./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.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 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 02:13:52,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 02:13:52,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 02:13:52,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 02:13:52,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 02:13:52,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 02:13:52,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 02:13:52,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 02:13:52,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 02:13:52,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 02:13:52,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 02:13:52,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 02:13:52,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 02:13:52,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 02:13:52,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 02:13:52,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 02:13:52,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 02:13:52,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 02:13:52,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 02:13:52,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 02:13:52,137 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 02:13:52,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 02:13:52,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 02:13:52,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 02:13:52,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 02:13:52,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 02:13:52,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 02:13:52,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 02:13:52,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 02:13:52,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 02:13:52,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 02:13:52,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 02:13:52,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 02:13:52,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 02:13:52,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 02:13:52,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 02:13:52,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 02:13:52,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 02:13:52,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 02:13:52,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 02:13:52,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 02:13:52,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 02:13:52,159 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 02:13:52,192 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 02:13:52,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 02:13:52,195 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 02:13:52,195 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 02:13:52,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 02:13:52,196 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 02:13:52,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 02:13:52,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 02:13:52,197 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 02:13:52,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 02:13:52,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 02:13:52,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 02:13:52,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 02:13:52,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 02:13:52,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 02:13:52,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 02:13:52,200 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 02:13:52,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 02:13:52,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 02:13:52,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 02:13:52,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 02:13:52,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 02:13:52,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 02:13:52,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 02:13:52,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 02:13:52,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 02:13:52,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 02:13:52,202 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 02:13:52,203 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 02:13:52,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 02:13:52,203 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 [2022-07-14 02:13:52,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 02:13:52,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 02:13:52,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 02:13:52,498 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 02:13:52,499 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 02:13:52,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-14 02:13:52,562 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbca88140/354773524c534475b71e843b961cbbc4/FLAG0b57e2fd6 [2022-07-14 02:13:53,274 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 02:13:53,274 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-14 02:13:53,325 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbca88140/354773524c534475b71e843b961cbbc4/FLAG0b57e2fd6 [2022-07-14 02:13:53,574 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbca88140/354773524c534475b71e843b961cbbc4 [2022-07-14 02:13:53,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 02:13:53,578 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 02:13:53,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 02:13:53,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 02:13:53,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 02:13:53,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:13:53" (1/1) ... [2022-07-14 02:13:53,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ff622d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:13:53, skipping insertion in model container [2022-07-14 02:13:53,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:13:53" (1/1) ... [2022-07-14 02:13:53,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 02:13:53,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 02:13:55,666 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[297077,297090] [2022-07-14 02:13:55,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:13:55,774 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 02:13:56,174 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: data = data & 4294967171U [7881] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-14 02:13:56,183 INFO L158 Benchmark]: Toolchain (without parser) took 2604.29ms. Allocated memory was 90.2MB in the beginning and 172.0MB in the end (delta: 81.8MB). Free memory was 59.6MB in the beginning and 93.9MB in the end (delta: -34.3MB). Peak memory consumption was 84.2MB. Max. memory is 16.1GB. [2022-07-14 02:13:56,184 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 90.2MB. Free memory was 61.2MB in the beginning and 61.2MB in the end (delta: 27.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 02:13:56,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2602.73ms. Allocated memory was 90.2MB in the beginning and 172.0MB in the end (delta: 81.8MB). Free memory was 59.6MB in the beginning and 93.9MB in the end (delta: -34.3MB). Peak memory consumption was 84.2MB. Max. memory is 16.1GB. [2022-07-14 02:13:56,188 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 90.2MB. Free memory was 61.2MB in the beginning and 61.2MB in the end (delta: 27.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2602.73ms. Allocated memory was 90.2MB in the beginning and 172.0MB in the end (delta: 81.8MB). Free memory was 59.6MB in the beginning and 93.9MB in the end (delta: -34.3MB). Peak memory consumption was 84.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: data = data & 4294967171U [7881] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: data = data & 4294967171U [7881]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.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 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 02:13:57,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 02:13:57,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 02:13:57,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 02:13:57,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 02:13:57,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 02:13:57,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 02:13:57,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 02:13:57,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 02:13:57,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 02:13:57,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 02:13:57,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 02:13:57,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 02:13:57,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 02:13:57,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 02:13:57,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 02:13:57,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 02:13:57,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 02:13:57,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 02:13:58,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 02:13:58,001 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 02:13:58,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 02:13:58,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 02:13:58,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 02:13:58,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 02:13:58,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 02:13:58,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 02:13:58,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 02:13:58,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 02:13:58,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 02:13:58,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 02:13:58,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 02:13:58,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 02:13:58,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 02:13:58,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 02:13:58,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 02:13:58,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 02:13:58,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 02:13:58,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 02:13:58,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 02:13:58,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 02:13:58,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 02:13:58,027 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 02:13:58,066 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 02:13:58,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 02:13:58,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 02:13:58,067 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 02:13:58,067 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 02:13:58,068 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 02:13:58,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 02:13:58,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 02:13:58,069 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 02:13:58,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 02:13:58,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 02:13:58,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 02:13:58,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 02:13:58,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 02:13:58,071 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 02:13:58,071 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 02:13:58,071 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 02:13:58,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 02:13:58,071 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 02:13:58,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 02:13:58,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 02:13:58,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 02:13:58,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 02:13:58,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 02:13:58,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 02:13:58,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 02:13:58,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 02:13:58,073 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 02:13:58,073 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 02:13:58,074 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 02:13:58,074 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 02:13:58,074 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 02:13:58,074 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 02:13:58,075 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 [2022-07-14 02:13:58,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 02:13:58,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 02:13:58,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 02:13:58,414 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 02:13:58,414 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 02:13:58,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-14 02:13:58,475 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a9fcd4fb/c76ff0b0c1524d2bb38d5e17a261c742/FLAG69dc53041 [2022-07-14 02:13:59,214 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 02:13:59,214 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-14 02:13:59,255 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a9fcd4fb/c76ff0b0c1524d2bb38d5e17a261c742/FLAG69dc53041 [2022-07-14 02:13:59,281 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a9fcd4fb/c76ff0b0c1524d2bb38d5e17a261c742 [2022-07-14 02:13:59,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 02:13:59,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 02:13:59,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 02:13:59,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 02:13:59,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 02:13:59,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:13:59" (1/1) ... [2022-07-14 02:13:59,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f1e9752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:13:59, skipping insertion in model container [2022-07-14 02:13:59,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:13:59" (1/1) ... [2022-07-14 02:13:59,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 02:13:59,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 02:14:01,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[297077,297090] [2022-07-14 02:14:01,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:14:01,467 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 02:14:01,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 02:14:01,962 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[297077,297090] [2022-07-14 02:14:01,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:14:01,987 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 02:14:02,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[297077,297090] [2022-07-14 02:14:02,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:14:02,643 INFO L208 MainTranslator]: Completed translation [2022-07-14 02:14:02,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:02 WrapperNode [2022-07-14 02:14:02,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 02:14:02,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 02:14:02,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 02:14:02,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 02:14:02,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:02" (1/1) ... [2022-07-14 02:14:02,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:02" (1/1) ... [2022-07-14 02:14:02,952 INFO L137 Inliner]: procedures = 371, calls = 3641, calls flagged for inlining = 134, calls inlined = 130, statements flattened = 6809 [2022-07-14 02:14:02,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 02:14:02,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 02:14:02,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 02:14:02,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 02:14:02,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:02" (1/1) ... [2022-07-14 02:14:02,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:02" (1/1) ... [2022-07-14 02:14:03,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:02" (1/1) ... [2022-07-14 02:14:03,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:02" (1/1) ... [2022-07-14 02:14:03,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:02" (1/1) ... [2022-07-14 02:14:03,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:02" (1/1) ... [2022-07-14 02:14:03,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:02" (1/1) ... [2022-07-14 02:14:03,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 02:14:03,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 02:14:03,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 02:14:03,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 02:14:03,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:02" (1/1) ... [2022-07-14 02:14:03,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 02:14:03,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:14:03,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 02:14:03,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 02:14:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-14 02:14:03,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-14 02:14:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure ring_desc_base [2022-07-14 02:14:03,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_desc_base [2022-07-14 02:14:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 02:14:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure thunderbolt_shutdown_and_free [2022-07-14 02:14:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thunderbolt_shutdown_and_free [2022-07-14 02:14:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_shutdown [2022-07-14 02:14:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_shutdown [2022-07-14 02:14:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-14 02:14:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-14 02:14:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_port [2022-07-14 02:14:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_port [2022-07-14 02:14:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_active [2022-07-14 02:14:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_active [2022-07-14 02:14:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_tail_init [2022-07-14 02:14:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_tail_init [2022-07-14 02:14:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 02:14:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 02:14:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 02:14:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 02:14:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 02:14:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 02:14:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 02:14:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 02:14:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 02:14:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_read_n [2022-07-14 02:14:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_read_n [2022-07-14 02:14:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 02:14:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 02:14:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_tx [2022-07-14 02:14:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_tx [2022-07-14 02:14:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_read [2022-07-14 02:14:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_read [2022-07-14 02:14:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure ring_work [2022-07-14 02:14:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_work [2022-07-14 02:14:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_get_drom_offset [2022-07-14 02:14:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_get_drom_offset [2022-07-14 02:14:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2022-07-14 02:14:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2022-07-14 02:14:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_free [2022-07-14 02:14:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_free [2022-07-14 02:14:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-07-14 02:14:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-07-14 02:14:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite16desc [2022-07-14 02:14:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite16desc [2022-07-14 02:14:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32options [2022-07-14 02:14:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32options [2022-07-14 02:14:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_free [2022-07-14 02:14:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_free [2022-07-14 02:14:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_active [2022-07-14 02:14:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_active [2022-07-14 02:14:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-07-14 02:14:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-07-14 02:14:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure tb_find_cap [2022-07-14 02:14:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_find_cap [2022-07-14 02:14:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 02:14:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 02:14:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 02:14:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 02:14:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_deactivate [2022-07-14 02:14:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_deactivate [2022-07-14 02:14:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_write [2022-07-14 02:14:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_write [2022-07-14 02:14:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx_submit [2022-07-14 02:14:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx_submit [2022-07-14 02:14:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_disable_interrupts [2022-07-14 02:14:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_disable_interrupts [2022-07-14 02:14:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-07-14 02:14:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-07-14 02:14:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure get_route [2022-07-14 02:14:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure get_route [2022-07-14 02:14:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure check_header [2022-07-14 02:14:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure check_header [2022-07-14 02:14:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 02:14:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 02:14:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_alloc [2022-07-14 02:14:03,471 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_alloc [2022-07-14 02:14:03,471 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-14 02:14:03,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-14 02:14:03,471 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_suspend_noirq [2022-07-14 02:14:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_suspend_noirq [2022-07-14 02:14:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_read [2022-07-14 02:14:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_read [2022-07-14 02:14:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_port_active [2022-07-14 02:14:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_port_active [2022-07-14 02:14:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure tb_activate_pcie_devices [2022-07-14 02:14:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_activate_pcie_devices [2022-07-14 02:14:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_suspend [2022-07-14 02:14:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_suspend [2022-07-14 02:14:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_alloc [2022-07-14 02:14:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_alloc [2022-07-14 02:14:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure tb_drom_read_uid_only [2022-07-14 02:14:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_drom_read_uid_only [2022-07-14 02:14:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 02:14:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 02:14:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 02:14:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_write [2022-07-14 02:14:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_write [2022-07-14 02:14:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_activate [2022-07-14 02:14:03,478 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_activate [2022-07-14 02:14:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_interrupt_work [2022-07-14 02:14:03,478 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_interrupt_work [2022-07-14 02:14:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 02:14:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-14 02:14:03,479 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-14 02:14:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-07-14 02:14:03,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-07-14 02:14:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-14 02:14:03,479 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-14 02:14:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-07-14 02:14:03,480 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-07-14 02:14:03,483 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read_raw [2022-07-14 02:14:03,483 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read_raw [2022-07-14 02:14:03,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 02:14:03,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 02:14:03,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 02:14:03,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 02:14:03,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 02:14:03,485 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_long [2022-07-14 02:14:03,485 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_long [2022-07-14 02:14:03,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 02:14:03,488 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_set_unpplugged [2022-07-14 02:14:03,488 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_set_unpplugged [2022-07-14 02:14:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32desc [2022-07-14 02:14:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32desc [2022-07-14 02:14:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 02:14:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 02:14:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 02:14:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route_length [2022-07-14 02:14:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route_length [2022-07-14 02:14:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_resume_noirq [2022-07-14 02:14:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_resume_noirq [2022-07-14 02:14:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-14 02:14:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-14 02:14:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-14 02:14:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-14 02:14:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-14 02:14:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-14 02:14:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-14 02:14:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-14 02:14:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc8 [2022-07-14 02:14:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc8 [2022-07-14 02:14:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_alloc [2022-07-14 02:14:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_alloc [2022-07-14 02:14:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-14 02:14:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-14 02:14:03,492 INFO L130 BoogieDeclarations]: Found specification of procedure ring_free [2022-07-14 02:14:03,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_free [2022-07-14 02:14:03,492 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-14 02:14:03,492 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-14 02:14:03,492 INFO L130 BoogieDeclarations]: Found specification of procedure ring_write_descriptors [2022-07-14 02:14:03,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_write_descriptors [2022-07-14 02:14:03,492 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite64desc [2022-07-14 02:14:03,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite64desc [2022-07-14 02:14:03,493 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deallocate_nfc [2022-07-14 02:14:03,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deallocate_nfc [2022-07-14 02:14:03,493 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_unplugged_children [2022-07-14 02:14:03,493 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_unplugged_children [2022-07-14 02:14:03,493 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc [2022-07-14 02:14:03,493 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc [2022-07-14 02:14:03,493 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-14 02:14:03,493 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-14 02:14:03,494 INFO L130 BoogieDeclarations]: Found specification of procedure tb_plug_events_active [2022-07-14 02:14:03,494 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_plug_events_active [2022-07-14 02:14:03,494 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-07-14 02:14:03,494 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-07-14 02:14:03,494 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_stop [2022-07-14 02:14:03,494 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_stop [2022-07-14 02:14:03,494 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_resume [2022-07-14 02:14:03,494 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_resume [2022-07-14 02:14:03,495 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_print_error [2022-07-14 02:14:03,495 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_print_error [2022-07-14 02:14:03,495 INFO L130 BoogieDeclarations]: Found specification of procedure tb_wait_for_port [2022-07-14 02:14:03,495 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_wait_for_port [2022-07-14 02:14:03,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 02:14:03,496 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 02:14:03,496 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_add_nfc_credits [2022-07-14 02:14:03,496 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_add_nfc_credits [2022-07-14 02:14:03,496 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-07-14 02:14:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-07-14 02:14:03,497 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2022-07-14 02:14:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2022-07-14 02:14:03,497 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_switch [2022-07-14 02:14:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_switch [2022-07-14 02:14:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-14 02:14:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-14 02:14:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_start [2022-07-14 02:14:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_start [2022-07-14 02:14:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_restart [2022-07-14 02:14:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_restart [2022-07-14 02:14:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure ring_start [2022-07-14 02:14:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_start [2022-07-14 02:14:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 02:14:03,499 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 02:14:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure check_config_address [2022-07-14 02:14:03,499 INFO L138 BoogieDeclarations]: Found implementation of procedure check_config_address [2022-07-14 02:14:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure ring_stop [2022-07-14 02:14:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_stop [2022-07-14 02:14:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_write [2022-07-14 02:14:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_write [2022-07-14 02:14:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-14 02:14:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-14 02:14:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 02:14:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 02:14:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 02:14:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 02:14:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 02:14:03,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 02:14:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read [2022-07-14 02:14:03,502 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read [2022-07-14 02:14:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 02:14:03,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 02:14:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_free [2022-07-14 02:14:03,503 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_free [2022-07-14 02:14:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure __crc32c_le [2022-07-14 02:14:03,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __crc32c_le [2022-07-14 02:14:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 02:14:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kcalloc [2022-07-14 02:14:03,503 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kcalloc [2022-07-14 02:14:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-07-14 02:14:03,504 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_index [2022-07-14 02:14:03,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_index [2022-07-14 02:14:03,504 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-14 02:14:03,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-14 02:14:03,504 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_free [2022-07-14 02:14:03,504 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_free [2022-07-14 02:14:03,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 02:14:03,504 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_is_invalid [2022-07-14 02:14:03,505 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_is_invalid [2022-07-14 02:14:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure dev_driver_string [2022-07-14 02:14:03,505 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_driver_string [2022-07-14 02:14:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 02:14:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 02:14:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 02:14:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 02:14:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_transfer [2022-07-14 02:14:03,506 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_transfer [2022-07-14 02:14:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_basic [2022-07-14 02:14:03,509 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_basic [2022-07-14 02:14:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_init_path [2022-07-14 02:14:03,509 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_init_path [2022-07-14 02:14:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deactivate_hops [2022-07-14 02:14:03,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deactivate_hops [2022-07-14 02:14:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_free [2022-07-14 02:14:03,510 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_free [2022-07-14 02:14:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure tb_is_upstream_port [2022-07-14 02:14:03,510 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_is_upstream_port [2022-07-14 02:14:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure ring_alloc [2022-07-14 02:14:03,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_alloc [2022-07-14 02:14:03,512 INFO L130 BoogieDeclarations]: Found specification of procedure tb_upstream_port [2022-07-14 02:14:03,512 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_upstream_port [2022-07-14 02:14:03,512 INFO L130 BoogieDeclarations]: Found specification of procedure __ring_enqueue [2022-07-14 02:14:03,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __ring_enqueue [2022-07-14 02:14:03,513 INFO L130 BoogieDeclarations]: Found specification of procedure make_header [2022-07-14 02:14:03,513 INFO L138 BoogieDeclarations]: Found implementation of procedure make_header [2022-07-14 02:14:03,513 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-14 02:14:03,513 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-14 02:14:03,513 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_invalid_tunnels [2022-07-14 02:14:03,513 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_invalid_tunnels [2022-07-14 02:14:03,513 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-07-14 02:14:03,513 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-07-14 02:14:03,514 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_read [2022-07-14 02:14:03,514 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_read [2022-07-14 02:14:03,514 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-14 02:14:03,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-14 02:14:03,514 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_deactivate [2022-07-14 02:14:03,514 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_deactivate [2022-07-14 02:14:03,514 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 02:14:03,514 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 02:14:03,514 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_out [2022-07-14 02:14:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_out [2022-07-14 02:14:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_write [2022-07-14 02:14:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_write [2022-07-14 02:14:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-14 02:14:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-14 02:14:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 02:14:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx [2022-07-14 02:14:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx [2022-07-14 02:14:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 02:14:03,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 02:14:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route [2022-07-14 02:14:03,516 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route [2022-07-14 02:14:04,560 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 02:14:04,564 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 02:14:05,356 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 02:16:04,265 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 02:16:04,294 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 02:16:04,295 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 02:16:04,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:16:04 BoogieIcfgContainer [2022-07-14 02:16:04,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 02:16:04,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 02:16:04,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 02:16:04,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 02:16:04,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:13:59" (1/3) ... [2022-07-14 02:16:04,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54aff40b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:16:04, skipping insertion in model container [2022-07-14 02:16:04,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:02" (2/3) ... [2022-07-14 02:16:04,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54aff40b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:16:04, skipping insertion in model container [2022-07-14 02:16:04,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:16:04" (3/3) ... [2022-07-14 02:16:04,307 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-14 02:16:04,319 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 02:16:04,320 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 02:16:04,425 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 02:16:04,429 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@4612e643, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6b942712 [2022-07-14 02:16:04,429 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 02:16:04,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 2456 states, 1665 states have (on average 1.330930930930931) internal successors, (2216), 1703 states have internal predecessors, (2216), 664 states have call successors, (664), 126 states have call predecessors, (664), 125 states have return successors, (658), 654 states have call predecessors, (658), 658 states have call successors, (658) [2022-07-14 02:16:04,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-14 02:16:04,485 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:16:04,486 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-07-14 02:16:04,486 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:16:04,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:16:04,492 INFO L85 PathProgramCache]: Analyzing trace with hash 2034179201, now seen corresponding path program 1 times [2022-07-14 02:16:04,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:16:04,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490004583] [2022-07-14 02:16:04,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:16:04,510 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:16:04,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:16:04,515 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:16:04,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 02:16:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:16:06,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 1789 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:16:06,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:16:06,414 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 02:16:06,415 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:16:06,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:16:06,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490004583] [2022-07-14 02:16:06,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490004583] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:16:06,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:16:06,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:16:06,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415531313] [2022-07-14 02:16:06,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:16:06,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:16:06,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:16:06,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:16:06,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:06,469 INFO L87 Difference]: Start difference. First operand has 2456 states, 1665 states have (on average 1.330930930930931) internal successors, (2216), 1703 states have internal predecessors, (2216), 664 states have call successors, (664), 126 states have call predecessors, (664), 125 states have return successors, (658), 654 states have call predecessors, (658), 658 states have call successors, (658) Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 02:16:07,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:16:07,144 INFO L93 Difference]: Finished difference Result 6667 states and 9956 transitions. [2022-07-14 02:16:07,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:16:07,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2022-07-14 02:16:07,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:16:07,197 INFO L225 Difference]: With dead ends: 6667 [2022-07-14 02:16:07,197 INFO L226 Difference]: Without dead ends: 4187 [2022-07-14 02:16:07,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:07,233 INFO L413 NwaCegarLoop]: 4663 mSDtfsCounter, 2503 mSDsluCounter, 3510 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2503 SdHoareTripleChecker+Valid, 8173 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 02:16:07,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2503 Valid, 8173 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 02:16:07,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4187 states. [2022-07-14 02:16:07,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4187 to 4183. [2022-07-14 02:16:07,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4183 states, 2837 states have (on average 1.3249911878745153) internal successors, (3759), 2889 states have internal predecessors, (3759), 1117 states have call successors, (1117), 229 states have call predecessors, (1117), 228 states have return successors, (1116), 1108 states have call predecessors, (1116), 1116 states have call successors, (1116) [2022-07-14 02:16:07,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4183 states to 4183 states and 5992 transitions. [2022-07-14 02:16:07,559 INFO L78 Accepts]: Start accepts. Automaton has 4183 states and 5992 transitions. Word has length 107 [2022-07-14 02:16:07,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:16:07,560 INFO L495 AbstractCegarLoop]: Abstraction has 4183 states and 5992 transitions. [2022-07-14 02:16:07,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 02:16:07,561 INFO L276 IsEmpty]: Start isEmpty. Operand 4183 states and 5992 transitions. [2022-07-14 02:16:07,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-14 02:16:07,570 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:16:07,570 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-14 02:16:07,610 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-14 02:16:07,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:16:07,784 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:16:07,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:16:07,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1327248420, now seen corresponding path program 1 times [2022-07-14 02:16:07,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:16:07,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763226407] [2022-07-14 02:16:07,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:16:07,788 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:16:07,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:16:07,791 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:16:07,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 02:16:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:16:10,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 2755 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:16:10,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:16:10,730 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-14 02:16:10,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:16:10,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:16:10,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763226407] [2022-07-14 02:16:10,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763226407] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:16:10,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:16:10,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:16:10,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271418084] [2022-07-14 02:16:10,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:16:10,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:16:10,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:16:10,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:16:10,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:10,734 INFO L87 Difference]: Start difference. First operand 4183 states and 5992 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-14 02:16:12,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:16:12,274 INFO L93 Difference]: Finished difference Result 10992 states and 15696 transitions. [2022-07-14 02:16:12,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:16:12,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2022-07-14 02:16:12,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:16:12,326 INFO L225 Difference]: With dead ends: 10992 [2022-07-14 02:16:12,326 INFO L226 Difference]: Without dead ends: 6817 [2022-07-14 02:16:12,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:12,355 INFO L413 NwaCegarLoop]: 5300 mSDtfsCounter, 3053 mSDsluCounter, 3440 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3053 SdHoareTripleChecker+Valid, 8740 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-14 02:16:12,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3053 Valid, 8740 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-14 02:16:12,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6817 states. [2022-07-14 02:16:12,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6817 to 6814. [2022-07-14 02:16:12,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6814 states, 4608 states have (on average 1.3181423611111112) internal successors, (6074), 4695 states have internal predecessors, (6074), 1818 states have call successors, (1818), 388 states have call predecessors, (1818), 387 states have return successors, (1817), 1805 states have call predecessors, (1817), 1817 states have call successors, (1817) [2022-07-14 02:16:12,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6814 states to 6814 states and 9709 transitions. [2022-07-14 02:16:12,786 INFO L78 Accepts]: Start accepts. Automaton has 6814 states and 9709 transitions. Word has length 100 [2022-07-14 02:16:12,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:16:12,787 INFO L495 AbstractCegarLoop]: Abstraction has 6814 states and 9709 transitions. [2022-07-14 02:16:12,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-14 02:16:12,787 INFO L276 IsEmpty]: Start isEmpty. Operand 6814 states and 9709 transitions. [2022-07-14 02:16:12,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-14 02:16:12,799 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:16:12,799 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-14 02:16:12,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-14 02:16:13,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:16:13,020 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:16:13,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:16:13,021 INFO L85 PathProgramCache]: Analyzing trace with hash -355677677, now seen corresponding path program 1 times [2022-07-14 02:16:13,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:16:13,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435719545] [2022-07-14 02:16:13,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:16:13,026 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:16:13,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:16:13,028 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:16:13,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 02:16:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:16:15,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 2831 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 02:16:15,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:16:16,638 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-14 02:16:16,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:16:16,643 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:16:16,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1435719545] [2022-07-14 02:16:16,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1435719545] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:16:16,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:16:16,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 02:16:16,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140560003] [2022-07-14 02:16:16,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:16:16,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 02:16:16,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:16:16,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 02:16:16,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 02:16:16,648 INFO L87 Difference]: Start difference. First operand 6814 states and 9709 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-14 02:16:17,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:16:17,290 INFO L93 Difference]: Finished difference Result 13609 states and 19397 transitions. [2022-07-14 02:16:17,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 02:16:17,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 130 [2022-07-14 02:16:17,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:16:17,345 INFO L225 Difference]: With dead ends: 13609 [2022-07-14 02:16:17,345 INFO L226 Difference]: Without dead ends: 6798 [2022-07-14 02:16:17,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 02:16:17,387 INFO L413 NwaCegarLoop]: 3510 mSDtfsCounter, 3 mSDsluCounter, 7015 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 10525 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 02:16:17,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 10525 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 02:16:17,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6798 states. [2022-07-14 02:16:17,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6798 to 6792. [2022-07-14 02:16:17,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6792 states, 4590 states have (on average 1.3176470588235294) internal successors, (6048), 4677 states have internal predecessors, (6048), 1815 states have call successors, (1815), 387 states have call predecessors, (1815), 386 states have return successors, (1814), 1802 states have call predecessors, (1814), 1814 states have call successors, (1814) [2022-07-14 02:16:17,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6792 states to 6792 states and 9677 transitions. [2022-07-14 02:16:17,806 INFO L78 Accepts]: Start accepts. Automaton has 6792 states and 9677 transitions. Word has length 130 [2022-07-14 02:16:17,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:16:17,807 INFO L495 AbstractCegarLoop]: Abstraction has 6792 states and 9677 transitions. [2022-07-14 02:16:17,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-14 02:16:17,811 INFO L276 IsEmpty]: Start isEmpty. Operand 6792 states and 9677 transitions. [2022-07-14 02:16:17,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-14 02:16:17,822 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:16:17,823 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-14 02:16:17,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 02:16:18,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:16:18,039 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:16:18,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:16:18,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2011288551, now seen corresponding path program 1 times [2022-07-14 02:16:18,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:16:18,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811773180] [2022-07-14 02:16:18,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:16:18,042 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:16:18,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:16:18,045 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:16:18,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 02:16:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:16:19,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 1893 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:16:19,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:16:19,594 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 02:16:19,595 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:16:19,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:16:19,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811773180] [2022-07-14 02:16:19,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811773180] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:16:19,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:16:19,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:16:19,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847601448] [2022-07-14 02:16:19,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:16:19,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:16:19,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:16:19,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:16:19,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:19,598 INFO L87 Difference]: Start difference. First operand 6792 states and 9677 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 02:16:19,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:16:19,849 INFO L93 Difference]: Finished difference Result 13571 states and 19339 transitions. [2022-07-14 02:16:19,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:16:19,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 140 [2022-07-14 02:16:19,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:16:19,901 INFO L225 Difference]: With dead ends: 13571 [2022-07-14 02:16:19,902 INFO L226 Difference]: Without dead ends: 6792 [2022-07-14 02:16:19,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:19,939 INFO L413 NwaCegarLoop]: 3511 mSDtfsCounter, 0 mSDsluCounter, 3507 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7018 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 02:16:19,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7018 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 02:16:19,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6792 states. [2022-07-14 02:16:20,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6792 to 6792. [2022-07-14 02:16:20,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6792 states, 4590 states have (on average 1.3172113289760348) internal successors, (6046), 4677 states have internal predecessors, (6046), 1815 states have call successors, (1815), 387 states have call predecessors, (1815), 386 states have return successors, (1814), 1802 states have call predecessors, (1814), 1814 states have call successors, (1814) [2022-07-14 02:16:20,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6792 states to 6792 states and 9675 transitions. [2022-07-14 02:16:20,304 INFO L78 Accepts]: Start accepts. Automaton has 6792 states and 9675 transitions. Word has length 140 [2022-07-14 02:16:20,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:16:20,304 INFO L495 AbstractCegarLoop]: Abstraction has 6792 states and 9675 transitions. [2022-07-14 02:16:20,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 02:16:20,305 INFO L276 IsEmpty]: Start isEmpty. Operand 6792 states and 9675 transitions. [2022-07-14 02:16:20,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-14 02:16:20,317 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:16:20,317 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-14 02:16:20,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-14 02:16:20,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:16:20,531 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:16:20,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:16:20,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1245094171, now seen corresponding path program 1 times [2022-07-14 02:16:20,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:16:20,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1149926240] [2022-07-14 02:16:20,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:16:20,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:16:20,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:16:20,536 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:16:20,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 02:16:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:16:21,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 1893 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:16:21,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:16:22,101 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-14 02:16:22,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:16:22,102 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:16:22,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1149926240] [2022-07-14 02:16:22,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1149926240] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:16:22,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:16:22,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:16:22,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890629729] [2022-07-14 02:16:22,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:16:22,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:16:22,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:16:22,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:16:22,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:22,104 INFO L87 Difference]: Start difference. First operand 6792 states and 9675 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 02:16:22,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:16:22,461 INFO L93 Difference]: Finished difference Result 13570 states and 19334 transitions. [2022-07-14 02:16:22,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:16:22,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 140 [2022-07-14 02:16:22,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:16:22,520 INFO L225 Difference]: With dead ends: 13570 [2022-07-14 02:16:22,520 INFO L226 Difference]: Without dead ends: 6791 [2022-07-14 02:16:22,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:22,547 INFO L413 NwaCegarLoop]: 3510 mSDtfsCounter, 0 mSDsluCounter, 3505 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7015 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 02:16:22,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7015 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 02:16:22,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6791 states. [2022-07-14 02:16:22,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6791 to 6786. [2022-07-14 02:16:22,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6786 states, 4584 states have (on average 1.3171902268760907) internal successors, (6038), 4672 states have internal predecessors, (6038), 1815 states have call successors, (1815), 387 states have call predecessors, (1815), 386 states have return successors, (1814), 1801 states have call predecessors, (1814), 1814 states have call successors, (1814) [2022-07-14 02:16:22,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6786 states to 6786 states and 9667 transitions. [2022-07-14 02:16:22,871 INFO L78 Accepts]: Start accepts. Automaton has 6786 states and 9667 transitions. Word has length 140 [2022-07-14 02:16:22,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:16:22,871 INFO L495 AbstractCegarLoop]: Abstraction has 6786 states and 9667 transitions. [2022-07-14 02:16:22,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 02:16:22,872 INFO L276 IsEmpty]: Start isEmpty. Operand 6786 states and 9667 transitions. [2022-07-14 02:16:22,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-14 02:16:22,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:16:22,885 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-14 02:16:22,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 02:16:23,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:16:23,104 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:16:23,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:16:23,104 INFO L85 PathProgramCache]: Analyzing trace with hash -82410969, now seen corresponding path program 1 times [2022-07-14 02:16:23,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:16:23,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709751712] [2022-07-14 02:16:23,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:16:23,106 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:16:23,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:16:23,111 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:16:23,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 02:16:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:16:24,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 1943 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:16:24,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:16:26,430 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-14 02:16:26,431 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:16:26,431 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:16:26,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709751712] [2022-07-14 02:16:26,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709751712] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:16:26,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:16:26,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:16:26,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958039766] [2022-07-14 02:16:26,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:16:26,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:16:26,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:16:26,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:16:26,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:26,432 INFO L87 Difference]: Start difference. First operand 6786 states and 9667 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 02:16:27,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:16:27,006 INFO L93 Difference]: Finished difference Result 16699 states and 23738 transitions. [2022-07-14 02:16:27,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:16:27,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 157 [2022-07-14 02:16:27,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:16:27,116 INFO L225 Difference]: With dead ends: 16699 [2022-07-14 02:16:27,116 INFO L226 Difference]: Without dead ends: 9928 [2022-07-14 02:16:27,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:27,137 INFO L413 NwaCegarLoop]: 5111 mSDtfsCounter, 3455 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3455 SdHoareTripleChecker+Valid, 7811 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 02:16:27,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3455 Valid, 7811 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 02:16:27,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9928 states. [2022-07-14 02:16:27,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9928 to 9917. [2022-07-14 02:16:27,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9917 states, 6688 states have (on average 1.3132476076555024) internal successors, (8783), 6818 states have internal predecessors, (8783), 2644 states have call successors, (2644), 585 states have call predecessors, (2644), 584 states have return successors, (2643), 2626 states have call predecessors, (2643), 2643 states have call successors, (2643) [2022-07-14 02:16:27,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9917 states to 9917 states and 14070 transitions. [2022-07-14 02:16:27,512 INFO L78 Accepts]: Start accepts. Automaton has 9917 states and 14070 transitions. Word has length 157 [2022-07-14 02:16:27,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:16:27,513 INFO L495 AbstractCegarLoop]: Abstraction has 9917 states and 14070 transitions. [2022-07-14 02:16:27,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 02:16:27,513 INFO L276 IsEmpty]: Start isEmpty. Operand 9917 states and 14070 transitions. [2022-07-14 02:16:27,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-14 02:16:27,527 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:16:27,528 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-14 02:16:27,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 02:16:27,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:16:27,747 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:16:27,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:16:27,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1553948647, now seen corresponding path program 1 times [2022-07-14 02:16:27,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:16:27,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1931829620] [2022-07-14 02:16:27,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:16:27,750 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:16:27,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:16:27,752 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:16:27,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 02:16:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:16:30,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 2907 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:16:30,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:16:31,374 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-14 02:16:31,375 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:16:31,375 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:16:31,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1931829620] [2022-07-14 02:16:31,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1931829620] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:16:31,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:16:31,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:16:31,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226006559] [2022-07-14 02:16:31,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:16:31,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:16:31,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:16:31,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:16:31,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:31,376 INFO L87 Difference]: Start difference. First operand 9917 states and 14070 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-14 02:16:33,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:16:33,149 INFO L93 Difference]: Finished difference Result 23813 states and 33796 transitions. [2022-07-14 02:16:33,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:16:33,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 149 [2022-07-14 02:16:33,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:16:33,326 INFO L225 Difference]: With dead ends: 23813 [2022-07-14 02:16:33,326 INFO L226 Difference]: Without dead ends: 13911 [2022-07-14 02:16:33,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:33,358 INFO L413 NwaCegarLoop]: 5712 mSDtfsCounter, 3091 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3091 SdHoareTripleChecker+Valid, 9149 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-14 02:16:33,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3091 Valid, 9149 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-14 02:16:33,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13911 states. [2022-07-14 02:16:33,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13911 to 13903. [2022-07-14 02:16:33,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13903 states, 9401 states have (on average 1.3115625997234337) internal successors, (12330), 9583 states have internal predecessors, (12330), 3672 states have call successors, (3672), 830 states have call predecessors, (3672), 829 states have return successors, (3671), 3649 states have call predecessors, (3671), 3671 states have call successors, (3671) [2022-07-14 02:16:33,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13903 states to 13903 states and 19673 transitions. [2022-07-14 02:16:33,935 INFO L78 Accepts]: Start accepts. Automaton has 13903 states and 19673 transitions. Word has length 149 [2022-07-14 02:16:33,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:16:33,937 INFO L495 AbstractCegarLoop]: Abstraction has 13903 states and 19673 transitions. [2022-07-14 02:16:33,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-14 02:16:33,937 INFO L276 IsEmpty]: Start isEmpty. Operand 13903 states and 19673 transitions. [2022-07-14 02:16:33,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-14 02:16:33,951 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:16:33,951 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:16:34,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 02:16:34,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:16:34,167 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:16:34,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:16:34,168 INFO L85 PathProgramCache]: Analyzing trace with hash 789903210, now seen corresponding path program 1 times [2022-07-14 02:16:34,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:16:34,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099927855] [2022-07-14 02:16:34,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:16:34,170 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:16:34,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:16:34,172 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:16:34,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 02:16:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:16:35,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 1807 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:16:35,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:16:36,035 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-14 02:16:36,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:16:36,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:16:36,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099927855] [2022-07-14 02:16:36,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099927855] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:16:36,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:16:36,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:16:36,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526788990] [2022-07-14 02:16:36,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:16:36,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:16:36,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:16:36,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:16:36,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:36,037 INFO L87 Difference]: Start difference. First operand 13903 states and 19673 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 02:16:36,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:16:36,976 INFO L93 Difference]: Finished difference Result 41629 states and 59371 transitions. [2022-07-14 02:16:36,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:16:36,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 151 [2022-07-14 02:16:36,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:16:37,119 INFO L225 Difference]: With dead ends: 41629 [2022-07-14 02:16:37,119 INFO L226 Difference]: Without dead ends: 27741 [2022-07-14 02:16:37,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:37,179 INFO L413 NwaCegarLoop]: 4167 mSDtfsCounter, 3484 mSDsluCounter, 3527 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3484 SdHoareTripleChecker+Valid, 7694 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 02:16:37,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3484 Valid, 7694 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 02:16:37,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27741 states. [2022-07-14 02:16:38,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27741 to 27738. [2022-07-14 02:16:38,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27738 states, 18756 states have (on average 1.3100341224141607) internal successors, (24571), 19120 states have internal predecessors, (24571), 7324 states have call successors, (7324), 1658 states have call predecessors, (7324), 1657 states have return successors, (7558), 7279 states have call predecessors, (7558), 7323 states have call successors, (7558) [2022-07-14 02:16:38,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27738 states to 27738 states and 39453 transitions. [2022-07-14 02:16:38,827 INFO L78 Accepts]: Start accepts. Automaton has 27738 states and 39453 transitions. Word has length 151 [2022-07-14 02:16:38,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:16:38,828 INFO L495 AbstractCegarLoop]: Abstraction has 27738 states and 39453 transitions. [2022-07-14 02:16:38,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 02:16:38,829 INFO L276 IsEmpty]: Start isEmpty. Operand 27738 states and 39453 transitions. [2022-07-14 02:16:38,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-14 02:16:38,845 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:16:38,845 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:16:38,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 02:16:39,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:16:39,068 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:16:39,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:16:39,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1975612218, now seen corresponding path program 1 times [2022-07-14 02:16:39,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:16:39,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [549308926] [2022-07-14 02:16:39,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:16:39,070 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:16:39,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:16:39,073 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:16:39,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 02:16:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:16:40,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 1809 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:16:40,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:16:40,945 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-14 02:16:40,945 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:16:40,945 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:16:40,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [549308926] [2022-07-14 02:16:40,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [549308926] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:16:40,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:16:40,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:16:40,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135869557] [2022-07-14 02:16:40,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:16:40,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:16:40,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:16:40,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:16:40,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:40,949 INFO L87 Difference]: Start difference. First operand 27738 states and 39453 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 02:16:42,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:16:42,086 INFO L93 Difference]: Finished difference Result 69276 states and 99372 transitions. [2022-07-14 02:16:42,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:16:42,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 152 [2022-07-14 02:16:42,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:16:42,439 INFO L225 Difference]: With dead ends: 69276 [2022-07-14 02:16:42,439 INFO L226 Difference]: Without dead ends: 41553 [2022-07-14 02:16:42,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:42,555 INFO L413 NwaCegarLoop]: 4158 mSDtfsCounter, 3485 mSDsluCounter, 3527 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3485 SdHoareTripleChecker+Valid, 7685 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 02:16:42,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3485 Valid, 7685 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 02:16:42,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41553 states. [2022-07-14 02:16:44,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41553 to 41550. [2022-07-14 02:16:44,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41550 states, 28104 states have (on average 1.3093509820666098) internal successors, (36798), 28650 states have internal predecessors, (36798), 10960 states have call successors, (10960), 2486 states have call predecessors, (10960), 2485 states have return successors, (11598), 10893 states have call predecessors, (11598), 10959 states have call successors, (11598) [2022-07-14 02:16:44,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41550 states to 41550 states and 59356 transitions. [2022-07-14 02:16:44,661 INFO L78 Accepts]: Start accepts. Automaton has 41550 states and 59356 transitions. Word has length 152 [2022-07-14 02:16:44,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:16:44,663 INFO L495 AbstractCegarLoop]: Abstraction has 41550 states and 59356 transitions. [2022-07-14 02:16:44,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 02:16:44,664 INFO L276 IsEmpty]: Start isEmpty. Operand 41550 states and 59356 transitions. [2022-07-14 02:16:44,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-14 02:16:44,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:16:44,679 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:16:44,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 02:16:44,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:16:44,899 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:16:44,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:16:44,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1793981039, now seen corresponding path program 1 times [2022-07-14 02:16:44,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:16:44,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462928649] [2022-07-14 02:16:44,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:16:44,902 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:16:44,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:16:44,903 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:16:44,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 02:16:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:16:46,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 1805 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:16:46,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:16:46,915 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-14 02:16:46,915 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:16:46,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:16:46,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462928649] [2022-07-14 02:16:46,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462928649] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:16:46,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:16:46,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:16:46,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685896750] [2022-07-14 02:16:46,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:16:46,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:16:46,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:16:46,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:16:46,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:46,918 INFO L87 Difference]: Start difference. First operand 41550 states and 59356 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 02:16:48,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:16:48,511 INFO L93 Difference]: Finished difference Result 96373 states and 138310 transitions. [2022-07-14 02:16:48,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:16:48,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 150 [2022-07-14 02:16:48,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:16:48,791 INFO L225 Difference]: With dead ends: 96373 [2022-07-14 02:16:48,791 INFO L226 Difference]: Without dead ends: 54838 [2022-07-14 02:16:48,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:48,969 INFO L413 NwaCegarLoop]: 4152 mSDtfsCounter, 3402 mSDsluCounter, 3520 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3402 SdHoareTripleChecker+Valid, 7672 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 02:16:48,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3402 Valid, 7672 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 02:16:49,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54838 states. [2022-07-14 02:16:50,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54838 to 54835. [2022-07-14 02:16:50,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54835 states, 37085 states have (on average 1.309855736820817) internal successors, (48576), 37834 states have internal predecessors, (48576), 14479 states have call successors, (14479), 3306 states have call predecessors, (14479), 3270 states have return successors, (15512), 14334 states have call predecessors, (15512), 14478 states have call successors, (15512) [2022-07-14 02:16:51,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54835 states to 54835 states and 78567 transitions. [2022-07-14 02:16:51,251 INFO L78 Accepts]: Start accepts. Automaton has 54835 states and 78567 transitions. Word has length 150 [2022-07-14 02:16:51,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:16:51,252 INFO L495 AbstractCegarLoop]: Abstraction has 54835 states and 78567 transitions. [2022-07-14 02:16:51,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 02:16:51,252 INFO L276 IsEmpty]: Start isEmpty. Operand 54835 states and 78567 transitions. [2022-07-14 02:16:51,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-14 02:16:51,267 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:16:51,267 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:16:51,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 02:16:51,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:16:51,480 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:16:51,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:16:51,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1527405581, now seen corresponding path program 1 times [2022-07-14 02:16:51,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:16:51,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [46144173] [2022-07-14 02:16:51,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:16:51,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:16:51,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:16:51,485 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:16:51,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 02:16:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:16:53,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:16:53,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:16:53,542 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-14 02:16:53,542 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:16:53,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:16:53,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [46144173] [2022-07-14 02:16:53,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [46144173] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:16:53,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:16:53,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:16:53,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052622527] [2022-07-14 02:16:53,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:16:53,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:16:53,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:16:53,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:16:53,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:53,545 INFO L87 Difference]: Start difference. First operand 54835 states and 78567 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 02:16:55,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:16:55,458 INFO L93 Difference]: Finished difference Result 121841 states and 176053 transitions. [2022-07-14 02:16:55,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:16:55,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 153 [2022-07-14 02:16:55,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:16:55,721 INFO L225 Difference]: With dead ends: 121841 [2022-07-14 02:16:55,721 INFO L226 Difference]: Without dead ends: 67021 [2022-07-14 02:16:55,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:16:55,873 INFO L413 NwaCegarLoop]: 4158 mSDtfsCounter, 3486 mSDsluCounter, 3527 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3486 SdHoareTripleChecker+Valid, 7685 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 02:16:55,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3486 Valid, 7685 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 02:16:55,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67021 states. [2022-07-14 02:16:57,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67021 to 67018. [2022-07-14 02:16:57,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67018 states, 45355 states have (on average 1.3095358835850512) internal successors, (59394), 46238 states have internal predecessors, (59394), 17658 states have call successors, (17658), 4040 states have call predecessors, (17658), 4004 states have return successors, (19071), 17500 states have call predecessors, (19071), 17657 states have call successors, (19071) [2022-07-14 02:16:58,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67018 states to 67018 states and 96123 transitions. [2022-07-14 02:16:58,342 INFO L78 Accepts]: Start accepts. Automaton has 67018 states and 96123 transitions. Word has length 153 [2022-07-14 02:16:58,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:16:58,343 INFO L495 AbstractCegarLoop]: Abstraction has 67018 states and 96123 transitions. [2022-07-14 02:16:58,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 02:16:58,343 INFO L276 IsEmpty]: Start isEmpty. Operand 67018 states and 96123 transitions. [2022-07-14 02:16:58,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-14 02:16:58,354 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:16:58,354 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-14 02:16:58,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 02:16:58,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:16:58,575 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:16:58,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:16:58,576 INFO L85 PathProgramCache]: Analyzing trace with hash 115279352, now seen corresponding path program 1 times [2022-07-14 02:16:58,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:16:58,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375974258] [2022-07-14 02:16:58,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:16:58,577 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:16:58,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:16:58,579 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:16:58,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 02:17:00,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:17:00,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 1997 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 02:17:00,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:17:00,388 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-07-14 02:17:00,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:17:00,388 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:17:00,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375974258] [2022-07-14 02:17:00,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375974258] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:17:00,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:17:00,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 02:17:00,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809478727] [2022-07-14 02:17:00,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:17:00,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 02:17:00,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:17:00,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 02:17:00,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 02:17:00,391 INFO L87 Difference]: Start difference. First operand 67018 states and 96123 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 02:17:03,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:17:03,702 INFO L93 Difference]: Finished difference Result 168635 states and 242712 transitions. [2022-07-14 02:17:03,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 02:17:03,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 166 [2022-07-14 02:17:03,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:17:04,364 INFO L225 Difference]: With dead ends: 168635 [2022-07-14 02:17:04,365 INFO L226 Difference]: Without dead ends: 101639 [2022-07-14 02:17:04,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 02:17:04,531 INFO L413 NwaCegarLoop]: 6993 mSDtfsCounter, 3981 mSDsluCounter, 10478 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3981 SdHoareTripleChecker+Valid, 17471 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 02:17:04,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3981 Valid, 17471 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 02:17:04,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101639 states. [2022-07-14 02:17:07,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101639 to 67048. [2022-07-14 02:17:07,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67048 states, 45385 states have (on average 1.309331276853586) internal successors, (59424), 46268 states have internal predecessors, (59424), 17658 states have call successors, (17658), 4040 states have call predecessors, (17658), 4004 states have return successors, (19071), 17500 states have call predecessors, (19071), 17657 states have call successors, (19071) [2022-07-14 02:17:07,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67048 states to 67048 states and 96153 transitions. [2022-07-14 02:17:07,787 INFO L78 Accepts]: Start accepts. Automaton has 67048 states and 96153 transitions. Word has length 166 [2022-07-14 02:17:07,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:17:07,788 INFO L495 AbstractCegarLoop]: Abstraction has 67048 states and 96153 transitions. [2022-07-14 02:17:07,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 02:17:07,788 INFO L276 IsEmpty]: Start isEmpty. Operand 67048 states and 96153 transitions. [2022-07-14 02:17:07,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-14 02:17:07,799 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:17:07,800 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:17:07,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-14 02:17:08,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:17:08,020 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:17:08,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:17:08,020 INFO L85 PathProgramCache]: Analyzing trace with hash -713391816, now seen corresponding path program 1 times [2022-07-14 02:17:08,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:17:08,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276455135] [2022-07-14 02:17:08,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:17:08,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:17:08,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:17:08,023 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:17:08,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 02:17:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:17:10,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 2949 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:17:10,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:17:10,992 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-07-14 02:17:10,992 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:17:10,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:17:10,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276455135] [2022-07-14 02:17:10,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276455135] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:17:10,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:17:10,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:17:10,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873181349] [2022-07-14 02:17:10,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:17:10,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:17:10,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:17:10,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:17:10,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:17:10,994 INFO L87 Difference]: Start difference. First operand 67048 states and 96153 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 02:17:14,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:17:14,740 INFO L93 Difference]: Finished difference Result 153174 states and 219822 transitions. [2022-07-14 02:17:14,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:17:14,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 171 [2022-07-14 02:17:14,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:17:15,096 INFO L225 Difference]: With dead ends: 153174 [2022-07-14 02:17:15,096 INFO L226 Difference]: Without dead ends: 86148 [2022-07-14 02:17:15,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:17:15,280 INFO L413 NwaCegarLoop]: 6593 mSDtfsCounter, 3107 mSDsluCounter, 3438 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3107 SdHoareTripleChecker+Valid, 10031 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-14 02:17:15,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3107 Valid, 10031 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-14 02:17:15,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86148 states. [2022-07-14 02:17:18,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86148 to 86120. [2022-07-14 02:17:18,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86120 states, 58389 states have (on average 1.3083114970285499) internal successors, (76391), 59519 states have internal predecessors, (76391), 22556 states have call successors, (22556), 5220 states have call predecessors, (22556), 5174 states have return successors, (24402), 22361 states have call predecessors, (24402), 22555 states have call successors, (24402) [2022-07-14 02:17:18,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86120 states to 86120 states and 123349 transitions. [2022-07-14 02:17:18,553 INFO L78 Accepts]: Start accepts. Automaton has 86120 states and 123349 transitions. Word has length 171 [2022-07-14 02:17:18,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:17:18,554 INFO L495 AbstractCegarLoop]: Abstraction has 86120 states and 123349 transitions. [2022-07-14 02:17:18,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 02:17:18,554 INFO L276 IsEmpty]: Start isEmpty. Operand 86120 states and 123349 transitions. [2022-07-14 02:17:18,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-14 02:17:18,559 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:17:18,559 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:17:18,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-14 02:17:18,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:17:18,760 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:17:18,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:17:18,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1498136421, now seen corresponding path program 1 times [2022-07-14 02:17:18,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:17:18,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309231614] [2022-07-14 02:17:18,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:17:18,762 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:17:18,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:17:18,763 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:17:18,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-14 02:17:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:17:20,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 1693 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 02:17:20,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:17:20,664 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-14 02:17:20,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:17:20,665 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:17:20,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1309231614] [2022-07-14 02:17:20,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1309231614] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:17:20,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:17:20,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 02:17:20,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20071480] [2022-07-14 02:17:20,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:17:20,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 02:17:20,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:17:20,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 02:17:20,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 02:17:20,666 INFO L87 Difference]: Start difference. First operand 86120 states and 123349 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 02:17:24,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:17:24,003 INFO L93 Difference]: Finished difference Result 176830 states and 254250 transitions. [2022-07-14 02:17:24,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 02:17:24,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 171 [2022-07-14 02:17:24,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:17:24,375 INFO L225 Difference]: With dead ends: 176830 [2022-07-14 02:17:24,375 INFO L226 Difference]: Without dead ends: 90732 [2022-07-14 02:17:24,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 02:17:24,658 INFO L413 NwaCegarLoop]: 3795 mSDtfsCounter, 725 mSDsluCounter, 7283 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 11078 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 02:17:24,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 11078 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 02:17:24,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90732 states.