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-21 11:06:55,758 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 11:06:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 11:06:55,758 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-21 11:06:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-21 11:06:55,758 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_netpoll [2022-07-21 11:06:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_netpoll [2022-07-21 11:06:55,759 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_plat_init_hw [2022-07-21 11:06:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_plat_init_hw [2022-07-21 11:06:55,759 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_free_rx_resources [2022-07-21 11:06:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_free_rx_resources [2022-07-21 11:06:55,759 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_free_tx_resources [2022-07-21 11:06:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_free_tx_resources [2022-07-21 11:06:55,760 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-21 11:06:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-21 11:06:55,760 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-21 11:06:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-21 11:06:55,760 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_io_error_detected [2022-07-21 11:06:55,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_io_error_detected [2022-07-21 11:06:55,761 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 11:06:55,761 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 11:06:55,761 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-07-21 11:06:55,761 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-07-21 11:06:55,761 INFO L130 BoogieDeclarations]: Found specification of procedure pch_set_station_address [2022-07-21 11:06:55,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_set_station_address [2022-07-21 11:06:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-21 11:06:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-21 11:06:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mdio_write [2022-07-21 11:06:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mdio_write [2022-07-21 11:06:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-21 11:06:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-21 11:06:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-21 11:06:55,763 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-21 11:06:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-21 11:06:55,763 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-21 11:06:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-21 11:06:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-07-21 11:06:55,764 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-07-21 11:06:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 11:06:55,764 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 11:06:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-07-21 11:06:55,764 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-07-21 11:06:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 11:06:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_power_up [2022-07-21 11:06:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_power_up [2022-07-21 11:06:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 11:06:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 11:06:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 11:06:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-07-21 11:06:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-07-21 11:06:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 11:06:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 11:06:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_resume [2022-07-21 11:06:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_resume [2022-07-21 11:06:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 11:06:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 11:06:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure pch_ch_event_write [2022-07-21 11:06:55,767 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_ch_event_write [2022-07-21 11:06:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-21 11:06:55,767 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-21 11:06:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-21 11:06:55,767 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-21 11:06:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 11:06:55,768 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 11:06:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 11:06:55,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 11:06:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_enable_dma_rx [2022-07-21 11:06:55,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_enable_dma_rx [2022-07-21 11:06:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_configure_rx [2022-07-21 11:06:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_configure_rx [2022-07-21 11:06:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_wait_clr_bit [2022-07-21 11:06:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_wait_clr_bit [2022-07-21 11:06:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2022-07-21 11:06:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2022-07-21 11:06:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 11:06:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 11:06:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-07-21 11:06:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-07-21 11:06:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 11:06:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 11:06:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_remove [2022-07-21 11:06:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_remove [2022-07-21 11:06:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-07-21 11:06:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-07-21 11:06:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-21 11:06:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-21 11:06:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_force_mac_fc [2022-07-21 11:06:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_force_mac_fc [2022-07-21 11:06:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_suspend [2022-07-21 11:06:55,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_suspend [2022-07-21 11:06:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-21 11:06:55,772 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-21 11:06:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-21 11:06:55,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-21 11:06:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 11:06:55,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 11:06:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2022-07-21 11:06:55,773 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2022-07-21 11:06:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-07-21 11:06:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 11:06:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-07-21 11:06:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-07-21 11:06:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 11:06:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-21 11:06:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-21 11:06:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 11:06:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 11:06:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 11:06:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 11:06:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 11:06:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 11:06:55,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 11:06:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 11:06:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-07-21 11:06:55,775 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-07-21 11:06:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-21 11:06:55,776 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-21 11:06:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_change_mtu [2022-07-21 11:06:55,776 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_change_mtu [2022-07-21 11:06:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-07-21 11:06:55,776 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-07-21 11:06:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_mac [2022-07-21 11:06:55,777 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_mac [2022-07-21 11:06:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_set_wol_event [2022-07-21 11:06:55,777 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_set_wol_event [2022-07-21 11:06:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 11:06:55,777 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 11:06:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_ctrl_miim [2022-07-21 11:06:55,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_ctrl_miim [2022-07-21 11:06:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_get_regs_len [2022-07-21 11:06:55,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_get_regs_len [2022-07-21 11:06:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-21 11:06:55,778 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-21 11:06:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 11:06:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-07-21 11:06:55,779 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-07-21 11:06:55,779 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_features [2022-07-21 11:06:55,779 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_features [2022-07-21 11:06:55,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 11:06:55,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 11:06:55,779 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_alloc_rx_buffers [2022-07-21 11:06:55,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_alloc_rx_buffers [2022-07-21 11:06:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure __pch_gbe_suspend [2022-07-21 11:06:55,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __pch_gbe_suspend [2022-07-21 11:06:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-07-21 11:06:55,780 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-07-21 11:06:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 11:06:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_plat_get_bus_info [2022-07-21 11:06:55,781 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_plat_get_bus_info [2022-07-21 11:06:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-21 11:06:55,781 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-21 11:06:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 11:06:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_power_down [2022-07-21 11:06:55,781 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_power_down [2022-07-21 11:06:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 11:06:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 11:06:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 11:06:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 11:06:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 11:06:55,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 11:06:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2022-07-21 11:06:55,782 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2022-07-21 11:06:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_update_stats [2022-07-21 11:06:55,783 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_update_stats [2022-07-21 11:06:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-21 11:06:55,783 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-21 11:06:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 11:06:55,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 11:06:55,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2022-07-21 11:06:55,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2022-07-21 11:06:55,784 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum [2022-07-21 11:06:55,784 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum [2022-07-21 11:06:55,784 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mdio_read [2022-07-21 11:06:55,784 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mdio_read [2022-07-21 11:06:55,784 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_clean_rx_ring [2022-07-21 11:06:55,785 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_clean_rx_ring [2022-07-21 11:06:55,785 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-21 11:06:55,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-21 11:06:55,785 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_up [2022-07-21 11:06:55,785 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_up [2022-07-21 11:06:55,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 11:06:55,785 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 11:06:55,786 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 11:06:55,786 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 11:06:55,786 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 11:06:55,786 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 11:06:55,786 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2022-07-21 11:06:55,786 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2022-07-21 11:06:55,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2022-07-21 11:06:55,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2022-07-21 11:06:55,787 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_clean_tx_ring [2022-07-21 11:06:55,787 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_clean_tx_ring [2022-07-21 11:06:55,787 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_reset [2022-07-21 11:06:55,787 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_reset [2022-07-21 11:06:55,787 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-07-21 11:06:55,788 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-07-21 11:06:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2022-07-21 11:06:55,788 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2022-07-21 11:06:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_stop [2022-07-21 11:06:55,788 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_stop [2022-07-21 11:06:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 11:06:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_ktime [2022-07-21 11:06:55,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_ktime [2022-07-21 11:06:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-07-21 11:06:55,789 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-07-21 11:06:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-21 11:06:55,789 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-21 11:06:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-21 11:06:55,789 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-21 11:06:55,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 11:06:55,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-21 11:06:55,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-21 11:06:55,790 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_io_resume [2022-07-21 11:06:55,790 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_io_resume [2022-07-21 11:06:55,790 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2022-07-21 11:06:55,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2022-07-21 11:06:55,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 11:06:55,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 11:06:55,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 11:06:55,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 11:06:55,791 INFO L130 BoogieDeclarations]: Found specification of procedure pch_ch_event_read [2022-07-21 11:06:55,791 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_ch_event_read [2022-07-21 11:06:55,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 11:06:55,792 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-21 11:06:55,792 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-21 11:06:55,792 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_nway_reset [2022-07-21 11:06:55,792 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_nway_reset [2022-07-21 11:06:55,792 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 11:06:55,793 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 11:06:55,793 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-21 11:06:55,793 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-21 11:06:55,793 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_irq_enable [2022-07-21 11:06:55,793 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_irq_enable [2022-07-21 11:06:55,794 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 11:06:55,794 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 11:06:55,794 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 11:06:55,794 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 11:06:55,794 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_hw_reset [2022-07-21 11:06:55,794 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_hw_reset [2022-07-21 11:06:55,794 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_tx_timeout [2022-07-21 11:06:55,795 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_tx_timeout [2022-07-21 11:06:55,795 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2022-07-21 11:06:55,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2022-07-21 11:06:55,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 11:06:55,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 11:06:55,795 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2022-07-21 11:06:55,796 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2022-07-21 11:06:55,796 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_power_down_phy [2022-07-21 11:06:55,796 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_power_down_phy [2022-07-21 11:06:55,796 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-21 11:06:55,796 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-21 11:06:55,796 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_mode [2022-07-21 11:06:55,796 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_mode [2022-07-21 11:06:55,797 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 11:06:55,797 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 11:06:55,797 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_setup_rx_resources [2022-07-21 11:06:55,797 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_setup_rx_resources [2022-07-21 11:06:55,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-21 11:06:55,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-21 11:06:55,797 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-21 11:06:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-21 11:06:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_2 [2022-07-21 11:06:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_2 [2022-07-21 11:06:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 11:06:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 11:06:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_validate_option [2022-07-21 11:06:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_validate_option [2022-07-21 11:06:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_reset_hw [2022-07-21 11:06:55,799 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_reset_hw [2022-07-21 11:06:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure udp_hdr [2022-07-21 11:06:55,799 INFO L138 BoogieDeclarations]: Found implementation of procedure udp_hdr [2022-07-21 11:06:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_setup_rctl [2022-07-21 11:06:55,799 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_setup_rctl [2022-07-21 11:06:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 11:06:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_sw_reset [2022-07-21 11:06:55,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_sw_reset [2022-07-21 11:06:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 11:06:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 11:06:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 11:06:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 11:06:55,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 11:06:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_74 [2022-07-21 11:06:55,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_74 [2022-07-21 11:06:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_ioctl [2022-07-21 11:06:55,801 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_ioctl [2022-07-21 11:06:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_phy_hw_reset [2022-07-21 11:06:55,801 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_phy_hw_reset [2022-07-21 11:06:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_write_reg_miic [2022-07-21 11:06:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_write_reg_miic [2022-07-21 11:06:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-21 11:06:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-21 11:06:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-21 11:06:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-21 11:06:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure pch_ch_control_write [2022-07-21 11:06:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_ch_control_write [2022-07-21 11:06:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_multi [2022-07-21 11:06:55,803 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_multi [2022-07-21 11:06:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_shutdown [2022-07-21 11:06:55,803 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_shutdown [2022-07-21 11:06:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-21 11:06:55,803 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-21 11:06:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-21 11:06:55,804 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-21 11:06:55,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-21 11:06:55,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-21 11:06:55,804 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_read_reg_miic [2022-07-21 11:06:55,804 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_read_reg_miic [2022-07-21 11:06:55,804 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_read_mac_addr [2022-07-21 11:06:55,804 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_read_mac_addr [2022-07-21 11:06:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_rgmii_ctrl [2022-07-21 11:06:55,805 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_rgmii_ctrl [2022-07-21 11:06:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2022-07-21 11:06:55,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2022-07-21 11:06:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_get_stats [2022-07-21 11:06:55,805 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_get_stats [2022-07-21 11:06:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_down [2022-07-21 11:06:55,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_down [2022-07-21 11:06:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_free_irq [2022-07-21 11:06:55,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_free_irq [2022-07-21 11:06:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_mar_set [2022-07-21 11:06:55,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_mar_set [2022-07-21 11:06:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_io_slot_reset [2022-07-21 11:06:55,807 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_io_slot_reset [2022-07-21 11:06:56,895 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 11:06:56,898 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 11:06:58,109 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 11:08:43,840 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 11:08:43,864 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 11:08:43,864 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-21 11:08:43,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:08:43 BoogieIcfgContainer [2022-07-21 11:08:43,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 11:08:43,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 11:08:43,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 11:08:43,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 11:08:43,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:06:50" (1/3) ... [2022-07-21 11:08:43,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e349625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:08:43, skipping insertion in model container [2022-07-21 11:08:43,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:06:55" (2/3) ... [2022-07-21 11:08:43,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e349625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:08:43, skipping insertion in model container [2022-07-21 11:08:43,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:08:43" (3/3) ... [2022-07-21 11:08:43,875 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i [2022-07-21 11:08:43,887 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 11:08:43,887 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 11:08:43,993 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 11:08:44,001 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@4bd7a726, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5385693b [2022-07-21 11:08:44,002 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 11:08:44,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 2973 states, 2076 states have (on average 1.3381502890173411) internal successors, (2778), 2135 states have internal predecessors, (2778), 738 states have call successors, (738), 159 states have call predecessors, (738), 158 states have return successors, (726), 707 states have call predecessors, (726), 726 states have call successors, (726) [2022-07-21 11:08:44,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-21 11:08:44,032 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:08:44,033 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-07-21 11:08:44,033 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:08:44,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:08:44,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1791158106, now seen corresponding path program 1 times [2022-07-21 11:08:44,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:08:44,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216508300] [2022-07-21 11:08:44,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:08:44,056 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:08:44,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:08:44,059 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) [2022-07-21 11:08:44,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 11:08:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:08:47,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 3521 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 11:08:47,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:08:47,338 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-21 11:08:47,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:08:47,341 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:08:47,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216508300] [2022-07-21 11:08:47,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1216508300] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:08:47,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:08:47,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:08:47,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387703581] [2022-07-21 11:08:47,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:08:47,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 11:08:47,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:08:47,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 11:08:47,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 11:08:47,385 INFO L87 Difference]: Start difference. First operand has 2973 states, 2076 states have (on average 1.3381502890173411) internal successors, (2778), 2135 states have internal predecessors, (2778), 738 states have call successors, (738), 159 states have call predecessors, (738), 158 states have return successors, (726), 707 states have call predecessors, (726), 726 states have call successors, (726) Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 11:08:48,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:08:48,118 INFO L93 Difference]: Finished difference Result 5941 states and 8622 transitions. [2022-07-21 11:08:48,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 11:08:48,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2022-07-21 11:08:48,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:08:48,150 INFO L225 Difference]: With dead ends: 5941 [2022-07-21 11:08:48,150 INFO L226 Difference]: Without dead ends: 2946 [2022-07-21 11:08:48,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:08:48,174 INFO L413 NwaCegarLoop]: 4219 mSDtfsCounter, 2 mSDsluCounter, 8429 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12648 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 11:08:48,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12648 Invalid, 29 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 11:08:48,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2022-07-21 11:08:48,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 2946. [2022-07-21 11:08:48,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2062 states have (on average 1.3258971871968963) internal successors, (2734), 2107 states have internal predecessors, (2734), 725 states have call successors, (725), 158 states have call predecessors, (725), 158 states have return successors, (728), 705 states have call predecessors, (728), 724 states have call successors, (728) [2022-07-21 11:08:48,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 4187 transitions. [2022-07-21 11:08:48,386 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 4187 transitions. Word has length 67 [2022-07-21 11:08:48,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:08:48,386 INFO L495 AbstractCegarLoop]: Abstraction has 2946 states and 4187 transitions. [2022-07-21 11:08:48,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 11:08:48,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 4187 transitions. [2022-07-21 11:08:48,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-21 11:08:48,393 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:08:48,393 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-07-21 11:08:48,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 11:08:48,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:08:48,616 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:08:48,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:08:48,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1276349690, now seen corresponding path program 1 times [2022-07-21 11:08:48,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:08:48,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83868705] [2022-07-21 11:08:48,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:08:48,620 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:08:48,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:08:48,622 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) [2022-07-21 11:08:48,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 11:08:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:08:51,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 3543 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:08:51,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:08:51,952 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-21 11:08:51,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:08:52,604 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-07-21 11:08:52,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:08:52,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83868705] [2022-07-21 11:08:52,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [83868705] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:08:52,605 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:08:52,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-21 11:08:52,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646005932] [2022-07-21 11:08:52,605 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:08:52,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 11:08:52,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:08:52,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 11:08:52,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:08:52,607 INFO L87 Difference]: Start difference. First operand 2946 states and 4187 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:08:54,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:08:54,620 INFO L93 Difference]: Finished difference Result 5888 states and 8381 transitions. [2022-07-21 11:08:54,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 11:08:54,622 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 69 [2022-07-21 11:08:54,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:08:54,644 INFO L225 Difference]: With dead ends: 5888 [2022-07-21 11:08:54,644 INFO L226 Difference]: Without dead ends: 2957 [2022-07-21 11:08:54,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-07-21 11:08:54,662 INFO L413 NwaCegarLoop]: 4173 mSDtfsCounter, 12 mSDsluCounter, 16663 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 20836 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 11:08:54,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 20836 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 11:08:54,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2022-07-21 11:08:54,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2955. [2022-07-21 11:08:54,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2955 states, 2070 states have (on average 1.327536231884058) internal successors, (2748), 2115 states have internal predecessors, (2748), 725 states have call successors, (725), 159 states have call predecessors, (725), 159 states have return successors, (732), 705 states have call predecessors, (732), 724 states have call successors, (732) [2022-07-21 11:08:54,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2955 states to 2955 states and 4205 transitions. [2022-07-21 11:08:54,777 INFO L78 Accepts]: Start accepts. Automaton has 2955 states and 4205 transitions. Word has length 69 [2022-07-21 11:08:54,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:08:54,778 INFO L495 AbstractCegarLoop]: Abstraction has 2955 states and 4205 transitions. [2022-07-21 11:08:54,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:08:54,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2955 states and 4205 transitions. [2022-07-21 11:08:54,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-21 11:08:54,782 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:08:54,782 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 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] [2022-07-21 11:08:54,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 11:08:55,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:08:55,004 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:08:55,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:08:55,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1246096550, now seen corresponding path program 2 times [2022-07-21 11:08:55,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:08:55,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405533233] [2022-07-21 11:08:55,007 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:08:55,007 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:08:55,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:08:55,009 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) [2022-07-21 11:08:55,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 11:08:57,514 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 11:08:57,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:08:57,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 3426 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:08:57,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:08:58,450 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-07-21 11:08:58,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:08:58,450 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:08:58,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405533233] [2022-07-21 11:08:58,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [405533233] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:08:58,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:08:58,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 11:08:58,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258900632] [2022-07-21 11:08:58,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:08:58,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:08:58,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:08:58,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:08:58,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:08:58,452 INFO L87 Difference]: Start difference. First operand 2955 states and 4205 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 11:08:59,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:08:59,602 INFO L93 Difference]: Finished difference Result 8824 states and 12677 transitions. [2022-07-21 11:08:59,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:08:59,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2022-07-21 11:08:59,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:08:59,651 INFO L225 Difference]: With dead ends: 8824 [2022-07-21 11:08:59,652 INFO L226 Difference]: Without dead ends: 5883 [2022-07-21 11:08:59,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 11:08:59,672 INFO L413 NwaCegarLoop]: 4974 mSDtfsCounter, 4145 mSDsluCounter, 14150 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4145 SdHoareTripleChecker+Valid, 19124 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 11:08:59,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4145 Valid, 19124 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 11:08:59,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5883 states. [2022-07-21 11:08:59,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5883 to 5877. [2022-07-21 11:08:59,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5877 states, 4117 states have (on average 1.3283944619868837) internal successors, (5469), 4206 states have internal predecessors, (5469), 1442 states have call successors, (1442), 317 states have call predecessors, (1442), 317 states have return successors, (1512), 1403 states have call predecessors, (1512), 1441 states have call successors, (1512) [2022-07-21 11:08:59,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5877 states to 5877 states and 8423 transitions. [2022-07-21 11:08:59,918 INFO L78 Accepts]: Start accepts. Automaton has 5877 states and 8423 transitions. Word has length 73 [2022-07-21 11:08:59,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:08:59,920 INFO L495 AbstractCegarLoop]: Abstraction has 5877 states and 8423 transitions. [2022-07-21 11:08:59,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 11:08:59,921 INFO L276 IsEmpty]: Start isEmpty. Operand 5877 states and 8423 transitions. [2022-07-21 11:08:59,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2022-07-21 11:08:59,962 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:08:59,963 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 11, 11, 6, 6, 6, 6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:09:00,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 11:09:00,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:09:00,187 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:09:00,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:09:00,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1430131954, now seen corresponding path program 1 times [2022-07-21 11:09:00,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:09:00,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886284571] [2022-07-21 11:09:00,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:09:00,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:09:00,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:09:00,196 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) [2022-07-21 11:09:00,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 11:09:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:09:05,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 6683 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 11:09:05,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:09:05,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1702 backedges. 70 proven. 10 refuted. 0 times theorem prover too weak. 1622 trivial. 0 not checked. [2022-07-21 11:09:05,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:09:08,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1702 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2022-07-21 11:09:08,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:09:08,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886284571] [2022-07-21 11:09:08,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886284571] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:09:08,298 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:09:08,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-07-21 11:09:08,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920132531] [2022-07-21 11:09:08,298 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:09:08,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 11:09:08,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:09:08,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 11:09:08,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-21 11:09:08,302 INFO L87 Difference]: Start difference. First operand 5877 states and 8423 transitions. Second operand has 14 states, 14 states have (on average 47.214285714285715) internal successors, (661), 14 states have internal predecessors, (661), 2 states have call successors, (209), 2 states have call predecessors, (209), 4 states have return successors, (209), 2 states have call predecessors, (209), 2 states have call successors, (209) [2022-07-21 11:09:13,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:09:13,788 INFO L93 Difference]: Finished difference Result 11785 states and 16930 transitions. [2022-07-21 11:09:13,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-21 11:09:13,791 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 47.214285714285715) internal successors, (661), 14 states have internal predecessors, (661), 2 states have call successors, (209), 2 states have call predecessors, (209), 4 states have return successors, (209), 2 states have call predecessors, (209), 2 states have call successors, (209) Word has length 730 [2022-07-21 11:09:13,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:09:13,830 INFO L225 Difference]: With dead ends: 11785 [2022-07-21 11:09:13,830 INFO L226 Difference]: Without dead ends: 5921 [2022-07-21 11:09:13,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1470 GetRequests, 1446 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=204, Invalid=446, Unknown=0, NotChecked=0, Total=650 [2022-07-21 11:09:13,861 INFO L413 NwaCegarLoop]: 4176 mSDtfsCounter, 46 mSDsluCounter, 20849 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 25025 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:09:13,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 25025 Invalid, 355 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-21 11:09:13,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5921 states. [2022-07-21 11:09:14,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5921 to 5893. [2022-07-21 11:09:14,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5893 states, 4131 states have (on average 1.3294601791333818) internal successors, (5492), 4221 states have internal predecessors, (5492), 1442 states have call successors, (1442), 318 states have call predecessors, (1442), 319 states have return successors, (1509), 1403 states have call predecessors, (1509), 1441 states have call successors, (1509) [2022-07-21 11:09:14,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5893 states to 5893 states and 8443 transitions. [2022-07-21 11:09:14,081 INFO L78 Accepts]: Start accepts. Automaton has 5893 states and 8443 transitions. Word has length 730 [2022-07-21 11:09:14,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:09:14,084 INFO L495 AbstractCegarLoop]: Abstraction has 5893 states and 8443 transitions. [2022-07-21 11:09:14,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 47.214285714285715) internal successors, (661), 14 states have internal predecessors, (661), 2 states have call successors, (209), 2 states have call predecessors, (209), 4 states have return successors, (209), 2 states have call predecessors, (209), 2 states have call successors, (209) [2022-07-21 11:09:14,084 INFO L276 IsEmpty]: Start isEmpty. Operand 5893 states and 8443 transitions. [2022-07-21 11:09:14,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2022-07-21 11:09:14,126 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:09:14,129 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 20, 20, 12, 12, 12, 10, 10, 10, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:09:14,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 11:09:14,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:09:14,343 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:09:14,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:09:14,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1482013768, now seen corresponding path program 1 times [2022-07-21 11:09:14,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:09:14,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [811680803] [2022-07-21 11:09:14,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:09:14,350 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:09:14,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:09:14,352 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) [2022-07-21 11:09:14,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 11:09:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:09:19,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 6814 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 11:09:19,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:09:20,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2013 backedges. 241 proven. 3 refuted. 0 times theorem prover too weak. 1769 trivial. 0 not checked. [2022-07-21 11:09:20,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:09:21,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2013 backedges. 29 proven. 23 refuted. 0 times theorem prover too weak. 1961 trivial. 0 not checked. [2022-07-21 11:09:21,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:09:21,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [811680803] [2022-07-21 11:09:21,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [811680803] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:09:21,847 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:09:21,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-07-21 11:09:21,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175081323] [2022-07-21 11:09:21,848 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:09:21,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 11:09:21,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:09:21,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 11:09:21,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-21 11:09:21,850 INFO L87 Difference]: Start difference. First operand 5893 states and 8443 transitions. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 2 states have call successors, (218), 2 states have call predecessors, (218), 4 states have return successors, (218), 2 states have call predecessors, (218), 2 states have call successors, (218) [2022-07-21 11:09:23,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:09:23,686 INFO L93 Difference]: Finished difference Result 11797 states and 16917 transitions. [2022-07-21 11:09:23,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 11:09:23,688 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 2 states have call successors, (218), 2 states have call predecessors, (218), 4 states have return successors, (218), 2 states have call predecessors, (218), 2 states have call successors, (218) Word has length 828 [2022-07-21 11:09:23,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:09:23,724 INFO L225 Difference]: With dead ends: 11797 [2022-07-21 11:09:23,724 INFO L226 Difference]: Without dead ends: 5923 [2022-07-21 11:09:23,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1660 GetRequests, 1646 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2022-07-21 11:09:23,752 INFO L413 NwaCegarLoop]: 4174 mSDtfsCounter, 42 mSDsluCounter, 12507 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 16681 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:09:23,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 16681 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-21 11:09:23,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5923 states. [2022-07-21 11:09:23,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5923 to 5893. [2022-07-21 11:09:23,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5893 states, 4132 states have (on average 1.3284123910939012) internal successors, (5489), 4220 states have internal predecessors, (5489), 1442 states have call successors, (1442), 319 states have call predecessors, (1442), 318 states have return successors, (1500), 1403 states have call predecessors, (1500), 1441 states have call successors, (1500) [2022-07-21 11:09:23,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5893 states to 5893 states and 8431 transitions. [2022-07-21 11:09:23,944 INFO L78 Accepts]: Start accepts. Automaton has 5893 states and 8431 transitions. Word has length 828 [2022-07-21 11:09:23,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:09:23,944 INFO L495 AbstractCegarLoop]: Abstraction has 5893 states and 8431 transitions. [2022-07-21 11:09:23,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 2 states have call successors, (218), 2 states have call predecessors, (218), 4 states have return successors, (218), 2 states have call predecessors, (218), 2 states have call successors, (218) [2022-07-21 11:09:23,945 INFO L276 IsEmpty]: Start isEmpty. Operand 5893 states and 8431 transitions. [2022-07-21 11:09:23,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2022-07-21 11:09:23,985 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:09:23,986 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 20, 20, 12, 12, 12, 12, 10, 10, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:09:24,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 11:09:24,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:09:24,207 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:09:24,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:09:24,208 INFO L85 PathProgramCache]: Analyzing trace with hash 212023624, now seen corresponding path program 2 times [2022-07-21 11:09:24,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:09:24,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9864941] [2022-07-21 11:09:24,212 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:09:24,213 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:09:24,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:09:24,214 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) [2022-07-21 11:09:24,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 11:09:26,982 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 11:09:26,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:09:27,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 3481 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 11:09:27,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:09:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2046 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 1572 trivial. 0 not checked. [2022-07-21 11:09:27,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:09:27,555 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:09:27,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9864941] [2022-07-21 11:09:27,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [9864941] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:09:27,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:09:27,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 11:09:27,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283999231] [2022-07-21 11:09:27,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:09:27,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:09:27,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:09:27,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:09:27,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:09:27,557 INFO L87 Difference]: Start difference. First operand 5893 states and 8431 transitions. Second operand has 5 states, 5 states have (on average 73.8) internal successors, (369), 4 states have internal predecessors, (369), 2 states have call successors, (113), 2 states have call predecessors, (113), 3 states have return successors, (112), 3 states have call predecessors, (112), 2 states have call successors, (112) [2022-07-21 11:09:28,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:09:28,075 INFO L93 Difference]: Finished difference Result 11759 states and 17033 transitions. [2022-07-21 11:09:28,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:09:28,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 4 states have internal predecessors, (369), 2 states have call successors, (113), 2 states have call predecessors, (113), 3 states have return successors, (112), 3 states have call predecessors, (112), 2 states have call successors, (112) Word has length 830 [2022-07-21 11:09:28,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:09:28,110 INFO L225 Difference]: With dead ends: 11759 [2022-07-21 11:09:28,110 INFO L226 Difference]: Without dead ends: 5905 [2022-07-21 11:09:28,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 829 GetRequests, 826 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:09:28,129 INFO L413 NwaCegarLoop]: 4178 mSDtfsCounter, 2 mSDsluCounter, 12506 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 16684 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 11:09:28,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 16684 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 11:09:28,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5905 states. [2022-07-21 11:09:28,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5905 to 5903. [2022-07-21 11:09:28,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5903 states, 4139 states have (on average 1.327856970282677) internal successors, (5496), 4228 states have internal predecessors, (5496), 1442 states have call successors, (1442), 319 states have call predecessors, (1442), 321 states have return successors, (1542), 1405 states have call predecessors, (1542), 1441 states have call successors, (1542) [2022-07-21 11:09:28,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5903 states to 5903 states and 8480 transitions. [2022-07-21 11:09:28,313 INFO L78 Accepts]: Start accepts. Automaton has 5903 states and 8480 transitions. Word has length 830 [2022-07-21 11:09:28,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:09:28,315 INFO L495 AbstractCegarLoop]: Abstraction has 5903 states and 8480 transitions. [2022-07-21 11:09:28,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 4 states have internal predecessors, (369), 2 states have call successors, (113), 2 states have call predecessors, (113), 3 states have return successors, (112), 3 states have call predecessors, (112), 2 states have call successors, (112) [2022-07-21 11:09:28,316 INFO L276 IsEmpty]: Start isEmpty. Operand 5903 states and 8480 transitions. [2022-07-21 11:09:28,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2022-07-21 11:09:28,341 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:09:28,341 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 12, 12, 12, 11, 11, 11, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:09:28,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 11:09:28,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:09:28,568 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:09:28,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:09:28,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1701709889, now seen corresponding path program 1 times [2022-07-21 11:09:28,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:09:28,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27243076] [2022-07-21 11:09:28,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:09:28,573 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:09:28,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:09:28,574 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) [2022-07-21 11:09:28,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 11:09:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:09:34,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 6795 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:09:34,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:09:34,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 1755 trivial. 0 not checked. [2022-07-21 11:09:34,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:09:34,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:09:34,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27243076] [2022-07-21 11:09:34,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27243076] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:09:34,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:09:34,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:09:34,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058804107] [2022-07-21 11:09:34,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:09:34,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:09:34,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:09:34,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:09:34,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:09:34,424 INFO L87 Difference]: Start difference. First operand 5903 states and 8480 transitions. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 2 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2022-07-21 11:09:35,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:09:35,484 INFO L93 Difference]: Finished difference Result 17083 states and 24440 transitions. [2022-07-21 11:09:35,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:09:35,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 2 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) Word has length 772 [2022-07-21 11:09:35,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:09:35,531 INFO L225 Difference]: With dead ends: 17083 [2022-07-21 11:09:35,531 INFO L226 Difference]: Without dead ends: 11219 [2022-07-21 11:09:35,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 771 GetRequests, 770 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:09:35,549 INFO L413 NwaCegarLoop]: 4825 mSDtfsCounter, 3744 mSDsluCounter, 4103 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3744 SdHoareTripleChecker+Valid, 8928 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 11:09:35,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3744 Valid, 8928 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 11:09:35,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11219 states. [2022-07-21 11:09:35,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11219 to 11207. [2022-07-21 11:09:35,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11207 states, 7836 states have (on average 1.3237621235324144) internal successors, (10373), 8004 states have internal predecessors, (10373), 2734 states have call successors, (2734), 631 states have call predecessors, (2734), 636 states have return successors, (2898), 2659 states have call predecessors, (2898), 2733 states have call successors, (2898) [2022-07-21 11:09:35,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11207 states to 11207 states and 16005 transitions. [2022-07-21 11:09:35,931 INFO L78 Accepts]: Start accepts. Automaton has 11207 states and 16005 transitions. Word has length 772 [2022-07-21 11:09:35,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:09:35,931 INFO L495 AbstractCegarLoop]: Abstraction has 11207 states and 16005 transitions. [2022-07-21 11:09:35,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 2 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2022-07-21 11:09:35,932 INFO L276 IsEmpty]: Start isEmpty. Operand 11207 states and 16005 transitions. [2022-07-21 11:09:35,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 744 [2022-07-21 11:09:35,977 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:09:35,977 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 12, 11, 11, 6, 6, 6, 6, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:09:36,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 11:09:36,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:09:36,199 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:09:36,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:09:36,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1021734738, now seen corresponding path program 1 times [2022-07-21 11:09:36,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:09:36,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085820713] [2022-07-21 11:09:36,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:09:36,205 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:09:36,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:09:36,206 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) [2022-07-21 11:09:36,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 11:09:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:09:41,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 6775 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:09:41,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:09:42,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1789 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 1685 trivial. 0 not checked. [2022-07-21 11:09:42,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:09:42,020 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:09:42,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085820713] [2022-07-21 11:09:42,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085820713] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:09:42,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:09:42,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:09:42,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148946016] [2022-07-21 11:09:42,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:09:42,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:09:42,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:09:42,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:09:42,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:09:42,022 INFO L87 Difference]: Start difference. First operand 11207 states and 16005 transitions. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) [2022-07-21 11:09:43,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:09:43,399 INFO L93 Difference]: Finished difference Result 31691 states and 45377 transitions. [2022-07-21 11:09:43,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:09:43,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) Word has length 743 [2022-07-21 11:09:43,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:09:43,517 INFO L225 Difference]: With dead ends: 31691 [2022-07-21 11:09:43,517 INFO L226 Difference]: Without dead ends: 20523 [2022-07-21 11:09:43,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 742 GetRequests, 741 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:09:43,569 INFO L413 NwaCegarLoop]: 4801 mSDtfsCounter, 3542 mSDsluCounter, 4050 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3542 SdHoareTripleChecker+Valid, 8851 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:09:43,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3542 Valid, 8851 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-21 11:09:43,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20523 states. [2022-07-21 11:09:44,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20523 to 20487. [2022-07-21 11:09:44,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20487 states, 14340 states have (on average 1.3233612273361228) internal successors, (18977), 14668 states have internal predecessors, (18977), 4968 states have call successors, (4968), 1171 states have call predecessors, (4968), 1178 states have return successors, (5446), 4815 states have call predecessors, (5446), 4967 states have call successors, (5446) [2022-07-21 11:09:44,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20487 states to 20487 states and 29391 transitions. [2022-07-21 11:09:44,421 INFO L78 Accepts]: Start accepts. Automaton has 20487 states and 29391 transitions. Word has length 743 [2022-07-21 11:09:44,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:09:44,421 INFO L495 AbstractCegarLoop]: Abstraction has 20487 states and 29391 transitions. [2022-07-21 11:09:44,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) [2022-07-21 11:09:44,422 INFO L276 IsEmpty]: Start isEmpty. Operand 20487 states and 29391 transitions. [2022-07-21 11:09:44,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 779 [2022-07-21 11:09:44,454 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:09:44,455 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 21, 21, 18, 18, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:09:44,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 11:09:44,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:09:44,672 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:09:44,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:09:44,672 INFO L85 PathProgramCache]: Analyzing trace with hash -6334035, now seen corresponding path program 1 times [2022-07-21 11:09:44,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:09:44,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [319804570] [2022-07-21 11:09:44,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:09:44,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:09:44,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:09:44,679 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) [2022-07-21 11:09:44,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 11:09:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:09:50,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 6711 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:09:50,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:09:50,716 INFO L134 CoverageAnalysis]: Checked inductivity of 2715 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 2685 trivial. 0 not checked. [2022-07-21 11:09:50,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:09:50,716 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:09:50,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [319804570] [2022-07-21 11:09:50,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [319804570] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:09:50,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:09:50,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:09:50,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708730785] [2022-07-21 11:09:50,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:09:50,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:09:50,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:09:50,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:09:50,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:09:50,721 INFO L87 Difference]: Start difference. First operand 20487 states and 29391 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 2 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) [2022-07-21 11:09:52,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:09:52,188 INFO L93 Difference]: Finished difference Result 60591 states and 86605 transitions. [2022-07-21 11:09:52,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:09:52,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 2 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) Word has length 778 [2022-07-21 11:09:52,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:09:52,396 INFO L225 Difference]: With dead ends: 60591 [2022-07-21 11:09:52,397 INFO L226 Difference]: Without dead ends: 40143 [2022-07-21 11:09:52,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 776 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:09:52,471 INFO L413 NwaCegarLoop]: 4883 mSDtfsCounter, 3981 mSDsluCounter, 4091 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3981 SdHoareTripleChecker+Valid, 8974 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 11:09:52,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3981 Valid, 8974 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 11:09:52,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40143 states. [2022-07-21 11:09:53,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40143 to 40135. [2022-07-21 11:09:53,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40135 states, 27940 states have (on average 1.3144237652111668) internal successors, (36725), 28592 states have internal predecessors, (36725), 9840 states have call successors, (9840), 2339 states have call predecessors, (9840), 2354 states have return successors, (10692), 9539 states have call predecessors, (10692), 9839 states have call successors, (10692) [2022-07-21 11:09:54,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40135 states to 40135 states and 57257 transitions. [2022-07-21 11:09:54,230 INFO L78 Accepts]: Start accepts. Automaton has 40135 states and 57257 transitions. Word has length 778 [2022-07-21 11:09:54,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:09:54,230 INFO L495 AbstractCegarLoop]: Abstraction has 40135 states and 57257 transitions. [2022-07-21 11:09:54,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 2 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) [2022-07-21 11:09:54,231 INFO L276 IsEmpty]: Start isEmpty. Operand 40135 states and 57257 transitions. [2022-07-21 11:09:54,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2022-07-21 11:09:54,273 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:09:54,273 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 13, 13, 12, 10, 10, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:09:54,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-21 11:09:54,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:09:54,496 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:09:54,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:09:54,496 INFO L85 PathProgramCache]: Analyzing trace with hash -42087101, now seen corresponding path program 1 times [2022-07-21 11:09:54,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:09:54,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012017847] [2022-07-21 11:09:54,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:09:54,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:09:54,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:09:54,503 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) [2022-07-21 11:09:54,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-21 11:09:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:09:59,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 5635 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:09:59,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:10:00,229 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2022-07-21 11:10:00,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:10:00,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:10:00,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012017847] [2022-07-21 11:10:00,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012017847] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:10:00,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:10:00,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:10:00,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891807325] [2022-07-21 11:10:00,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:10:00,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:10:00,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:10:00,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:10:00,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:10:00,232 INFO L87 Difference]: Start difference. First operand 40135 states and 57257 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2022-07-21 11:10:02,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:10:02,310 INFO L93 Difference]: Finished difference Result 119119 states and 169735 transitions. [2022-07-21 11:10:02,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:10:02,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 514 [2022-07-21 11:10:02,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:10:02,765 INFO L225 Difference]: With dead ends: 119119 [2022-07-21 11:10:02,765 INFO L226 Difference]: Without dead ends: 79023 [2022-07-21 11:10:02,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 512 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:10:02,901 INFO L413 NwaCegarLoop]: 5346 mSDtfsCounter, 4047 mSDsluCounter, 4118 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4047 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 11:10:02,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4047 Valid, 9464 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 11:10:03,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79023 states. [2022-07-21 11:10:05,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79023 to 79007. [2022-07-21 11:10:05,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79007 states, 55036 states have (on average 1.3132676793371612) internal successors, (72277), 56328 states have internal predecessors, (72277), 19312 states have call successors, (19312), 4627 states have call predecessors, (19312), 4658 states have return successors, (20916), 18707 states have call predecessors, (20916), 19311 states have call successors, (20916) [2022-07-21 11:10:06,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79007 states to 79007 states and 112505 transitions. [2022-07-21 11:10:06,082 INFO L78 Accepts]: Start accepts. Automaton has 79007 states and 112505 transitions. Word has length 514 [2022-07-21 11:10:06,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:10:06,082 INFO L495 AbstractCegarLoop]: Abstraction has 79007 states and 112505 transitions. [2022-07-21 11:10:06,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2022-07-21 11:10:06,084 INFO L276 IsEmpty]: Start isEmpty. Operand 79007 states and 112505 transitions. [2022-07-21 11:10:06,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 920 [2022-07-21 11:10:06,266 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:10:06,267 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 25, 25, 17, 17, 12, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:10:06,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-21 11:10:06,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:10:06,468 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:10:06,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:10:06,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1112569729, now seen corresponding path program 1 times [2022-07-21 11:10:06,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:10:06,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82841978] [2022-07-21 11:10:06,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:10:06,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:10:06,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:10:06,474 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) [2022-07-21 11:10:06,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-21 11:10:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:10:13,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 7889 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:10:13,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:10:13,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2762 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 2659 trivial. 0 not checked. [2022-07-21 11:10:13,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:10:13,427 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:10:13,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82841978] [2022-07-21 11:10:13,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82841978] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:10:13,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:10:13,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:10:13,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140145030] [2022-07-21 11:10:13,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:10:13,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:10:13,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:10:13,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:10:13,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:10:13,430 INFO L87 Difference]: Start difference. First operand 79007 states and 112505 transitions. Second operand has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 2 states have call successors, (136), 2 states have call predecessors, (136), 2 states have return successors, (135), 2 states have call predecessors, (135), 2 states have call successors, (135) [2022-07-21 11:10:16,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:10:16,855 INFO L93 Difference]: Finished difference Result 223435 states and 317065 transitions. [2022-07-21 11:10:16,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:10:16,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 2 states have call successors, (136), 2 states have call predecessors, (136), 2 states have return successors, (135), 2 states have call predecessors, (135), 2 states have call successors, (135) Word has length 919 [2022-07-21 11:10:16,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:10:17,751 INFO L225 Difference]: With dead ends: 223435 [2022-07-21 11:10:17,752 INFO L226 Difference]: Without dead ends: 144467 [2022-07-21 11:10:17,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 918 GetRequests, 917 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:10:17,989 INFO L413 NwaCegarLoop]: 6023 mSDtfsCounter, 3580 mSDsluCounter, 4139 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3580 SdHoareTripleChecker+Valid, 10162 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 11:10:17,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3580 Valid, 10162 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 11:10:18,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144467 states. [2022-07-21 11:10:22,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144467 to 144395. [2022-07-21 11:10:22,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144395 states, 100092 states have (on average 1.3090456779762618) internal successors, (131025), 102504 states have internal predecessors, (131025), 35372 states have call successors, (35372), 8847 states have call predecessors, (35372), 8930 states have return successors, (38110), 34275 states have call predecessors, (38110), 35371 states have call successors, (38110) [2022-07-21 11:10:23,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144395 states to 144395 states and 204507 transitions. [2022-07-21 11:10:23,325 INFO L78 Accepts]: Start accepts. Automaton has 144395 states and 204507 transitions. Word has length 919 [2022-07-21 11:10:23,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:10:23,325 INFO L495 AbstractCegarLoop]: Abstraction has 144395 states and 204507 transitions. [2022-07-21 11:10:23,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 2 states have call successors, (136), 2 states have call predecessors, (136), 2 states have return successors, (135), 2 states have call predecessors, (135), 2 states have call successors, (135) [2022-07-21 11:10:23,326 INFO L276 IsEmpty]: Start isEmpty. Operand 144395 states and 204507 transitions. [2022-07-21 11:10:23,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2022-07-21 11:10:23,506 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:10:23,506 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 20, 12, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:10:23,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-21 11:10:23,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:10:23,707 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:10:23,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:10:23,708 INFO L85 PathProgramCache]: Analyzing trace with hash -617061381, now seen corresponding path program 1 times [2022-07-21 11:10:23,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:10:23,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711349151] [2022-07-21 11:10:23,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:10:23,712 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:10:23,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:10:23,713 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) [2022-07-21 11:10:23,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-21 11:10:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:10:31,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 7018 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 11:10:31,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:10:35,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2573 backedges. 740 proven. 80 refuted. 0 times theorem prover too weak. 1753 trivial. 0 not checked. [2022-07-21 11:10:35,384 INFO L328 TraceCheckSpWp]: Computing backward predicates...