./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 12:50:45,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:50:45,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:50:45,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:50:45,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:50:45,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:50:45,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:50:45,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:50:45,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:50:45,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:50:45,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:50:45,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:50:45,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:50:45,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:50:45,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:50:45,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:50:45,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:50:45,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:50:45,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:50:45,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:50:45,250 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:50:45,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:50:45,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:50:45,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:50:45,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:50:45,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:50:45,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:50:45,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:50:45,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:50:45,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:50:45,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:50:45,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:50:45,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:50:45,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:50:45,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:50:45,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:50:45,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:50:45,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:50:45,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:50:45,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:50:45,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:50:45,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:50:45,276 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 12:50:45,301 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:50:45,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:50:45,302 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:50:45,302 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:50:45,303 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:50:45,303 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:50:45,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:50:45,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:50:45,304 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:50:45,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:50:45,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 12:50:45,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:50:45,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:50:45,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:50:45,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:50:45,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:50:45,306 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:50:45,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:50:45,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:50:45,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:50:45,306 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:50:45,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:50:45,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:50:45,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:50:45,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:50:45,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 12:50:45,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 12:50:45,307 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:50:45,307 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:50:45,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:50:45,308 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf [2022-07-12 12:50:45,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:50:45,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:50:45,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:50:45,484 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:50:45,484 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:50:45,485 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-12 12:50:45,529 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4df7f6a37/08bd709a313943c6b74c696ed5fec148/FLAGbd80b9139 [2022-07-12 12:50:46,197 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:50:46,197 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-12 12:50:46,228 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4df7f6a37/08bd709a313943c6b74c696ed5fec148/FLAGbd80b9139 [2022-07-12 12:50:46,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4df7f6a37/08bd709a313943c6b74c696ed5fec148 [2022-07-12 12:50:46,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:50:46,517 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:50:46,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:50:46,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:50:46,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:50:46,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:50:46" (1/1) ... [2022-07-12 12:50:46,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6869c4ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:50:46, skipping insertion in model container [2022-07-12 12:50:46,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:50:46" (1/1) ... [2022-07-12 12:50:46,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:50:46,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:50:46,989 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2022-07-12 12:50:46,990 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2022-07-12 12:50:47,142 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2022-07-12 12:50:47,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:50:47,782 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:50:47,867 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2022-07-12 12:50:47,868 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2022-07-12 12:50:47,873 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2022-07-12 12:50:47,962 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: cfgpmcsr = cfgpmcsr & 4294967039U [8277] 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) [2022-07-12 12:50:47,969 INFO L158 Benchmark]: Toolchain (without parser) took 1451.29ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 96.2MB in the beginning and 100.9MB in the end (delta: -4.6MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. [2022-07-12 12:50:47,970 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory was 41.5MB in the beginning and 41.5MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 12:50:47,971 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1448.83ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 96.0MB in the beginning and 100.9MB in the end (delta: -4.9MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. [2022-07-12 12:50:47,972 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory was 41.5MB in the beginning and 41.5MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1448.83ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 96.0MB in the beginning and 100.9MB in the end (delta: -4.9MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: cfgpmcsr = cfgpmcsr & 4294967039U [8277] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: cfgpmcsr = cfgpmcsr & 4294967039U [8277]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 12:50:49,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:50:49,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:50:49,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:50:49,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:50:49,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:50:49,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:50:49,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:50:49,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:50:49,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:50:49,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:50:49,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:50:49,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:50:49,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:50:49,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:50:49,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:50:49,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:50:49,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:50:49,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:50:49,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:50:49,464 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:50:49,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:50:49,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:50:49,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:50:49,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:50:49,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:50:49,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:50:49,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:50:49,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:50:49,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:50:49,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:50:49,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:50:49,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:50:49,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:50:49,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:50:49,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:50:49,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:50:49,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:50:49,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:50:49,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:50:49,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:50:49,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:50:49,478 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 12:50:49,512 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:50:49,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:50:49,513 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:50:49,513 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:50:49,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:50:49,514 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:50:49,515 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:50:49,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:50:49,515 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:50:49,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:50:49,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:50:49,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:50:49,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:50:49,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:50:49,516 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 12:50:49,517 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 12:50:49,517 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 12:50:49,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:50:49,517 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:50:49,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:50:49,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:50:49,517 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:50:49,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:50:49,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:50:49,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:50:49,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:50:49,518 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:50:49,518 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 12:50:49,518 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 12:50:49,519 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:50:49,519 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:50:49,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:50:49,519 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 12:50:49,519 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf [2022-07-12 12:50:49,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:50:49,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:50:49,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:50:49,815 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:50:49,816 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:50:49,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-12 12:50:49,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f16b82af/d72d902247ec4efc9a4a171d031401fd/FLAG4cfb99da7 [2022-07-12 12:50:50,439 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:50:50,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-12 12:50:50,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f16b82af/d72d902247ec4efc9a4a171d031401fd/FLAG4cfb99da7 [2022-07-12 12:50:50,895 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f16b82af/d72d902247ec4efc9a4a171d031401fd [2022-07-12 12:50:50,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:50:50,899 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:50:50,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:50:50,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:50:50,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:50:50,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:50:50" (1/1) ... [2022-07-12 12:50:50,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@487b473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:50:50, skipping insertion in model container [2022-07-12 12:50:50,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:50:50" (1/1) ... [2022-07-12 12:50:50,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:50:51,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:50:51,457 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2022-07-12 12:50:51,458 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2022-07-12 12:50:51,790 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2022-07-12 12:50:52,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:50:52,586 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 12:50:52,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:50:52,696 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2022-07-12 12:50:52,697 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2022-07-12 12:50:52,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2022-07-12 12:50:52,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:50:52,849 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:50:52,932 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2022-07-12 12:50:52,932 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2022-07-12 12:50:52,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2022-07-12 12:50:53,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:50:53,255 INFO L208 MainTranslator]: Completed translation [2022-07-12 12:50:53,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:50:53 WrapperNode [2022-07-12 12:50:53,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 12:50:53,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 12:50:53,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 12:50:53,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 12:50:53,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:50:53" (1/1) ... [2022-07-12 12:50:53,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:50:53" (1/1) ... [2022-07-12 12:50:53,454 INFO L137 Inliner]: procedures = 290, calls = 1587, calls flagged for inlining = 160, calls inlined = 157, statements flattened = 4216 [2022-07-12 12:50:53,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 12:50:53,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 12:50:53,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 12:50:53,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 12:50:53,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:50:53" (1/1) ... [2022-07-12 12:50:53,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:50:53" (1/1) ... [2022-07-12 12:50:53,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:50:53" (1/1) ... [2022-07-12 12:50:53,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:50:53" (1/1) ... [2022-07-12 12:50:53,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:50:53" (1/1) ... [2022-07-12 12:50:53,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:50:53" (1/1) ... [2022-07-12 12:50:53,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:50:53" (1/1) ... [2022-07-12 12:50:53,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 12:50:53,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 12:50:53,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 12:50:53,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 12:50:53,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:50:53" (1/1) ... [2022-07-12 12:50:53,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:50:53,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:50:53,690 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) [2022-07-12 12:50:53,707 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 [2022-07-12 12:50:53,728 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2022-07-12 12:50:53,728 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2022-07-12 12:50:53,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 12:50:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 12:50:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-07-12 12:50:53,729 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-07-12 12:50:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 12:50:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 12:50:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 12:50:53,729 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 12:50:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 12:50:53,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 12:50:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-12 12:50:53,730 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-12 12:50:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 12:50:53,730 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 12:50:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-12 12:50:53,730 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-12 12:50:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-12 12:50:53,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-12 12:50:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 12:50:53,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 12:50:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2022-07-12 12:50:53,731 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2022-07-12 12:50:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 12:50:53,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 12:50:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-12 12:50:53,731 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-12 12:50:53,732 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-12 12:50:53,732 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-12 12:50:53,732 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 12:50:53,732 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 12:50:53,732 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-12 12:50:53,732 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-12 12:50:53,732 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2022-07-12 12:50:53,732 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2022-07-12 12:50:53,732 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-12 12:50:53,733 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-12 12:50:53,733 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 12:50:53,733 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 12:50:53,733 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-12 12:50:53,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-12 12:50:53,734 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 12:50:53,734 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 12:50:53,734 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-12 12:50:53,735 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-12 12:50:53,735 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-12 12:50:53,735 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-12 12:50:53,735 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2022-07-12 12:50:53,735 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2022-07-12 12:50:53,735 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 12:50:53,736 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 12:50:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-07-12 12:50:53,736 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-07-12 12:50:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-12 12:50:53,736 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-12 12:50:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 12:50:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 12:50:53,736 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 12:50:53,737 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-12 12:50:53,737 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-12 12:50:53,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 12:50:53,737 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 12:50:53,737 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 12:50:53,738 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-12 12:50:53,738 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-12 12:50:53,738 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 12:50:53,738 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 12:50:53,738 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-12 12:50:53,738 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-12 12:50:53,738 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 12:50:53,738 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 12:50:53,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-12 12:50:53,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-12 12:50:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-12 12:50:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2022-07-12 12:50:53,739 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2022-07-12 12:50:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2022-07-12 12:50:53,739 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2022-07-12 12:50:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 12:50:53,740 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 12:50:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2022-07-12 12:50:53,740 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2022-07-12 12:50:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2022-07-12 12:50:53,740 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2022-07-12 12:50:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 12:50:53,741 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 12:50:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 12:50:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 12:50:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 12:50:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 12:50:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 12:50:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 12:50:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 12:50:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 12:50:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 12:50:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-12 12:50:53,742 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-12 12:50:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 12:50:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-12 12:50:53,743 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-12 12:50:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 12:50:53,743 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 12:50:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2022-07-12 12:50:53,744 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2022-07-12 12:50:53,744 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 12:50:53,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 12:50:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 12:50:53,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 12:50:53,747 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2022-07-12 12:50:53,747 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2022-07-12 12:50:53,747 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-12 12:50:53,747 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-12 12:50:53,747 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 12:50:53,748 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 12:50:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-12 12:50:53,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-12 12:50:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2022-07-12 12:50:53,752 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2022-07-12 12:50:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2022-07-12 12:50:53,752 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2022-07-12 12:50:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-07-12 12:50:53,752 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-07-12 12:50:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 12:50:53,753 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 12:50:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 12:50:53,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 12:50:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-12 12:50:53,753 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-12 12:50:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 12:50:53,753 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 12:50:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-12 12:50:53,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-12 12:50:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 12:50:53,754 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 12:50:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-07-12 12:50:53,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-07-12 12:50:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 12:50:53,754 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 12:50:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-12 12:50:53,754 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-12 12:50:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2022-07-12 12:50:53,754 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2022-07-12 12:50:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 12:50:53,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 12:50:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2022-07-12 12:50:53,755 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2022-07-12 12:50:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_config [2022-07-12 12:50:53,755 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_config [2022-07-12 12:50:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 12:50:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-07-12 12:50:53,755 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-07-12 12:50:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 12:50:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2022-07-12 12:50:53,756 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2022-07-12 12:50:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 12:50:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-12 12:50:53,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-12 12:50:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-12 12:50:53,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-12 12:50:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-07-12 12:50:53,756 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-07-12 12:50:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-12 12:50:53,756 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-12 12:50:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2022-07-12 12:50:53,757 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2022-07-12 12:50:53,757 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-12 12:50:53,757 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-12 12:50:53,757 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ioctl [2022-07-12 12:50:53,757 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ioctl [2022-07-12 12:50:53,757 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-12 12:50:53,757 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-12 12:50:53,757 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 12:50:53,757 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 12:50:53,757 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-07-12 12:50:53,758 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-07-12 12:50:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 12:50:53,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 12:50:54,418 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 12:50:54,424 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 12:50:54,633 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 12:51:21,971 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 12:51:21,982 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 12:51:21,983 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 12:51:21,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:51:21 BoogieIcfgContainer [2022-07-12 12:51:21,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 12:51:21,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 12:51:21,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 12:51:21,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 12:51:21,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:50:50" (1/3) ... [2022-07-12 12:51:21,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f807704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:51:21, skipping insertion in model container [2022-07-12 12:51:21,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:50:53" (2/3) ... [2022-07-12 12:51:21,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f807704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:51:21, skipping insertion in model container [2022-07-12 12:51:21,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:51:21" (3/3) ... [2022-07-12 12:51:21,992 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-12 12:51:22,001 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 12:51:22,001 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 12:51:22,069 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 12:51:22,073 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@4f03c959, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@153f5a01 [2022-07-12 12:51:22,073 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 12:51:22,081 INFO L276 IsEmpty]: Start isEmpty. Operand has 1685 states, 1169 states have (on average 1.3250641573994868) internal successors, (1549), 1196 states have internal predecessors, (1549), 437 states have call successors, (437), 78 states have call predecessors, (437), 77 states have return successors, (430), 426 states have call predecessors, (430), 430 states have call successors, (430) [2022-07-12 12:51:22,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-12 12:51:22,099 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:51:22,100 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-07-12 12:51:22,101 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:51:22,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:51:22,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1363995595, now seen corresponding path program 1 times [2022-07-12 12:51:22,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:51:22,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [657514139] [2022-07-12 12:51:22,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:51:22,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:51:22,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:51:22,120 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) [2022-07-12 12:51:22,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 12:51:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:51:23,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 1119 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 12:51:23,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:51:23,110 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-12 12:51:23,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:51:23,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:51:23,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [657514139] [2022-07-12 12:51:23,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [657514139] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:51:23,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:51:23,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:51:23,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501909607] [2022-07-12 12:51:23,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:51:23,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:51:23,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:51:23,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:51:23,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:51:23,159 INFO L87 Difference]: Start difference. First operand has 1685 states, 1169 states have (on average 1.3250641573994868) internal successors, (1549), 1196 states have internal predecessors, (1549), 437 states have call successors, (437), 78 states have call predecessors, (437), 77 states have return successors, (430), 426 states have call predecessors, (430), 430 states have call successors, (430) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 12:51:23,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:51:23,304 INFO L93 Difference]: Finished difference Result 3366 states and 4873 transitions. [2022-07-12 12:51:23,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:51:23,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2022-07-12 12:51:23,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:51:23,324 INFO L225 Difference]: With dead ends: 3366 [2022-07-12 12:51:23,324 INFO L226 Difference]: Without dead ends: 1666 [2022-07-12 12:51:23,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:51:23,338 INFO L413 NwaCegarLoop]: 2409 mSDtfsCounter, 0 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4816 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:51:23,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4816 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:51:23,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2022-07-12 12:51:23,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1666. [2022-07-12 12:51:23,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1666 states, 1159 states have (on average 1.3140638481449525) internal successors, (1523), 1177 states have internal predecessors, (1523), 430 states have call successors, (430), 77 states have call predecessors, (430), 76 states have return successors, (429), 425 states have call predecessors, (429), 429 states have call successors, (429) [2022-07-12 12:51:23,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2382 transitions. [2022-07-12 12:51:23,438 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2382 transitions. Word has length 92 [2022-07-12 12:51:23,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:51:23,439 INFO L495 AbstractCegarLoop]: Abstraction has 1666 states and 2382 transitions. [2022-07-12 12:51:23,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 12:51:23,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2382 transitions. [2022-07-12 12:51:23,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-12 12:51:23,445 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:51:23,445 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-07-12 12:51:23,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 12:51:23,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:51:23,670 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:51:23,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:51:23,671 INFO L85 PathProgramCache]: Analyzing trace with hash 138693986, now seen corresponding path program 1 times [2022-07-12 12:51:23,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:51:23,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870573300] [2022-07-12 12:51:23,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:51:23,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:51:23,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:51:23,677 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) [2022-07-12 12:51:23,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 12:51:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:51:24,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 1130 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:51:24,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:51:24,651 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-12 12:51:24,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:51:24,750 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-12 12:51:24,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:51:24,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870573300] [2022-07-12 12:51:24,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870573300] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 12:51:24,752 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 12:51:24,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-12 12:51:24,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171764387] [2022-07-12 12:51:24,753 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 12:51:24,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:51:24,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:51:24,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:51:24,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:51:24,755 INFO L87 Difference]: Start difference. First operand 1666 states and 2382 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 12:51:24,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:51:24,953 INFO L93 Difference]: Finished difference Result 3318 states and 4746 transitions. [2022-07-12 12:51:24,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:51:24,955 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 93 [2022-07-12 12:51:24,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:51:24,964 INFO L225 Difference]: With dead ends: 3318 [2022-07-12 12:51:24,964 INFO L226 Difference]: Without dead ends: 1669 [2022-07-12 12:51:24,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:51:24,971 INFO L413 NwaCegarLoop]: 2380 mSDtfsCounter, 0 mSDsluCounter, 9512 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11892 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:51:24,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11892 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:51:24,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2022-07-12 12:51:25,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1669. [2022-07-12 12:51:25,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1669 states, 1162 states have (on average 1.3132530120481927) internal successors, (1526), 1180 states have internal predecessors, (1526), 430 states have call successors, (430), 77 states have call predecessors, (430), 76 states have return successors, (429), 425 states have call predecessors, (429), 429 states have call successors, (429) [2022-07-12 12:51:25,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 2385 transitions. [2022-07-12 12:51:25,059 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 2385 transitions. Word has length 93 [2022-07-12 12:51:25,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:51:25,061 INFO L495 AbstractCegarLoop]: Abstraction has 1669 states and 2385 transitions. [2022-07-12 12:51:25,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 12:51:25,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 2385 transitions. [2022-07-12 12:51:25,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-12 12:51:25,064 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:51:25,065 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-07-12 12:51:25,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 12:51:25,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:51:25,288 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:51:25,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:51:25,288 INFO L85 PathProgramCache]: Analyzing trace with hash 634287989, now seen corresponding path program 2 times [2022-07-12 12:51:25,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:51:25,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052549442] [2022-07-12 12:51:25,290 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 12:51:25,290 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:51:25,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:51:25,295 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) [2022-07-12 12:51:25,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 12:51:26,032 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 12:51:26,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 12:51:26,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 12:51:26,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:51:26,142 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-07-12 12:51:26,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:51:26,143 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:51:26,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052549442] [2022-07-12 12:51:26,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052549442] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:51:26,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:51:26,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:51:26,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340996610] [2022-07-12 12:51:26,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:51:26,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:51:26,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:51:26,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:51:26,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:51:26,144 INFO L87 Difference]: Start difference. First operand 1669 states and 2385 transitions. Second operand has 5 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-12 12:51:26,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:51:26,251 INFO L93 Difference]: Finished difference Result 1676 states and 2391 transitions. [2022-07-12 12:51:26,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:51:26,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 96 [2022-07-12 12:51:26,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:51:26,262 INFO L225 Difference]: With dead ends: 1676 [2022-07-12 12:51:26,262 INFO L226 Difference]: Without dead ends: 1673 [2022-07-12 12:51:26,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:51:26,265 INFO L413 NwaCegarLoop]: 2378 mSDtfsCounter, 8 mSDsluCounter, 7122 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 9500 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:51:26,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 9500 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:51:26,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2022-07-12 12:51:26,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1673. [2022-07-12 12:51:26,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1673 states, 1165 states have (on average 1.3124463519313305) internal successors, (1529), 1183 states have internal predecessors, (1529), 430 states have call successors, (430), 78 states have call predecessors, (430), 77 states have return successors, (429), 425 states have call predecessors, (429), 429 states have call successors, (429) [2022-07-12 12:51:26,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 2388 transitions. [2022-07-12 12:51:26,313 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 2388 transitions. Word has length 96 [2022-07-12 12:51:26,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:51:26,314 INFO L495 AbstractCegarLoop]: Abstraction has 1673 states and 2388 transitions. [2022-07-12 12:51:26,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-12 12:51:26,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 2388 transitions. [2022-07-12 12:51:26,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-12 12:51:26,322 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:51:26,322 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:51:26,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-07-12 12:51:26,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:51:26,546 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:51:26,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:51:26,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1401028673, now seen corresponding path program 1 times [2022-07-12 12:51:26,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:51:26,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [216769721] [2022-07-12 12:51:26,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:51:26,549 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:51:26,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:51:26,550 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) [2022-07-12 12:51:26,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 12:51:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:51:27,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 1789 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:51:27,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:51:27,918 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-07-12 12:51:27,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:51:27,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:51:27,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [216769721] [2022-07-12 12:51:27,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [216769721] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:51:27,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:51:27,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:51:27,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731981087] [2022-07-12 12:51:27,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:51:27,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:51:27,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:51:27,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:51:27,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:51:27,923 INFO L87 Difference]: Start difference. First operand 1673 states and 2388 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 12:51:28,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:51:28,158 INFO L93 Difference]: Finished difference Result 4525 states and 6463 transitions. [2022-07-12 12:51:28,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:51:28,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 204 [2022-07-12 12:51:28,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:51:28,175 INFO L225 Difference]: With dead ends: 4525 [2022-07-12 12:51:28,175 INFO L226 Difference]: Without dead ends: 2873 [2022-07-12 12:51:28,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:51:28,182 INFO L413 NwaCegarLoop]: 2810 mSDtfsCounter, 1730 mSDsluCounter, 2339 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1730 SdHoareTripleChecker+Valid, 5149 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:51:28,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1730 Valid, 5149 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 12:51:28,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2873 states. [2022-07-12 12:51:28,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2873 to 2873. [2022-07-12 12:51:28,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2873 states, 2002 states have (on average 1.3181818181818181) internal successors, (2639), 2030 states have internal predecessors, (2639), 732 states have call successors, (732), 139 states have call predecessors, (732), 138 states have return successors, (731), 724 states have call predecessors, (731), 731 states have call successors, (731) [2022-07-12 12:51:28,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 4102 transitions. [2022-07-12 12:51:28,272 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 4102 transitions. Word has length 204 [2022-07-12 12:51:28,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:51:28,272 INFO L495 AbstractCegarLoop]: Abstraction has 2873 states and 4102 transitions. [2022-07-12 12:51:28,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 12:51:28,272 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 4102 transitions. [2022-07-12 12:51:28,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-07-12 12:51:28,285 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:51:28,286 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:51:28,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 12:51:28,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:51:28,500 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:51:28,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:51:28,500 INFO L85 PathProgramCache]: Analyzing trace with hash 347093790, now seen corresponding path program 1 times [2022-07-12 12:51:28,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:51:28,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769649182] [2022-07-12 12:51:28,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:51:28,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:51:28,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:51:28,503 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) [2022-07-12 12:51:28,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 12:51:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:51:30,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 1900 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 12:51:30,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:51:30,189 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-07-12 12:51:30,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:51:30,189 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:51:30,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769649182] [2022-07-12 12:51:30,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769649182] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:51:30,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:51:30,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 12:51:30,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597828273] [2022-07-12 12:51:30,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:51:30,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:51:30,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:51:30,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:51:30,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:51:30,191 INFO L87 Difference]: Start difference. First operand 2873 states and 4102 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 12:51:32,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:51:34,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:51:34,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:51:34,989 INFO L93 Difference]: Finished difference Result 7555 states and 11105 transitions. [2022-07-12 12:51:34,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:51:34,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 242 [2022-07-12 12:51:34,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:51:35,015 INFO L225 Difference]: With dead ends: 7555 [2022-07-12 12:51:35,015 INFO L226 Difference]: Without dead ends: 4710 [2022-07-12 12:51:35,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:51:35,031 INFO L413 NwaCegarLoop]: 3313 mSDtfsCounter, 1483 mSDsluCounter, 12276 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 292 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1630 SdHoareTripleChecker+Valid, 15589 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-12 12:51:35,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1630 Valid, 15589 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 40 Invalid, 2 Unknown, 0 Unchecked, 4.6s Time] [2022-07-12 12:51:35,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4710 states. [2022-07-12 12:51:35,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4710 to 2878. [2022-07-12 12:51:35,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2878 states, 2006 states have (on average 1.3175473579262214) internal successors, (2643), 2034 states have internal predecessors, (2643), 732 states have call successors, (732), 139 states have call predecessors, (732), 139 states have return successors, (737), 725 states have call predecessors, (737), 731 states have call successors, (737) [2022-07-12 12:51:35,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2878 states to 2878 states and 4112 transitions. [2022-07-12 12:51:35,146 INFO L78 Accepts]: Start accepts. Automaton has 2878 states and 4112 transitions. Word has length 242 [2022-07-12 12:51:35,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:51:35,147 INFO L495 AbstractCegarLoop]: Abstraction has 2878 states and 4112 transitions. [2022-07-12 12:51:35,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 12:51:35,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2878 states and 4112 transitions. [2022-07-12 12:51:35,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-07-12 12:51:35,162 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:51:35,162 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:51:35,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 12:51:35,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:51:35,376 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:51:35,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:51:35,376 INFO L85 PathProgramCache]: Analyzing trace with hash -947631555, now seen corresponding path program 1 times [2022-07-12 12:51:35,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:51:35,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957809204] [2022-07-12 12:51:35,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:51:35,378 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:51:35,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:51:35,379 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) [2022-07-12 12:51:35,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 12:51:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:51:37,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 1917 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 12:51:37,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:51:37,213 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-07-12 12:51:37,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:51:37,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:51:37,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957809204] [2022-07-12 12:51:37,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [957809204] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:51:37,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:51:37,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 12:51:37,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994565372] [2022-07-12 12:51:37,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:51:37,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:51:37,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:51:37,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:51:37,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:51:37,214 INFO L87 Difference]: Start difference. First operand 2878 states and 4112 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 12:51:37,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:51:37,877 INFO L93 Difference]: Finished difference Result 7581 states and 11143 transitions. [2022-07-12 12:51:37,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:51:37,878 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) Word has length 248 [2022-07-12 12:51:37,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:51:37,905 INFO L225 Difference]: With dead ends: 7581 [2022-07-12 12:51:37,905 INFO L226 Difference]: Without dead ends: 4731 [2022-07-12 12:51:37,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:51:37,919 INFO L413 NwaCegarLoop]: 3316 mSDtfsCounter, 1501 mSDsluCounter, 12301 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1651 SdHoareTripleChecker+Valid, 15617 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 12:51:37,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1651 Valid, 15617 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 12:51:37,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4731 states. [2022-07-12 12:51:38,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4731 to 2881. [2022-07-12 12:51:38,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 2009 states have (on average 1.3170731707317074) internal successors, (2646), 2036 states have internal predecessors, (2646), 732 states have call successors, (732), 139 states have call predecessors, (732), 139 states have return successors, (737), 726 states have call predecessors, (737), 731 states have call successors, (737) [2022-07-12 12:51:38,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 4115 transitions. [2022-07-12 12:51:38,056 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 4115 transitions. Word has length 248 [2022-07-12 12:51:38,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:51:38,057 INFO L495 AbstractCegarLoop]: Abstraction has 2881 states and 4115 transitions. [2022-07-12 12:51:38,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 12:51:38,058 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 4115 transitions. [2022-07-12 12:51:38,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-07-12 12:51:38,078 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:51:38,078 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:51:38,115 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-07-12 12:51:38,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:51:38,296 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:51:38,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:51:38,296 INFO L85 PathProgramCache]: Analyzing trace with hash 2018694300, now seen corresponding path program 1 times [2022-07-12 12:51:38,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:51:38,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1274277773] [2022-07-12 12:51:38,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:51:38,298 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:51:38,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:51:38,299 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) [2022-07-12 12:51:38,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 12:51:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:51:40,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 1934 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-12 12:51:40,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:51:40,569 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 129 proven. 6 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-07-12 12:51:40,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:51:41,159 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-12 12:51:41,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:51:41,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1274277773] [2022-07-12 12:51:41,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1274277773] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 12:51:41,159 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 12:51:41,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-12 12:51:41,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887084623] [2022-07-12 12:51:41,160 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 12:51:41,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 12:51:41,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:51:41,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 12:51:41,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-07-12 12:51:41,161 INFO L87 Difference]: Start difference. First operand 2881 states and 4115 transitions. Second operand has 13 states, 13 states have (on average 16.692307692307693) internal successors, (217), 11 states have internal predecessors, (217), 7 states have call successors, (45), 3 states have call predecessors, (45), 6 states have return successors, (44), 9 states have call predecessors, (44), 7 states have call successors, (44) [2022-07-12 12:51:45,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:51:48,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:51:49,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:51:50,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:51:52,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:51:53,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:51:55,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:51:57,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:51:57,829 INFO L93 Difference]: Finished difference Result 10463 states and 15278 transitions. [2022-07-12 12:51:57,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 12:51:57,830 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 16.692307692307693) internal successors, (217), 11 states have internal predecessors, (217), 7 states have call successors, (45), 3 states have call predecessors, (45), 6 states have return successors, (44), 9 states have call predecessors, (44), 7 states have call successors, (44) Word has length 254 [2022-07-12 12:51:57,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:51:57,878 INFO L225 Difference]: With dead ends: 10463 [2022-07-12 12:51:57,878 INFO L226 Difference]: Without dead ends: 7586 [2022-07-12 12:51:57,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 499 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-07-12 12:51:57,897 INFO L413 NwaCegarLoop]: 4115 mSDtfsCounter, 5334 mSDsluCounter, 34186 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 1317 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5492 SdHoareTripleChecker+Valid, 38301 SdHoareTripleChecker+Invalid, 3121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1317 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:51:57,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5492 Valid, 38301 Invalid, 3121 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1317 Valid, 1803 Invalid, 1 Unknown, 0 Unchecked, 16.0s Time] [2022-07-12 12:51:57,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7586 states. [2022-07-12 12:51:58,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7586 to 5735. [2022-07-12 12:51:58,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5735 states, 3999 states have (on average 1.317829457364341) internal successors, (5270), 4055 states have internal predecessors, (5270), 1456 states have call successors, (1456), 276 states have call predecessors, (1456), 279 states have return successors, (1477), 1445 states have call predecessors, (1477), 1455 states have call successors, (1477) [2022-07-12 12:51:58,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5735 states to 5735 states and 8203 transitions. [2022-07-12 12:51:58,300 INFO L78 Accepts]: Start accepts. Automaton has 5735 states and 8203 transitions. Word has length 254 [2022-07-12 12:51:58,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:51:58,300 INFO L495 AbstractCegarLoop]: Abstraction has 5735 states and 8203 transitions. [2022-07-12 12:51:58,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 16.692307692307693) internal successors, (217), 11 states have internal predecessors, (217), 7 states have call successors, (45), 3 states have call predecessors, (45), 6 states have return successors, (44), 9 states have call predecessors, (44), 7 states have call successors, (44) [2022-07-12 12:51:58,300 INFO L276 IsEmpty]: Start isEmpty. Operand 5735 states and 8203 transitions. [2022-07-12 12:51:58,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-07-12 12:51:58,323 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:51:58,324 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:51:58,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 12:51:58,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:51:58,552 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:51:58,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:51:58,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1748099620, now seen corresponding path program 1 times [2022-07-12 12:51:58,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:51:58,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562325024] [2022-07-12 12:51:58,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:51:58,554 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:51:58,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:51:58,560 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) [2022-07-12 12:51:58,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 12:52:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:52:00,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 1934 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-12 12:52:00,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:52:00,552 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-12 12:52:00,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:52:00,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:52:00,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562325024] [2022-07-12 12:52:00,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562325024] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:52:00,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:52:00,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 12:52:00,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865452355] [2022-07-12 12:52:00,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:52:00,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:52:00,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:52:00,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:52:00,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:52:00,554 INFO L87 Difference]: Start difference. First operand 5735 states and 8203 transitions. Second operand has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 5 states have internal predecessors, (152), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 12:52:02,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:52:02,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:52:02,950 INFO L93 Difference]: Finished difference Result 13286 states and 19322 transitions. [2022-07-12 12:52:02,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:52:02,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 5 states have internal predecessors, (152), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 254 [2022-07-12 12:52:02,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:52:02,994 INFO L225 Difference]: With dead ends: 13286 [2022-07-12 12:52:02,994 INFO L226 Difference]: Without dead ends: 7579 [2022-07-12 12:52:03,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:52:03,014 INFO L413 NwaCegarLoop]: 3128 mSDtfsCounter, 501 mSDsluCounter, 11888 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 15016 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:52:03,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 15016 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-07-12 12:52:03,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7579 states. [2022-07-12 12:52:03,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7579 to 5745. [2022-07-12 12:52:03,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5745 states, 4007 states have (on average 1.3171949089094086) internal successors, (5278), 4063 states have internal predecessors, (5278), 1456 states have call successors, (1456), 276 states have call predecessors, (1456), 281 states have return successors, (1481), 1447 states have call predecessors, (1481), 1455 states have call successors, (1481) [2022-07-12 12:52:03,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5745 states to 5745 states and 8215 transitions. [2022-07-12 12:52:03,220 INFO L78 Accepts]: Start accepts. Automaton has 5745 states and 8215 transitions. Word has length 254 [2022-07-12 12:52:03,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:52:03,220 INFO L495 AbstractCegarLoop]: Abstraction has 5745 states and 8215 transitions. [2022-07-12 12:52:03,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 5 states have internal predecessors, (152), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 12:52:03,221 INFO L276 IsEmpty]: Start isEmpty. Operand 5745 states and 8215 transitions. [2022-07-12 12:52:03,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-07-12 12:52:03,243 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:52:03,244 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:52:03,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 12:52:03,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:52:03,458 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:52:03,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:52:03,458 INFO L85 PathProgramCache]: Analyzing trace with hash 237284546, now seen corresponding path program 1 times [2022-07-12 12:52:03,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:52:03,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869906901] [2022-07-12 12:52:03,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:52:03,460 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:52:03,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:52:03,461 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) [2022-07-12 12:52:03,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 12:52:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:52:05,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 1996 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:52:05,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:52:05,604 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-07-12 12:52:05,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:52:05,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:52:05,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1869906901] [2022-07-12 12:52:05,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1869906901] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:52:05,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:52:05,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:52:05,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676164088] [2022-07-12 12:52:05,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:52:05,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:52:05,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:52:05,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:52:05,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:52:05,607 INFO L87 Difference]: Start difference. First operand 5745 states and 8215 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 12:52:05,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:52:05,741 INFO L93 Difference]: Finished difference Result 11464 states and 16402 transitions. [2022-07-12 12:52:05,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:52:05,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 264 [2022-07-12 12:52:05,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:52:05,760 INFO L225 Difference]: With dead ends: 11464 [2022-07-12 12:52:05,760 INFO L226 Difference]: Without dead ends: 5747 [2022-07-12 12:52:05,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:52:05,778 INFO L413 NwaCegarLoop]: 2380 mSDtfsCounter, 0 mSDsluCounter, 2376 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4756 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:52:05,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4756 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2022-07-12 12:52:05,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5747 states. [2022-07-12 12:52:05,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5747 to 5747. [2022-07-12 12:52:05,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5747 states, 4009 states have (on average 1.3170366674981293) internal successors, (5280), 4065 states have internal predecessors, (5280), 1456 states have call successors, (1456), 276 states have call predecessors, (1456), 281 states have return successors, (1481), 1447 states have call predecessors, (1481), 1455 states have call successors, (1481) [2022-07-12 12:52:06,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5747 states to 5747 states and 8217 transitions. [2022-07-12 12:52:06,015 INFO L78 Accepts]: Start accepts. Automaton has 5747 states and 8217 transitions. Word has length 264 [2022-07-12 12:52:06,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:52:06,016 INFO L495 AbstractCegarLoop]: Abstraction has 5747 states and 8217 transitions. [2022-07-12 12:52:06,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 12:52:06,016 INFO L276 IsEmpty]: Start isEmpty. Operand 5747 states and 8217 transitions. [2022-07-12 12:52:06,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-07-12 12:52:06,033 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:52:06,033 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:52:06,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 12:52:06,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:52:06,252 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:52:06,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:52:06,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1381690368, now seen corresponding path program 1 times [2022-07-12 12:52:06,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:52:06,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911783708] [2022-07-12 12:52:06,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:52:06,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:52:06,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:52:06,256 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) [2022-07-12 12:52:06,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 12:52:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:52:08,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 1994 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-12 12:52:08,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:52:08,483 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-07-12 12:52:08,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:52:08,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:52:08,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911783708] [2022-07-12 12:52:08,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911783708] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:52:08,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:52:08,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 12:52:08,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064541606] [2022-07-12 12:52:08,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:52:08,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:52:08,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:52:08,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:52:08,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:52:08,485 INFO L87 Difference]: Start difference. First operand 5747 states and 8217 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 12:52:09,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:52:10,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:52:10,028 INFO L93 Difference]: Finished difference Result 13310 states and 19350 transitions. [2022-07-12 12:52:10,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:52:10,031 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) Word has length 264 [2022-07-12 12:52:10,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:52:10,068 INFO L225 Difference]: With dead ends: 13310 [2022-07-12 12:52:10,069 INFO L226 Difference]: Without dead ends: 7591 [2022-07-12 12:52:10,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:52:10,084 INFO L413 NwaCegarLoop]: 3176 mSDtfsCounter, 503 mSDsluCounter, 12042 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 15218 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 12:52:10,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 15218 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 12:52:10,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7591 states. [2022-07-12 12:52:10,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7591 to 5751. [2022-07-12 12:52:10,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5751 states, 4013 states have (on average 1.3167206578619486) internal successors, (5284), 4067 states have internal predecessors, (5284), 1456 states have call successors, (1456), 276 states have call predecessors, (1456), 281 states have return successors, (1481), 1449 states have call predecessors, (1481), 1455 states have call successors, (1481) [2022-07-12 12:52:10,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5751 states to 5751 states and 8221 transitions. [2022-07-12 12:52:10,387 INFO L78 Accepts]: Start accepts. Automaton has 5751 states and 8221 transitions. Word has length 264 [2022-07-12 12:52:10,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:52:10,387 INFO L495 AbstractCegarLoop]: Abstraction has 5751 states and 8221 transitions. [2022-07-12 12:52:10,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 12:52:10,388 INFO L276 IsEmpty]: Start isEmpty. Operand 5751 states and 8221 transitions. [2022-07-12 12:52:10,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-07-12 12:52:10,403 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:52:10,403 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:52:10,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 12:52:10,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:52:10,626 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:52:10,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:52:10,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1482716132, now seen corresponding path program 1 times [2022-07-12 12:52:10,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:52:10,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302408449] [2022-07-12 12:52:10,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:52:10,628 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:52:10,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:52:10,630 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) [2022-07-12 12:52:10,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 12:52:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:52:13,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 2054 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:52:13,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:52:13,441 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-07-12 12:52:13,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:52:13,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:52:13,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302408449] [2022-07-12 12:52:13,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302408449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:52:13,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:52:13,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 12:52:13,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633140090] [2022-07-12 12:52:13,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:52:13,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:52:13,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:52:13,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:52:13,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:52:13,443 INFO L87 Difference]: Start difference. First operand 5751 states and 8221 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 12:52:13,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:52:13,589 INFO L93 Difference]: Finished difference Result 11474 states and 16406 transitions. [2022-07-12 12:52:13,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:52:13,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 274 [2022-07-12 12:52:13,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:52:13,613 INFO L225 Difference]: With dead ends: 11474 [2022-07-12 12:52:13,613 INFO L226 Difference]: Without dead ends: 5751 [2022-07-12 12:52:13,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:52:13,630 INFO L413 NwaCegarLoop]: 2379 mSDtfsCounter, 2238 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2238 SdHoareTripleChecker+Valid, 2379 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:52:13,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2238 Valid, 2379 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:52:13,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5751 states. [2022-07-12 12:52:13,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5751 to 5751. [2022-07-12 12:52:13,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5751 states, 4013 states have (on average 1.3162222775978072) internal successors, (5282), 4067 states have internal predecessors, (5282), 1456 states have call successors, (1456), 276 states have call predecessors, (1456), 281 states have return successors, (1481), 1449 states have call predecessors, (1481), 1455 states have call successors, (1481) [2022-07-12 12:52:13,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5751 states to 5751 states and 8219 transitions. [2022-07-12 12:52:13,889 INFO L78 Accepts]: Start accepts. Automaton has 5751 states and 8219 transitions. Word has length 274 [2022-07-12 12:52:13,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:52:13,889 INFO L495 AbstractCegarLoop]: Abstraction has 5751 states and 8219 transitions. [2022-07-12 12:52:13,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 12:52:13,889 INFO L276 IsEmpty]: Start isEmpty. Operand 5751 states and 8219 transitions. [2022-07-12 12:52:13,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-07-12 12:52:13,905 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:52:13,906 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:52:13,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 12:52:14,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:52:14,112 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:52:14,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:52:14,112 INFO L85 PathProgramCache]: Analyzing trace with hash -221798882, now seen corresponding path program 1 times [2022-07-12 12:52:14,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:52:14,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459463050] [2022-07-12 12:52:14,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:52:14,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:52:14,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:52:14,115 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) [2022-07-12 12:52:14,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 12:52:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:52:16,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 2054 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:52:16,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:52:16,693 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-07-12 12:52:16,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:52:16,693 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:52:16,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459463050] [2022-07-12 12:52:16,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1459463050] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:52:16,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:52:16,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:52:16,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103004149] [2022-07-12 12:52:16,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:52:16,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:52:16,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:52:16,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:52:16,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:52:16,695 INFO L87 Difference]: Start difference. First operand 5751 states and 8219 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 12:52:16,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:52:16,960 INFO L93 Difference]: Finished difference Result 13754 states and 20016 transitions. [2022-07-12 12:52:16,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:52:16,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 274 [2022-07-12 12:52:16,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:52:16,991 INFO L225 Difference]: With dead ends: 13754 [2022-07-12 12:52:16,991 INFO L226 Difference]: Without dead ends: 8031 [2022-07-12 12:52:17,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:52:17,007 INFO L413 NwaCegarLoop]: 3474 mSDtfsCounter, 710 mSDsluCounter, 2573 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 6047 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:52:17,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 6047 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:52:17,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8031 states. [2022-07-12 12:52:17,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8031 to 5753. [2022-07-12 12:52:17,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5753 states, 4015 states have (on average 1.3160647571606476) internal successors, (5284), 4069 states have internal predecessors, (5284), 1456 states have call successors, (1456), 276 states have call predecessors, (1456), 281 states have return successors, (1481), 1449 states have call predecessors, (1481), 1455 states have call successors, (1481) [2022-07-12 12:52:17,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5753 states to 5753 states and 8221 transitions. [2022-07-12 12:52:17,290 INFO L78 Accepts]: Start accepts. Automaton has 5753 states and 8221 transitions. Word has length 274 [2022-07-12 12:52:17,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:52:17,291 INFO L495 AbstractCegarLoop]: Abstraction has 5753 states and 8221 transitions. [2022-07-12 12:52:17,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 12:52:17,291 INFO L276 IsEmpty]: Start isEmpty. Operand 5753 states and 8221 transitions. [2022-07-12 12:52:17,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-07-12 12:52:17,306 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:52:17,306 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:52:17,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 12:52:17,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:52:17,532 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:52:17,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:52:17,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1239846434, now seen corresponding path program 1 times [2022-07-12 12:52:17,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:52:17,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1452034649] [2022-07-12 12:52:17,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:52:17,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:52:17,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:52:17,542 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) [2022-07-12 12:52:17,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 12:52:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:52:19,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 2076 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-12 12:52:19,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:52:19,946 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-07-12 12:52:19,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:52:19,946 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:52:19,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1452034649] [2022-07-12 12:52:19,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1452034649] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:52:19,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:52:19,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 12:52:19,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951705593] [2022-07-12 12:52:19,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:52:19,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 12:52:19,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:52:19,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 12:52:19,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:52:19,947 INFO L87 Difference]: Start difference. First operand 5753 states and 8221 transitions. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 12:52:20,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:52:20,275 INFO L93 Difference]: Finished difference Result 11496 states and 16436 transitions. [2022-07-12 12:52:20,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 12:52:20,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) Word has length 275 [2022-07-12 12:52:20,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:52:20,323 INFO L225 Difference]: With dead ends: 11496 [2022-07-12 12:52:20,324 INFO L226 Difference]: Without dead ends: 5771 [2022-07-12 12:52:20,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-12 12:52:20,356 INFO L413 NwaCegarLoop]: 2380 mSDtfsCounter, 1 mSDsluCounter, 11866 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 14246 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:52:20,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 14246 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:52:20,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5771 states. [2022-07-12 12:52:20,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5771 to 5763. [2022-07-12 12:52:20,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5763 states, 4023 states have (on average 1.3154362416107384) internal successors, (5292), 4075 states have internal predecessors, (5292), 1456 states have call successors, (1456), 276 states have call predecessors, (1456), 283 states have return successors, (1487), 1453 states have call predecessors, (1487), 1455 states have call successors, (1487) [2022-07-12 12:52:20,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5763 states to 5763 states and 8235 transitions. [2022-07-12 12:52:20,576 INFO L78 Accepts]: Start accepts. Automaton has 5763 states and 8235 transitions. Word has length 275 [2022-07-12 12:52:20,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:52:20,577 INFO L495 AbstractCegarLoop]: Abstraction has 5763 states and 8235 transitions. [2022-07-12 12:52:20,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 12:52:20,577 INFO L276 IsEmpty]: Start isEmpty. Operand 5763 states and 8235 transitions. [2022-07-12 12:52:20,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-07-12 12:52:20,592 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:52:20,592 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:52:20,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-12 12:52:20,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:52:20,812 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:52:20,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:52:20,812 INFO L85 PathProgramCache]: Analyzing trace with hash -797472289, now seen corresponding path program 1 times [2022-07-12 12:52:20,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:52:20,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317281476] [2022-07-12 12:52:20,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:52:20,814 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:52:20,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:52:20,818 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) [2022-07-12 12:52:20,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 12:52:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:52:23,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 2093 conjuncts, 33 conjunts are in the unsatisfiable core [2022-07-12 12:52:23,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:52:23,731 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 115 proven. 6 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-07-12 12:52:23,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:52:24,380 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-07-12 12:52:24,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:52:24,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317281476] [2022-07-12 12:52:24,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [317281476] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 12:52:24,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 12:52:24,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2022-07-12 12:52:24,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543326284] [2022-07-12 12:52:24,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:52:24,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 12:52:24,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:52:24,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 12:52:24,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-07-12 12:52:24,382 INFO L87 Difference]: Start difference. First operand 5763 states and 8235 transitions. Second operand has 8 states, 8 states have (on average 17.25) internal successors, (138), 6 states have internal predecessors, (138), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 12:52:25,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:52:25,007 INFO L93 Difference]: Finished difference Result 13754 states and 20016 transitions. [2022-07-12 12:52:25,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 12:52:25,009 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.25) internal successors, (138), 6 states have internal predecessors, (138), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 3 states have call successors, (26) Word has length 281 [2022-07-12 12:52:25,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:52:25,034 INFO L225 Difference]: With dead ends: 13754 [2022-07-12 12:52:25,035 INFO L226 Difference]: Without dead ends: 8019 [2022-07-12 12:52:25,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 544 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-07-12 12:52:25,052 INFO L413 NwaCegarLoop]: 3438 mSDtfsCounter, 709 mSDsluCounter, 19696 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 23134 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:52:25,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 23134 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 12:52:25,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8019 states. [2022-07-12 12:52:25,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8019 to 5765. [2022-07-12 12:52:25,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5765 states, 4025 states have (on average 1.3147826086956522) internal successors, (5292), 4077 states have internal predecessors, (5292), 1456 states have call successors, (1456), 276 states have call predecessors, (1456), 283 states have return successors, (1487), 1453 states have call predecessors, (1487), 1455 states have call successors, (1487) [2022-07-12 12:52:25,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5765 states to 5765 states and 8235 transitions. [2022-07-12 12:52:25,367 INFO L78 Accepts]: Start accepts. Automaton has 5765 states and 8235 transitions. Word has length 281 [2022-07-12 12:52:25,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:52:25,368 INFO L495 AbstractCegarLoop]: Abstraction has 5765 states and 8235 transitions. [2022-07-12 12:52:25,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.25) internal successors, (138), 6 states have internal predecessors, (138), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 12:52:25,368 INFO L276 IsEmpty]: Start isEmpty. Operand 5765 states and 8235 transitions. [2022-07-12 12:52:25,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-07-12 12:52:25,383 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:52:25,383 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:52:25,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-12 12:52:25,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:52:25,604 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:52:25,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:52:25,604 INFO L85 PathProgramCache]: Analyzing trace with hash -2112071882, now seen corresponding path program 1 times [2022-07-12 12:52:25,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:52:25,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1839861977] [2022-07-12 12:52:25,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:52:25,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:52:25,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:52:25,616 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:52:25,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-12 12:52:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:52:28,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 2070 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:52:28,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:52:28,347 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-07-12 12:52:28,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:52:28,347 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:52:28,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1839861977] [2022-07-12 12:52:28,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1839861977] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:52:28,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:52:28,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:52:28,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447410794] [2022-07-12 12:52:28,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:52:28,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:52:28,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:52:28,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:52:28,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:52:28,349 INFO L87 Difference]: Start difference. First operand 5765 states and 8235 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-12 12:52:28,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:52:28,540 INFO L93 Difference]: Finished difference Result 11508 states and 16444 transitions. [2022-07-12 12:52:28,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:52:28,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 281 [2022-07-12 12:52:28,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:52:28,559 INFO L225 Difference]: With dead ends: 11508 [2022-07-12 12:52:28,559 INFO L226 Difference]: Without dead ends: 5771 [2022-07-12 12:52:28,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:52:28,577 INFO L413 NwaCegarLoop]: 2379 mSDtfsCounter, 1 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4753 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:52:28,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4753 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:52:28,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5771 states. [2022-07-12 12:52:28,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5771 to 5767. [2022-07-12 12:52:28,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5767 states, 4027 states have (on average 1.3146262726595481) internal successors, (5294), 4079 states have internal predecessors, (5294), 1456 states have call successors, (1456), 276 states have call predecessors, (1456), 283 states have return successors, (1487), 1453 states have call predecessors, (1487), 1455 states have call successors, (1487) [2022-07-12 12:52:28,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5767 states to 5767 states and 8237 transitions. [2022-07-12 12:52:28,852 INFO L78 Accepts]: Start accepts. Automaton has 5767 states and 8237 transitions. Word has length 281 [2022-07-12 12:52:28,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:52:28,853 INFO L495 AbstractCegarLoop]: Abstraction has 5767 states and 8237 transitions. [2022-07-12 12:52:28,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-12 12:52:28,853 INFO L276 IsEmpty]: Start isEmpty. Operand 5767 states and 8237 transitions. [2022-07-12 12:52:28,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-07-12 12:52:28,869 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:52:28,869 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:52:28,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-12 12:52:29,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:52:29,083 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:52:29,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:52:29,084 INFO L85 PathProgramCache]: Analyzing trace with hash -691017872, now seen corresponding path program 1 times [2022-07-12 12:52:29,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:52:29,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515638333] [2022-07-12 12:52:29,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:52:29,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:52:29,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:52:29,087 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:52:29,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-12 12:52:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:52:31,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 2069 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 12:52:31,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:52:31,719 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-07-12 12:52:31,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:52:31,825 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-07-12 12:52:31,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:52:31,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515638333] [2022-07-12 12:52:31,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515638333] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 12:52:31,825 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 12:52:31,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-12 12:52:31,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446385667] [2022-07-12 12:52:31,826 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 12:52:31,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:52:31,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:52:31,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:52:31,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:52:31,827 INFO L87 Difference]: Start difference. First operand 5767 states and 8237 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-12 12:52:35,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:52:35,188 INFO L93 Difference]: Finished difference Result 20640 states and 30914 transitions. [2022-07-12 12:52:35,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:52:35,189 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 282 [2022-07-12 12:52:35,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:52:35,228 INFO L225 Difference]: With dead ends: 20640 [2022-07-12 12:52:35,229 INFO L226 Difference]: Without dead ends: 14901 [2022-07-12 12:52:35,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:52:35,245 INFO L413 NwaCegarLoop]: 5006 mSDtfsCounter, 3547 mSDsluCounter, 13211 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4155 SdHoareTripleChecker+Valid, 18217 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 1450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-12 12:52:35,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4155 Valid, 18217 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [410 Valid, 1450 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-12 12:52:35,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14901 states. [2022-07-12 12:52:35,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14901 to 5797. [2022-07-12 12:52:35,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5797 states, 4051 states have (on average 1.3142433966921747) internal successors, (5324), 4103 states have internal predecessors, (5324), 1462 states have call successors, (1462), 276 states have call predecessors, (1462), 283 states have return successors, (1493), 1459 states have call predecessors, (1493), 1461 states have call successors, (1493) [2022-07-12 12:52:35,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5797 states to 5797 states and 8279 transitions. [2022-07-12 12:52:35,641 INFO L78 Accepts]: Start accepts. Automaton has 5797 states and 8279 transitions. Word has length 282 [2022-07-12 12:52:35,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:52:35,642 INFO L495 AbstractCegarLoop]: Abstraction has 5797 states and 8279 transitions. [2022-07-12 12:52:35,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-12 12:52:35,642 INFO L276 IsEmpty]: Start isEmpty. Operand 5797 states and 8279 transitions. [2022-07-12 12:52:35,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-07-12 12:52:35,657 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:52:35,657 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:52:35,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-12 12:52:35,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:52:35,884 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:52:35,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:52:35,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1881056989, now seen corresponding path program 1 times [2022-07-12 12:52:35,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:52:35,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1338539698] [2022-07-12 12:52:35,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:52:35,886 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:52:35,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:52:35,894 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:52:35,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-12 12:52:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:52:38,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 2108 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:52:38,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:52:38,668 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2022-07-12 12:52:38,668 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:52:38,669 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:52:38,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1338539698] [2022-07-12 12:52:38,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1338539698] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:52:38,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:52:38,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:52:38,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450086515] [2022-07-12 12:52:38,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:52:38,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:52:38,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:52:38,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:52:38,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:52:38,671 INFO L87 Difference]: Start difference. First operand 5797 states and 8279 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-12 12:52:39,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:52:39,163 INFO L93 Difference]: Finished difference Result 13852 states and 20138 transitions. [2022-07-12 12:52:39,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:52:39,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 286 [2022-07-12 12:52:39,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:52:39,194 INFO L225 Difference]: With dead ends: 13852 [2022-07-12 12:52:39,195 INFO L226 Difference]: Without dead ends: 8083 [2022-07-12 12:52:39,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:52:39,216 INFO L413 NwaCegarLoop]: 3444 mSDtfsCounter, 692 mSDsluCounter, 2565 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 6009 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:52:39,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 6009 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:52:39,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8083 states. [2022-07-12 12:52:39,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8083 to 5799. [2022-07-12 12:52:39,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5799 states, 4053 states have (on average 1.314088329632371) internal successors, (5326), 4105 states have internal predecessors, (5326), 1462 states have call successors, (1462), 276 states have call predecessors, (1462), 283 states have return successors, (1493), 1459 states have call predecessors, (1493), 1461 states have call successors, (1493) [2022-07-12 12:52:39,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5799 states to 5799 states and 8281 transitions. [2022-07-12 12:52:39,566 INFO L78 Accepts]: Start accepts. Automaton has 5799 states and 8281 transitions. Word has length 286 [2022-07-12 12:52:39,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:52:39,566 INFO L495 AbstractCegarLoop]: Abstraction has 5799 states and 8281 transitions. [2022-07-12 12:52:39,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-12 12:52:39,566 INFO L276 IsEmpty]: Start isEmpty. Operand 5799 states and 8281 transitions. [2022-07-12 12:52:39,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-07-12 12:52:39,582 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:52:39,583 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:52:39,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-12 12:52:39,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:52:39,796 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:52:39,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:52:39,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1147415790, now seen corresponding path program 1 times [2022-07-12 12:52:39,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:52:39,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25629088] [2022-07-12 12:52:39,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:52:39,798 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:52:39,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:52:39,799 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:52:39,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-12 12:52:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:52:42,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 2210 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:52:42,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:52:42,669 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-07-12 12:52:42,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:52:42,669 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:52:42,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25629088] [2022-07-12 12:52:42,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [25629088] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:52:42,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:52:42,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:52:42,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090762044] [2022-07-12 12:52:42,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:52:42,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:52:42,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:52:42,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:52:42,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:52:42,672 INFO L87 Difference]: Start difference. First operand 5799 states and 8281 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-12 12:52:42,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:52:42,990 INFO L93 Difference]: Finished difference Result 11598 states and 16806 transitions. [2022-07-12 12:52:42,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:52:42,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 327 [2022-07-12 12:52:42,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:52:43,012 INFO L225 Difference]: With dead ends: 11598 [2022-07-12 12:52:43,012 INFO L226 Difference]: Without dead ends: 5827 [2022-07-12 12:52:43,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:52:43,033 INFO L413 NwaCegarLoop]: 2382 mSDtfsCounter, 2 mSDsluCounter, 2376 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4758 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:52:43,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4758 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:52:43,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5827 states. [2022-07-12 12:52:43,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5827 to 5803. [2022-07-12 12:52:43,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5803 states, 4057 states have (on average 1.313778654177964) internal successors, (5330), 4109 states have internal predecessors, (5330), 1462 states have call successors, (1462), 276 states have call predecessors, (1462), 283 states have return successors, (1493), 1459 states have call predecessors, (1493), 1461 states have call successors, (1493) [2022-07-12 12:52:43,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5803 states to 5803 states and 8285 transitions. [2022-07-12 12:52:43,359 INFO L78 Accepts]: Start accepts. Automaton has 5803 states and 8285 transitions. Word has length 327 [2022-07-12 12:52:43,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:52:43,359 INFO L495 AbstractCegarLoop]: Abstraction has 5803 states and 8285 transitions. [2022-07-12 12:52:43,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-12 12:52:43,360 INFO L276 IsEmpty]: Start isEmpty. Operand 5803 states and 8285 transitions. [2022-07-12 12:52:43,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-07-12 12:52:43,377 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:52:43,378 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:52:43,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-12 12:52:43,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:52:43,604 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:52:43,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:52:43,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1745619561, now seen corresponding path program 1 times [2022-07-12 12:52:43,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:52:43,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [318195169] [2022-07-12 12:52:43,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:52:43,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:52:43,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:52:43,607 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:52:43,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-12 12:52:46,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:52:46,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 2251 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 12:52:46,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:52:46,521 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2022-07-12 12:52:46,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:52:46,706 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-07-12 12:52:46,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:52:46,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [318195169] [2022-07-12 12:52:46,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [318195169] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 12:52:46,706 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 12:52:46,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-12 12:52:46,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056718855] [2022-07-12 12:52:46,706 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 12:52:46,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:52:46,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:52:46,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:52:46,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:52:46,708 INFO L87 Difference]: Start difference. First operand 5803 states and 8285 transitions. Second operand has 6 states, 6 states have (on average 28.5) internal successors, (171), 6 states have internal predecessors, (171), 4 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2022-07-12 12:52:47,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:52:47,172 INFO L93 Difference]: Finished difference Result 11662 states and 16910 transitions. [2022-07-12 12:52:47,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:52:47,173 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.5) internal successors, (171), 6 states have internal predecessors, (171), 4 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) Word has length 346 [2022-07-12 12:52:47,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:52:47,197 INFO L225 Difference]: With dead ends: 11662 [2022-07-12 12:52:47,197 INFO L226 Difference]: Without dead ends: 5887 [2022-07-12 12:52:47,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:52:47,220 INFO L413 NwaCegarLoop]: 2395 mSDtfsCounter, 8 mSDsluCounter, 7128 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 9523 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:52:47,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 9523 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:52:47,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5887 states. [2022-07-12 12:52:47,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5887 to 5887. [2022-07-12 12:52:47,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5887 states, 4093 states have (on average 1.3110188126068898) internal successors, (5366), 4145 states have internal predecessors, (5366), 1510 states have call successors, (1510), 276 states have call predecessors, (1510), 283 states have return successors, (1541), 1507 states have call predecessors, (1541), 1509 states have call successors, (1541) [2022-07-12 12:52:47,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5887 states to 5887 states and 8417 transitions. [2022-07-12 12:52:47,507 INFO L78 Accepts]: Start accepts. Automaton has 5887 states and 8417 transitions. Word has length 346 [2022-07-12 12:52:47,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:52:47,508 INFO L495 AbstractCegarLoop]: Abstraction has 5887 states and 8417 transitions. [2022-07-12 12:52:47,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.5) internal successors, (171), 6 states have internal predecessors, (171), 4 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2022-07-12 12:52:47,508 INFO L276 IsEmpty]: Start isEmpty. Operand 5887 states and 8417 transitions. [2022-07-12 12:52:47,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2022-07-12 12:52:47,523 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:52:47,523 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:52:47,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-12 12:52:47,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:52:47,728 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:52:47,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:52:47,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1515728814, now seen corresponding path program 2 times [2022-07-12 12:52:47,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:52:47,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1081537475] [2022-07-12 12:52:47,731 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 12:52:47,731 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:52:47,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:52:47,732 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:52:47,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-12 12:52:48,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 12:52:48,707 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 12:52:48,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:52:48,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:52:49,415 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2022-07-12 12:52:49,415 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:52:49,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:52:49,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1081537475] [2022-07-12 12:52:49,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1081537475] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:52:49,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:52:49,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 12:52:49,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410369619] [2022-07-12 12:52:49,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:52:49,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:52:49,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:52:49,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:52:49,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:52:49,417 INFO L87 Difference]: Start difference. First operand 5887 states and 8417 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2022-07-12 12:52:49,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:52:49,618 INFO L93 Difference]: Finished difference Result 6427 states and 8995 transitions. [2022-07-12 12:52:49,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:52:49,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 403 [2022-07-12 12:52:49,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:52:49,620 INFO L225 Difference]: With dead ends: 6427 [2022-07-12 12:52:49,620 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 12:52:49,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:52:49,632 INFO L413 NwaCegarLoop]: 2485 mSDtfsCounter, 1884 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1884 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:52:49,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1884 Valid, 2884 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:52:49,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 12:52:49,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 12:52:49,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 12:52:49,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 12:52:49,634 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 403 [2022-07-12 12:52:49,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:52:49,634 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 12:52:49,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2022-07-12 12:52:49,634 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 12:52:49,634 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 12:52:49,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 12:52:49,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2022-07-12 12:52:49,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:52:49,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.